/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/Problem01_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:47:06,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:47:06,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:47:06,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:47:06,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:47:06,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:47:06,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:47:06,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:47:06,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:47:06,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:47:06,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:47:06,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:47:06,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:47:06,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:47:06,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:47:06,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:47:06,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:47:06,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:47:06,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:47:06,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:47:06,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:47:06,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:47:06,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:47:06,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:47:06,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:47:06,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:47:06,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:47:06,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:47:06,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:47:06,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:47:06,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:47:06,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:47:06,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:47:06,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:47:06,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:47:06,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:47:06,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:47:06,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:47:06,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:47:06,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:47:06,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:47:06,473 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 04:47:06,522 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:47:06,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:47:06,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:47:06,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:47:06,527 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:47:06,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:47:06,528 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:47:06,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:47:06,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:47:06,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:47:06,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:47:06,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:47:06,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:47:06,531 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:47:06,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:47:06,531 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:47:06,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:47:06,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:47:06,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:47:06,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:47:06,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:47:06,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:47:06,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:47:06,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:47:06,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:47:06,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:47:06,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:47:06,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:47:06,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:47:06,534 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:47:06,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:47:07,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:47:07,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:47:07,013 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:47:07,014 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:47:07,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label40.c [2020-10-29 04:47:07,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f642870ba/4916e363d3444c18a20c43120d3a0fac/FLAGf7013214d [2020-10-29 04:47:07,929 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:47:07,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label40.c [2020-10-29 04:47:07,947 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f642870ba/4916e363d3444c18a20c43120d3a0fac/FLAGf7013214d [2020-10-29 04:47:08,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f642870ba/4916e363d3444c18a20c43120d3a0fac [2020-10-29 04:47:08,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:47:08,161 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:47:08,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:47:08,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:47:08,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:47:08,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:47:08" (1/1) ... [2020-10-29 04:47:08,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@216b903f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:08, skipping insertion in model container [2020-10-29 04:47:08,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:47:08" (1/1) ... [2020-10-29 04:47:08,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:47:08,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:47:08,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:47:08,728 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:47:08,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:47:08,929 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:47:08,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:08 WrapperNode [2020-10-29 04:47:08,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:47:08,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:47:08,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:47:08,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:47:08,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:08" (1/1) ... [2020-10-29 04:47:08,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:08" (1/1) ... [2020-10-29 04:47:08,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:08" (1/1) ... [2020-10-29 04:47:08,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:08" (1/1) ... [2020-10-29 04:47:09,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:08" (1/1) ... [2020-10-29 04:47:09,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:08" (1/1) ... [2020-10-29 04:47:09,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:08" (1/1) ... [2020-10-29 04:47:09,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:47:09,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:47:09,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:47:09,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:47:09,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:08" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:47:09,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:47:09,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:47:09,159 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:47:09,160 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 04:47:09,160 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:47:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 04:47:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:47:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:47:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:47:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:47:09,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:47:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 04:47:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:47:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:47:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:47:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:47:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:47:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:47:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:47:10,803 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:47:10,804 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 04:47:10,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:47:10 BoogieIcfgContainer [2020-10-29 04:47:10,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:47:10,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:47:10,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:47:10,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:47:10,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:47:08" (1/3) ... [2020-10-29 04:47:10,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@126bda39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:47:10, skipping insertion in model container [2020-10-29 04:47:10,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:08" (2/3) ... [2020-10-29 04:47:10,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@126bda39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:47:10, skipping insertion in model container [2020-10-29 04:47:10,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:47:10" (3/3) ... [2020-10-29 04:47:10,815 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label40.c [2020-10-29 04:47:10,827 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:47:10,833 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:47:10,846 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:47:10,875 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:47:10,876 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:47:10,876 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:47:10,876 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:47:10,876 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:47:10,876 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:47:10,876 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:47:10,877 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:47:10,906 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-29 04:47:10,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-29 04:47:10,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:47:10,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:47:10,918 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:47:10,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:47:10,924 INFO L82 PathProgramCache]: Analyzing trace with hash 341794889, now seen corresponding path program 1 times [2020-10-29 04:47:10,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:47:10,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618334982] [2020-10-29 04:47:10,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:47:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:11,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:11,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:13,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:13,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-29 04:47:13,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:47:13,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1960 [2020-10-29 04:47:13,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:13,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:13,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:47:13,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:47:13,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 04:47:13,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 04:47:13,447 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 04:47:13,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:47:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:13,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:13,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:13,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:47:13,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:13,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 04:47:13,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:13,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:13,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:47:13,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:13,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:47:13,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:13,560 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 04:47:13,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618334982] [2020-10-29 04:47:13,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:47:13,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:47:13,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965498687] [2020-10-29 04:47:13,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:47:13,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:47:13,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:47:13,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:47:13,588 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-10-29 04:47:13,743 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 04:47:15,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:47:15,702 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-29 04:47:15,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:47:15,705 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2020-10-29 04:47:15,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:47:15,720 INFO L225 Difference]: With dead ends: 562 [2020-10-29 04:47:15,720 INFO L226 Difference]: Without dead ends: 287 [2020-10-29 04:47:15,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:47:15,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-29 04:47:15,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-29 04:47:15,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-29 04:47:15,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 409 transitions. [2020-10-29 04:47:15,807 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 409 transitions. Word has length 94 [2020-10-29 04:47:15,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:47:15,808 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 409 transitions. [2020-10-29 04:47:15,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:47:15,808 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 409 transitions. [2020-10-29 04:47:15,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-29 04:47:15,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:47:15,815 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:47:15,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:47:15,815 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:47:15,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:47:15,816 INFO L82 PathProgramCache]: Analyzing trace with hash 902706922, now seen corresponding path program 1 times [2020-10-29 04:47:15,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:47:15,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819599880] [2020-10-29 04:47:15,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:47:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:15,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:15,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:18,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:19,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:19,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-29 04:47:19,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:47:19,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3944 [2020-10-29 04:47:19,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:19,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:19,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:47:19,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 04:47:19,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-29 04:47:19,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 04:47:20,062 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 04:47:20,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:47:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:20,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:20,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:20,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:47:20,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:20,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 04:47:20,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:20,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:47:20,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:20,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:47:20,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:20,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:47:20,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:20,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:20,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:20,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 04:47:20,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:20,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 04:47:20,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:20,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:20,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:47:20,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:20,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 04:47:20,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:20,192 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:47:20,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [819599880] [2020-10-29 04:47:20,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:47:20,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 04:47:20,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722163168] [2020-10-29 04:47:20,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:47:20,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:47:20,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:47:20,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:47:20,197 INFO L87 Difference]: Start difference. First operand 281 states and 409 transitions. Second operand 6 states. [2020-10-29 04:47:20,661 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 04:47:22,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:47:22,747 INFO L93 Difference]: Finished difference Result 1114 states and 1673 transitions. [2020-10-29 04:47:22,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:47:22,750 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2020-10-29 04:47:22,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:47:22,769 INFO L225 Difference]: With dead ends: 1114 [2020-10-29 04:47:22,770 INFO L226 Difference]: Without dead ends: 839 [2020-10-29 04:47:22,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:47:22,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2020-10-29 04:47:22,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 829. [2020-10-29 04:47:22,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2020-10-29 04:47:22,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1136 transitions. [2020-10-29 04:47:22,842 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1136 transitions. Word has length 103 [2020-10-29 04:47:22,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:47:22,843 INFO L481 AbstractCegarLoop]: Abstraction has 829 states and 1136 transitions. [2020-10-29 04:47:22,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:47:22,843 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1136 transitions. [2020-10-29 04:47:22,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-29 04:47:22,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:47:22,852 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:47:22,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:47:22,852 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:47:22,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:47:22,853 INFO L82 PathProgramCache]: Analyzing trace with hash -722591242, now seen corresponding path program 1 times [2020-10-29 04:47:22,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:47:22,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542442953] [2020-10-29 04:47:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:47:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:22,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:22,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:25,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:25,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:26,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:26,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-29 04:47:26,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:47:26,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3869 [2020-10-29 04:47:26,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:26,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:26,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:47:26,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-29 04:47:26,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-29 04:47:26,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:26,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:47:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:26,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:26,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:26,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:47:26,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:26,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 04:47:26,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:26,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:26,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:47:26,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:26,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:47:26,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:47:26,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:47:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:26,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:26,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:26,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 04:47:26,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:26,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 04:47:26,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:26,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:26,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:47:26,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:26,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 04:47:26,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:47:27,015 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:47:27,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542442953] [2020-10-29 04:47:27,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:47:27,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 04:47:27,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807753721] [2020-10-29 04:47:27,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:47:27,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:47:27,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:47:27,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:47:27,018 INFO L87 Difference]: Start difference. First operand 829 states and 1136 transitions. Second operand 6 states. [2020-10-29 04:47:27,471 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 04:47:29,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:47:29,175 INFO L93 Difference]: Finished difference Result 2484 states and 3536 transitions. [2020-10-29 04:47:29,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:47:29,176 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2020-10-29 04:47:29,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:47:29,189 INFO L225 Difference]: With dead ends: 2484 [2020-10-29 04:47:29,189 INFO L226 Difference]: Without dead ends: 1661 [2020-10-29 04:47:29,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:47:29,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2020-10-29 04:47:29,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1514. [2020-10-29 04:47:29,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1514 states. [2020-10-29 04:47:29,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 2046 transitions. [2020-10-29 04:47:29,280 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 2046 transitions. Word has length 113 [2020-10-29 04:47:29,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:47:29,281 INFO L481 AbstractCegarLoop]: Abstraction has 1514 states and 2046 transitions. [2020-10-29 04:47:29,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:47:29,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 2046 transitions. [2020-10-29 04:47:29,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-29 04:47:29,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:47:29,301 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:47:29,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:47:29,301 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:47:29,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:47:29,304 INFO L82 PathProgramCache]: Analyzing trace with hash -907204783, now seen corresponding path program 1 times [2020-10-29 04:47:29,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:47:29,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63587831] [2020-10-29 04:47:29,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:47:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:29,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:29,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:29,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:34,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:34,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:34,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-29 04:47:34,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:47:34,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 04:47:34,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:34,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:34,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:47:34,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:47:34,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-29 04:47:34,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:34,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:47:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:34,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:34,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:34,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:47:34,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:34,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:47:34,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:34,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:34,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:47:34,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:34,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:47:34,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:34,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:47:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:34,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:34,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:34,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 04:47:34,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:34,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 04:47:34,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:34,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:34,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:47:34,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:34,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:47:34,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:47:34,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 04:47:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:34,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:34,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:34,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:34,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-29 04:47:34,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:47:34,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 04:47:34,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:34,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:34,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:47:34,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:34,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 04:47:34,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:47:34,679 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-29 04:47:34,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63587831] [2020-10-29 04:47:34,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:47:34,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:47:34,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789857963] [2020-10-29 04:47:34,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:47:34,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:47:34,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:47:34,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:47:34,683 INFO L87 Difference]: Start difference. First operand 1514 states and 2046 transitions. Second operand 5 states. [2020-10-29 04:47:36,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:47:36,236 INFO L93 Difference]: Finished difference Result 3854 states and 5319 transitions. [2020-10-29 04:47:36,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:47:36,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-10-29 04:47:36,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:47:36,260 INFO L225 Difference]: With dead ends: 3854 [2020-10-29 04:47:36,260 INFO L226 Difference]: Without dead ends: 2346 [2020-10-29 04:47:36,266 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 04:47:36,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2020-10-29 04:47:36,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 1929. [2020-10-29 04:47:36,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1929 states. [2020-10-29 04:47:36,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2537 transitions. [2020-10-29 04:47:36,370 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2537 transitions. Word has length 128 [2020-10-29 04:47:36,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:47:36,371 INFO L481 AbstractCegarLoop]: Abstraction has 1929 states and 2537 transitions. [2020-10-29 04:47:36,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:47:36,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2537 transitions. [2020-10-29 04:47:36,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-29 04:47:36,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:47:36,381 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-29 04:47:36,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:47:36,381 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:47:36,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:47:36,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1989474140, now seen corresponding path program 1 times [2020-10-29 04:47:36,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:47:36,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993655342] [2020-10-29 04:47:36,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:47:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:36,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:36,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:37,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:37,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:38,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:38,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:39,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:39,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-29 04:47:39,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:47:39,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2797 [2020-10-29 04:47:39,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:39,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:39,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:47:39,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:47:39,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-29 04:47:39,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:47:39,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:47:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:39,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:39,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:39,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:47:39,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:39,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 04:47:39,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:39,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:39,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:47:39,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:39,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:47:39,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:47:39,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:47:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:39,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:39,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:39,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 04:47:39,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:39,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 04:47:39,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:39,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:39,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:47:39,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:39,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:47:39,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:39,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 04:47:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:39,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:39,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:39,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:39,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 04:47:39,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:47:39,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-29 04:47:39,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:39,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:39,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:47:39,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:39,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 04:47:39,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:39,749 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-29 04:47:39,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993655342] [2020-10-29 04:47:39,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:47:39,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:47:39,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243565478] [2020-10-29 04:47:39,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:47:39,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:47:39,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:47:39,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:47:39,753 INFO L87 Difference]: Start difference. First operand 1929 states and 2537 transitions. Second operand 5 states. [2020-10-29 04:47:39,924 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 04:47:41,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:47:41,425 INFO L93 Difference]: Finished difference Result 4681 states and 6298 transitions. [2020-10-29 04:47:41,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:47:41,426 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 177 [2020-10-29 04:47:41,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:47:41,427 INFO L225 Difference]: With dead ends: 4681 [2020-10-29 04:47:41,427 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 04:47:41,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:47:41,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 04:47:41,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 04:47:41,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 04:47:41,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 04:47:41,439 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 177 [2020-10-29 04:47:41,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:47:41,439 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 04:47:41,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:47:41,439 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 04:47:41,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 04:47:41,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:47:41,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 04:47:42,129 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 12 [2020-10-29 04:47:42,325 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 12 [2020-10-29 04:47:42,471 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 29 [2020-10-29 04:47:43,016 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 35 [2020-10-29 04:47:43,235 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 04:47:43,235 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 04:47:43,236 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 04:47:43,236 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 04:47:43,236 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:47:43,236 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-29 04:47:43,236 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:47:43,236 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,236 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,236 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,237 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,237 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,237 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,237 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-29 04:47:43,237 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-29 04:47:43,237 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-29 04:47:43,237 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-29 04:47:43,237 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-29 04:47:43,237 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-29 04:47:43,238 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-29 04:47:43,238 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-29 04:47:43,238 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-29 04:47:43,238 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-29 04:47:43,238 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-29 04:47:43,238 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-29 04:47:43,238 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,238 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,238 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,238 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,239 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,239 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,239 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-29 04:47:43,239 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-29 04:47:43,239 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-29 04:47:43,239 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-29 04:47:43,239 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-29 04:47:43,239 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-29 04:47:43,240 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-29 04:47:43,240 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-29 04:47:43,240 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-29 04:47:43,240 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-29 04:47:43,240 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,240 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,240 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,240 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,240 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,240 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,240 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-29 04:47:43,240 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-29 04:47:43,240 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-29 04:47:43,241 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-29 04:47:43,241 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-29 04:47:43,241 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-29 04:47:43,241 INFO L270 CegarLoopResult]: At program point L439(line 439) the Hoare annotation is: (and (not (= |old(~a17~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 1))) [2020-10-29 04:47:43,243 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-29 04:47:43,243 INFO L274 CegarLoopResult]: For program point L439-1(line 439) no Hoare annotation was computed. [2020-10-29 04:47:43,243 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-29 04:47:43,243 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-29 04:47:43,243 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-29 04:47:43,243 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-29 04:47:43,244 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-29 04:47:43,244 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-29 04:47:43,245 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-29 04:47:43,245 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,245 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,245 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,245 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,247 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,247 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-29 04:47:43,248 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-29 04:47:43,248 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-29 04:47:43,248 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-29 04:47:43,248 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-29 04:47:43,248 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-29 04:47:43,248 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-29 04:47:43,248 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-29 04:47:43,248 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-29 04:47:43,248 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,249 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,249 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,249 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,249 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,249 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-29 04:47:43,249 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-29 04:47:43,249 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-29 04:47:43,249 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-29 04:47:43,249 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-29 04:47:43,249 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-29 04:47:43,250 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-29 04:47:43,250 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-29 04:47:43,250 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-29 04:47:43,250 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-29 04:47:43,250 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-29 04:47:43,250 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-29 04:47:43,250 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-29 04:47:43,250 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,250 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,250 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,251 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,251 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,251 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-29 04:47:43,251 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-29 04:47:43,251 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-29 04:47:43,251 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,251 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,251 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-29 04:47:43,252 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-29 04:47:43,252 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-29 04:47:43,252 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-29 04:47:43,252 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-29 04:47:43,252 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-29 04:47:43,253 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,253 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,253 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,253 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,253 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-29 04:47:43,253 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,253 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-29 04:47:43,253 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-29 04:47:43,253 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-29 04:47:43,253 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-29 04:47:43,254 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-29 04:47:43,254 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-29 04:47:43,254 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-29 04:47:43,254 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-29 04:47:43,254 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-29 04:47:43,255 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-29 04:47:43,255 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-29 04:47:43,255 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-29 04:47:43,255 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-29 04:47:43,255 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,255 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,255 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,255 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,256 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,256 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-29 04:47:43,256 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-29 04:47:43,256 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-29 04:47:43,256 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-29 04:47:43,256 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-29 04:47:43,256 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-29 04:47:43,256 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-29 04:47:43,256 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-29 04:47:43,256 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,257 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,257 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse0 (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)))) (and (or (not (= |old(~a7~0)| 1)) .cse0) (or (not (<= 15 |old(~a8~0)|)) .cse0) (or (not (<= |old(~a16~0)| 5)) .cse0) (or (not (= |old(~a17~0)| 1)) .cse0))) [2020-10-29 04:47:43,257 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,257 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,257 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,257 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-29 04:47:43,257 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-29 04:47:43,257 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-29 04:47:43,257 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-29 04:47:43,258 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-29 04:47:43,258 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-29 04:47:43,258 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-29 04:47:43,258 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-29 04:47:43,258 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-29 04:47:43,258 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-29 04:47:43,258 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-29 04:47:43,258 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,258 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,259 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,259 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,259 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-29 04:47:43,259 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,259 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,259 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-29 04:47:43,259 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-29 04:47:43,259 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-29 04:47:43,259 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-29 04:47:43,259 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-29 04:47:43,260 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-29 04:47:43,260 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-29 04:47:43,260 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-29 04:47:43,260 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-29 04:47:43,260 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-29 04:47:43,260 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-29 04:47:43,260 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-29 04:47:43,260 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,260 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,260 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,261 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,261 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,261 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-29 04:47:43,261 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:43,261 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-29 04:47:43,261 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-29 04:47:43,261 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-29 04:47:43,261 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-29 04:47:43,261 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-29 04:47:43,261 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-29 04:47:43,261 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-29 04:47:43,262 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-29 04:47:43,263 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-29 04:47:43,263 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-29 04:47:43,263 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-29 04:47:43,263 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-29 04:47:43,263 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-29 04:47:43,263 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-29 04:47:43,263 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:47:43,263 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-29 04:47:43,264 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 04:47:43,264 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:47:43,264 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|))) [2020-10-29 04:47:43,264 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-29 04:47:43,264 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (= ~a7~0 1) (not (<= |old(~a16~0)| 5)) (<= ~a16~0 5) (not (<= 15 |old(~a8~0)|)) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-29 04:47:43,264 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-29 04:47:43,264 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-29 04:47:43,264 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (= ~a7~0 1) (not (<= |old(~a16~0)| 5)) (<= ~a16~0 5) (not (<= 15 |old(~a8~0)|)) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-29 04:47:43,265 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-29 04:47:43,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:47:43 BoogieIcfgContainer [2020-10-29 04:47:43,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 04:47:43,296 INFO L168 Benchmark]: Toolchain (without parser) took 35137.78 ms. Allocated memory was 158.3 MB in the beginning and 717.2 MB in the end (delta: 558.9 MB). Free memory was 132.0 MB in the beginning and 506.1 MB in the end (delta: -374.2 MB). Peak memory consumption was 428.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:47:43,297 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 158.3 MB. Free memory is still 131.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:47:43,298 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.12 ms. Allocated memory is still 158.3 MB. Free memory was 131.2 MB in the beginning and 135.9 MB in the end (delta: -4.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. [2020-10-29 04:47:43,305 INFO L168 Benchmark]: Boogie Preprocessor took 132.95 ms. Allocated memory is still 158.3 MB. Free memory was 135.9 MB in the beginning and 131.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:47:43,305 INFO L168 Benchmark]: RCFGBuilder took 1740.02 ms. Allocated memory is still 158.3 MB. Free memory was 131.2 MB in the beginning and 111.3 MB in the end (delta: 19.8 MB). Peak memory consumption was 86.0 MB. Max. memory is 8.0 GB. [2020-10-29 04:47:43,306 INFO L168 Benchmark]: TraceAbstraction took 32483.70 ms. Allocated memory was 158.3 MB in the beginning and 717.2 MB in the end (delta: 558.9 MB). Free memory was 111.3 MB in the beginning and 506.1 MB in the end (delta: -394.8 MB). Peak memory consumption was 407.3 MB. Max. memory is 8.0 GB. [2020-10-29 04:47:43,318 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 158.3 MB. Free memory is still 131.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 766.12 ms. Allocated memory is still 158.3 MB. Free memory was 131.2 MB in the beginning and 135.9 MB in the end (delta: -4.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 132.95 ms. Allocated memory is still 158.3 MB. Free memory was 135.9 MB in the beginning and 131.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1740.02 ms. Allocated memory is still 158.3 MB. Free memory was 131.2 MB in the beginning and 111.3 MB in the end (delta: 19.8 MB). Peak memory consumption was 86.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 32483.70 ms. Allocated memory was 158.3 MB in the beginning and 717.2 MB in the end (delta: 558.9 MB). Free memory was 111.3 MB in the beginning and 506.1 MB in the end (delta: -394.8 MB). Peak memory consumption was 407.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((!(\old(a17) == 1) || a7 == 1) || !(\old(a16) <= 5)) || a16 <= 5) || !(15 <= \old(a8))) || 15 <= a8) || a17 == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 30.5s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 132 SDtfs, 2093 SDslu, 100 SDs, 0 SdLazy, 3277 SolverSat, 744 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1929occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 580 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 123 PreInvPairs, 167 NumberOfFragments, 296 HoareAnnotationTreeSize, 123 FomulaSimplifications, 27994 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2690 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 19.2s InterpolantComputationTime, 615 NumberOfCodeBlocks, 615 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 610 ConstructedInterpolants, 0 QuantifiedInterpolants, 285736 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 143/149 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...