/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/Problem02_label31.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:49:45,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:49:45,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:49:45,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:49:45,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:49:45,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:49:45,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:49:45,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:49:45,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:49:45,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:49:45,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:49:45,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:49:45,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:49:45,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:49:45,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:49:45,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:49:45,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:49:45,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:49:45,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:49:45,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:49:45,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:49:45,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:49:45,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:49:45,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:49:45,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:49:45,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:49:45,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:49:45,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:49:45,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:49:45,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:49:45,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:49:45,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:49:45,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:49:45,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:49:45,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:49:45,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:49:45,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:49:45,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:49:45,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:49:45,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:49:45,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:49:45,958 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 04:49:46,014 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:49:46,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:49:46,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:49:46,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:49:46,017 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:49:46,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:49:46,018 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:49:46,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:49:46,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:49:46,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:49:46,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:49:46,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:49:46,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:49:46,019 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:49:46,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:49:46,020 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:49:46,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:49:46,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:49:46,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:49:46,021 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:49:46,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:49:46,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:49:46,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:49:46,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:49:46,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:49:46,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:49:46,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:49:46,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:49:46,023 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:49:46,023 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:49:46,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:49:46,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:49:46,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:49:46,498 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:49:46,499 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:49:46,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label31.c [2020-10-29 04:49:46,602 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b94ef19e/f8490fe5580b4caa996d1348a5b638b4/FLAG3f60201ab [2020-10-29 04:49:47,441 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:49:47,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label31.c [2020-10-29 04:49:47,472 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b94ef19e/f8490fe5580b4caa996d1348a5b638b4/FLAG3f60201ab [2020-10-29 04:49:47,661 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b94ef19e/f8490fe5580b4caa996d1348a5b638b4 [2020-10-29 04:49:47,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:49:47,678 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:49:47,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:49:47,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:49:47,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:49:47,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:49:47" (1/1) ... [2020-10-29 04:49:47,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34350f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:47, skipping insertion in model container [2020-10-29 04:49:47,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:49:47" (1/1) ... [2020-10-29 04:49:47,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:49:47,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:49:48,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:49:48,250 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:49:48,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:49:48,504 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:49:48,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:48 WrapperNode [2020-10-29 04:49:48,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:49:48,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:49:48,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:49:48,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:49:48,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:48" (1/1) ... [2020-10-29 04:49:48,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:48" (1/1) ... [2020-10-29 04:49:48,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:48" (1/1) ... [2020-10-29 04:49:48,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:48" (1/1) ... [2020-10-29 04:49:48,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:48" (1/1) ... [2020-10-29 04:49:48,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:48" (1/1) ... [2020-10-29 04:49:48,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:48" (1/1) ... [2020-10-29 04:49:48,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:49:48,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:49:48,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:49:48,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:49:48,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:48" (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 04:49:48,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:49:48,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:49:48,767 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:49:48,767 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 04:49:48,768 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:49:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 04:49:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:49:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:49:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:49:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:49:48,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:49:48,770 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 04:49:48,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:49:48,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:49:48,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:49:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:49:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:49:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:49:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:49:50,114 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:49:50,114 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 04:49:50,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:49:50 BoogieIcfgContainer [2020-10-29 04:49:50,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:49:50,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:49:50,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:49:50,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:49:50,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:49:47" (1/3) ... [2020-10-29 04:49:50,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d7c712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:49:50, skipping insertion in model container [2020-10-29 04:49:50,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:48" (2/3) ... [2020-10-29 04:49:50,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d7c712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:49:50, skipping insertion in model container [2020-10-29 04:49:50,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:49:50" (3/3) ... [2020-10-29 04:49:50,127 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label31.c [2020-10-29 04:49:50,141 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:49:50,147 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:49:50,161 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:49:50,193 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:49:50,193 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:49:50,193 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:49:50,193 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:49:50,193 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:49:50,194 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:49:50,194 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:49:50,194 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:49:50,219 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-29 04:49:50,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-29 04:49:50,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:49:50,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:49:50,238 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:49:50,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:49:50,245 INFO L82 PathProgramCache]: Analyzing trace with hash -592860067, now seen corresponding path program 1 times [2020-10-29 04:49:50,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:49:50,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862987183] [2020-10-29 04:49:50,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:49:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:50,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:51,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:52,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:52,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 04:49:52,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:49:52,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1984 [2020-10-29 04:49:52,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:52,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:49:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:49:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 04:49:52,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 04:49:52,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:49:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:52,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:52,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:52,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:49:52,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:49:52,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 04:49:52,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:52,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:52,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:49:52,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:49:52,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:49:52,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:49:52,931 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 04:49:52,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862987183] [2020-10-29 04:49:52,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:49:52,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:49:52,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100806386] [2020-10-29 04:49:52,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:49:52,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:49:52,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:49:52,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:49:52,962 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 5 states. [2020-10-29 04:49:53,146 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 04:49:55,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:49:55,515 INFO L93 Difference]: Finished difference Result 632 states and 1079 transitions. [2020-10-29 04:49:55,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:49:55,522 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2020-10-29 04:49:55,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:49:55,539 INFO L225 Difference]: With dead ends: 632 [2020-10-29 04:49:55,540 INFO L226 Difference]: Without dead ends: 328 [2020-10-29 04:49:55,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:49:55,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-10-29 04:49:55,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 320. [2020-10-29 04:49:55,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-10-29 04:49:55,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 481 transitions. [2020-10-29 04:49:55,641 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 481 transitions. Word has length 123 [2020-10-29 04:49:55,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:49:55,656 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 481 transitions. [2020-10-29 04:49:55,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:49:55,656 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 481 transitions. [2020-10-29 04:49:55,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-29 04:49:55,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:49:55,662 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:49:55,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:49:55,664 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:49:55,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:49:55,665 INFO L82 PathProgramCache]: Analyzing trace with hash -2115188086, now seen corresponding path program 1 times [2020-10-29 04:49:55,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:49:55,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008282311] [2020-10-29 04:49:55,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:49:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:55,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:55,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:56,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:57,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:57,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:57,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 04:49:57,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:49:57,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1778 [2020-10-29 04:49:57,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:57,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:57,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:49:57,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 04:49:57,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-29 04:49:57,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:49:57,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:49:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:57,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:57,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:57,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:49:57,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:49:57,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 04:49:57,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:57,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:57,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:49:57,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:49:57,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:49:57,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-29 04:49:58,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:49:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:58,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:58,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:58,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:49:58,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:49:58,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 04:49:58,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:58,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:58,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:49:58,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:49:58,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 04:49:58,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:49:58,221 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:49:58,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1008282311] [2020-10-29 04:49:58,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:49:58,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:49:58,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892001776] [2020-10-29 04:49:58,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:49:58,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:49:58,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:49:58,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:49:58,231 INFO L87 Difference]: Start difference. First operand 320 states and 481 transitions. Second operand 5 states. [2020-10-29 04:49:58,657 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-29 04:50:00,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:50:00,085 INFO L93 Difference]: Finished difference Result 739 states and 1145 transitions. [2020-10-29 04:50:00,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:50:00,086 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2020-10-29 04:50:00,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:50:00,091 INFO L225 Difference]: With dead ends: 739 [2020-10-29 04:50:00,091 INFO L226 Difference]: Without dead ends: 328 [2020-10-29 04:50:00,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:50:00,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-10-29 04:50:00,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 320. [2020-10-29 04:50:00,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-10-29 04:50:00,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 479 transitions. [2020-10-29 04:50:00,151 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 479 transitions. Word has length 138 [2020-10-29 04:50:00,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:50:00,151 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 479 transitions. [2020-10-29 04:50:00,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:50:00,152 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 479 transitions. [2020-10-29 04:50:00,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-29 04:50:00,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:50:00,164 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:50:00,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:50:00,165 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:50:00,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:50:00,173 INFO L82 PathProgramCache]: Analyzing trace with hash -19741908, now seen corresponding path program 1 times [2020-10-29 04:50:00,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:50:00,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154159158] [2020-10-29 04:50:00,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:50:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:00,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:00,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:00,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:01,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:01,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-29 04:50:01,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:50:01,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1387 [2020-10-29 04:50:01,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:01,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:01,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:50:01,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-29 04:50:01,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-29 04:50:01,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:50:01,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:50:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:01,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:01,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:01,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:50:01,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:01,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 04:50:01,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:01,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:01,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:50:01,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:01,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:50:01,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:01,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:50:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:01,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:01,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:01,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 04:50:01,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:01,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 04:50:01,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:01,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:01,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:50:01,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:01,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 04:50:01,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:02,134 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:50:02,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154159158] [2020-10-29 04:50:02,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:50:02,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:50:02,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045241776] [2020-10-29 04:50:02,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:50:02,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:50:02,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:50:02,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:50:02,137 INFO L87 Difference]: Start difference. First operand 320 states and 479 transitions. Second operand 5 states. [2020-10-29 04:50:02,580 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 04:50:03,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:50:03,881 INFO L93 Difference]: Finished difference Result 731 states and 1132 transitions. [2020-10-29 04:50:03,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:50:03,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2020-10-29 04:50:03,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:50:03,890 INFO L225 Difference]: With dead ends: 731 [2020-10-29 04:50:03,890 INFO L226 Difference]: Without dead ends: 328 [2020-10-29 04:50:03,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:50:03,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-10-29 04:50:03,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 320. [2020-10-29 04:50:03,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-10-29 04:50:03,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 477 transitions. [2020-10-29 04:50:03,925 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 477 transitions. Word has length 145 [2020-10-29 04:50:03,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:50:03,926 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 477 transitions. [2020-10-29 04:50:03,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:50:03,926 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 477 transitions. [2020-10-29 04:50:03,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-29 04:50:03,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:50:03,929 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:50:03,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:50:03,930 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:50:03,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:50:03,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1461819276, now seen corresponding path program 1 times [2020-10-29 04:50:03,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:50:03,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [269127137] [2020-10-29 04:50:03,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:50:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:03,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:04,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:04,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:05,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:05,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 04:50:05,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:50:05,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1270 [2020-10-29 04:50:05,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:05,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:05,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:50:05,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-29 04:50:05,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-29 04:50:05,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:50:05,615 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 04:50:05,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:50:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:05,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:05,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:05,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:50:05,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:05,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:50:05,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:05,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:05,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:50:05,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:05,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:50:05,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:05,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:50:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:05,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:05,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:05,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 04:50:05,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:05,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 04:50:05,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:05,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:05,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:50:05,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:05,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 04:50:05,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:05,852 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:50:05,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [269127137] [2020-10-29 04:50:05,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:50:05,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:50:05,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014767087] [2020-10-29 04:50:05,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:50:05,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:50:05,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:50:05,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:50:05,855 INFO L87 Difference]: Start difference. First operand 320 states and 477 transitions. Second operand 5 states. [2020-10-29 04:50:06,282 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 04:50:07,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:50:07,546 INFO L93 Difference]: Finished difference Result 728 states and 1124 transitions. [2020-10-29 04:50:07,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:50:07,552 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-10-29 04:50:07,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:50:07,556 INFO L225 Difference]: With dead ends: 728 [2020-10-29 04:50:07,557 INFO L226 Difference]: Without dead ends: 328 [2020-10-29 04:50:07,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:50:07,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-10-29 04:50:07,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 320. [2020-10-29 04:50:07,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-10-29 04:50:07,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 469 transitions. [2020-10-29 04:50:07,575 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 469 transitions. Word has length 149 [2020-10-29 04:50:07,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:50:07,575 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 469 transitions. [2020-10-29 04:50:07,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:50:07,575 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 469 transitions. [2020-10-29 04:50:07,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-29 04:50:07,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:50:07,578 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:50:07,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:50:07,578 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:50:07,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:50:07,579 INFO L82 PathProgramCache]: Analyzing trace with hash -468603460, now seen corresponding path program 1 times [2020-10-29 04:50:07,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:50:07,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611307546] [2020-10-29 04:50:07,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:50:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:07,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:07,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:08,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:08,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:08,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:08,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-29 04:50:08,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:50:08,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1370 [2020-10-29 04:50:08,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:08,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:08,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:50:08,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-29 04:50:08,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-29 04:50:08,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:50:09,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:50:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:09,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:09,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:09,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:50:09,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:09,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:50:09,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:09,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:09,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:50:09,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:09,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:50:09,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 04:50:09,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:50:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:09,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:09,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:09,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-29 04:50:09,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:09,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 04:50:09,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:09,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:50:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:09,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 04:50:09,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:50:09,241 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:50:09,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611307546] [2020-10-29 04:50:09,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:50:09,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:50:09,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162770328] [2020-10-29 04:50:09,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:50:09,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:50:09,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:50:09,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:50:09,246 INFO L87 Difference]: Start difference. First operand 320 states and 469 transitions. Second operand 5 states. [2020-10-29 04:50:10,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:50:10,904 INFO L93 Difference]: Finished difference Result 936 states and 1396 transitions. [2020-10-29 04:50:10,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:50:10,905 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2020-10-29 04:50:10,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:50:10,909 INFO L225 Difference]: With dead ends: 936 [2020-10-29 04:50:10,909 INFO L226 Difference]: Without dead ends: 622 [2020-10-29 04:50:10,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:50:10,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2020-10-29 04:50:10,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 472. [2020-10-29 04:50:10,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2020-10-29 04:50:10,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 639 transitions. [2020-10-29 04:50:10,936 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 639 transitions. Word has length 153 [2020-10-29 04:50:10,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:50:10,936 INFO L481 AbstractCegarLoop]: Abstraction has 472 states and 639 transitions. [2020-10-29 04:50:10,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:50:10,937 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 639 transitions. [2020-10-29 04:50:10,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-29 04:50:10,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:50:10,940 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:50:10,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:50:10,941 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:50:10,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:50:10,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1685667220, now seen corresponding path program 1 times [2020-10-29 04:50:10,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:50:10,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012012988] [2020-10-29 04:50:10,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:50:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:10,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:11,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:11,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:11,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:12,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:12,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-29 04:50:12,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:50:12,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1465 [2020-10-29 04:50:12,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:12,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:12,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:50:12,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-29 04:50:12,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-29 04:50:12,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:12,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:50:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:12,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:12,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:12,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:50:12,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:12,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 04:50:12,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:12,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:12,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:50:12,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:12,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:50:12,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:50:12,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:50:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:12,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:12,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:12,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 04:50:12,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:12,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 04:50:12,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:12,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:12,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:50:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 04:50:12,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:50:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:50:12,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012012988] [2020-10-29 04:50:12,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:50:12,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:50:12,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976109742] [2020-10-29 04:50:12,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:50:12,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:50:12,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:50:12,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:50:12,803 INFO L87 Difference]: Start difference. First operand 472 states and 639 transitions. Second operand 5 states. [2020-10-29 04:50:12,940 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-29 04:50:14,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:50:14,433 INFO L93 Difference]: Finished difference Result 1388 states and 1927 transitions. [2020-10-29 04:50:14,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:50:14,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2020-10-29 04:50:14,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:50:14,441 INFO L225 Difference]: With dead ends: 1388 [2020-10-29 04:50:14,441 INFO L226 Difference]: Without dead ends: 922 [2020-10-29 04:50:14,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 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 04:50:14,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2020-10-29 04:50:14,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 913. [2020-10-29 04:50:14,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2020-10-29 04:50:14,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1230 transitions. [2020-10-29 04:50:14,493 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1230 transitions. Word has length 165 [2020-10-29 04:50:14,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:50:14,494 INFO L481 AbstractCegarLoop]: Abstraction has 913 states and 1230 transitions. [2020-10-29 04:50:14,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:50:14,494 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1230 transitions. [2020-10-29 04:50:14,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-29 04:50:14,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:50:14,500 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:50:14,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:50:14,501 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:50:14,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:50:14,502 INFO L82 PathProgramCache]: Analyzing trace with hash 62253632, now seen corresponding path program 1 times [2020-10-29 04:50:14,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:50:14,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [387651020] [2020-10-29 04:50:14,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:50:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:14,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:14,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:14,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:15,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:15,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:16,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:16,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-29 04:50:16,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:50:16,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1728 [2020-10-29 04:50:16,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:16,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:50:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 04:50:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 04:50:16,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:16,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:50:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:16,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:16,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:16,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:50:16,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:16,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:50:16,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:16,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:16,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:50:16,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:16,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:50:16,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:16,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:50:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:16,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:16,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:16,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:16,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 04:50:16,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:50:16,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-29 04:50:16,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:16,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:16,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:50:16,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:16,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 04:50:16,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:50:16,716 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:50:16,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [387651020] [2020-10-29 04:50:16,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:50:16,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:50:16,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407031624] [2020-10-29 04:50:16,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:50:16,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:50:16,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:50:16,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:50:16,720 INFO L87 Difference]: Start difference. First operand 913 states and 1230 transitions. Second operand 5 states. [2020-10-29 04:50:17,019 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 04:50:18,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:50:18,622 INFO L93 Difference]: Finished difference Result 2410 states and 3294 transitions. [2020-10-29 04:50:18,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:50:18,623 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2020-10-29 04:50:18,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:50:18,624 INFO L225 Difference]: With dead ends: 2410 [2020-10-29 04:50:18,624 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 04:50:18,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 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 04:50:18,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 04:50:18,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 04:50:18,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 04:50:18,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 04:50:18,632 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2020-10-29 04:50:18,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:50:18,632 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 04:50:18,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:50:18,633 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 04:50:18,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 04:50:18,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 04:50:18,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 04:50:19,109 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 34 [2020-10-29 04:50:19,265 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 34 [2020-10-29 04:50:19,880 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 31 [2020-10-29 04:50:20,121 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 04:50:20,122 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 04:50:20,122 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 04:50:20,122 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 04:50:20,122 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:50:20,123 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|)) [2020-10-29 04:50:20,123 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:50:20,123 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-29 04:50:20,123 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-29 04:50:20,123 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-29 04:50:20,123 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-29 04:50:20,123 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-29 04:50:20,124 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-29 04:50:20,124 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-29 04:50:20,124 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-29 04:50:20,124 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-29 04:50:20,124 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-29 04:50:20,124 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-29 04:50:20,124 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-29 04:50:20,124 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-29 04:50:20,125 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-29 04:50:20,125 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-29 04:50:20,125 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,125 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,125 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,125 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,125 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,125 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-29 04:50:20,125 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-29 04:50:20,125 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-29 04:50:20,126 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-29 04:50:20,126 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-29 04:50:20,126 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-29 04:50:20,126 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-29 04:50:20,126 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-29 04:50:20,126 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-29 04:50:20,126 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-29 04:50:20,126 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-29 04:50:20,126 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-29 04:50:20,127 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-29 04:50:20,127 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,127 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,127 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,127 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,127 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-29 04:50:20,127 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,127 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-29 04:50:20,127 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-29 04:50:20,128 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-29 04:50:20,128 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-29 04:50:20,128 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-29 04:50:20,128 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-29 04:50:20,128 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-29 04:50:20,128 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-29 04:50:20,128 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-29 04:50:20,128 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-29 04:50:20,128 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-29 04:50:20,129 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-29 04:50:20,129 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-29 04:50:20,129 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-29 04:50:20,129 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-29 04:50:20,129 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,129 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,129 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,129 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,129 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,130 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-29 04:50:20,130 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-29 04:50:20,130 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-29 04:50:20,130 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-29 04:50:20,130 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-29 04:50:20,130 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-29 04:50:20,130 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-29 04:50:20,130 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-29 04:50:20,131 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-29 04:50:20,131 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-29 04:50:20,131 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-29 04:50:20,131 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,131 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,131 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,131 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,131 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,131 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-29 04:50:20,132 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-29 04:50:20,132 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-29 04:50:20,132 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-29 04:50:20,132 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-29 04:50:20,132 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-29 04:50:20,132 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-29 04:50:20,132 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-29 04:50:20,132 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-29 04:50:20,132 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-29 04:50:20,132 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-29 04:50:20,133 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-29 04:50:20,133 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-29 04:50:20,133 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,133 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,133 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,133 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,133 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,133 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-29 04:50:20,133 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-29 04:50:20,134 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-29 04:50:20,134 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-29 04:50:20,134 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-29 04:50:20,134 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-29 04:50:20,134 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-29 04:50:20,134 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-29 04:50:20,134 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-29 04:50:20,134 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,134 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,135 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-29 04:50:20,135 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-29 04:50:20,135 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-29 04:50:20,135 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-29 04:50:20,135 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-29 04:50:20,135 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-29 04:50:20,135 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-29 04:50:20,135 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,135 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,136 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,136 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,136 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-29 04:50:20,136 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,136 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-29 04:50:20,136 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,136 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-29 04:50:20,136 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-29 04:50:20,136 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-29 04:50:20,137 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-29 04:50:20,137 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-29 04:50:20,137 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-29 04:50:20,137 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-29 04:50:20,137 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-29 04:50:20,137 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-29 04:50:20,137 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-29 04:50:20,137 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-29 04:50:20,137 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-29 04:50:20,137 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-29 04:50:20,138 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-29 04:50:20,138 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,138 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,138 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,138 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,138 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,138 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,138 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-29 04:50:20,138 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-29 04:50:20,139 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-29 04:50:20,139 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-29 04:50:20,139 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-29 04:50:20,139 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-29 04:50:20,139 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-29 04:50:20,139 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-29 04:50:20,139 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-29 04:50:20,139 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-29 04:50:20,139 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-29 04:50:20,139 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,140 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,140 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,140 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,140 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,140 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,140 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-29 04:50:20,140 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-29 04:50:20,140 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-29 04:50:20,140 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-29 04:50:20,140 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-29 04:50:20,141 INFO L270 CegarLoopResult]: At program point L522(line 522) the Hoare annotation is: (and (not (<= 8 |old(~a17~0)|)) (= |old(~a25~0)| 1) (not (<= 10 |old(~a28~0)|)) (not (= |old(~a11~0)| 1))) [2020-10-29 04:50:20,141 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-29 04:50:20,141 INFO L274 CegarLoopResult]: For program point L522-1(line 522) no Hoare annotation was computed. [2020-10-29 04:50:20,141 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse0 (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a19~0 |old(~a19~0)|)))) (and (or .cse0 (= |old(~a25~0)| 1)) (or .cse0 (not (= |old(~a11~0)| 1))) (or .cse0 (not (<= 10 |old(~a28~0)|))) (or (not (<= 8 |old(~a17~0)|)) .cse0))) [2020-10-29 04:50:20,141 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-29 04:50:20,141 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-29 04:50:20,142 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-29 04:50:20,142 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-29 04:50:20,142 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-29 04:50:20,142 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-29 04:50:20,142 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-29 04:50:20,142 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,142 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,142 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,142 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,142 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,143 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,143 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-29 04:50:20,143 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-29 04:50:20,143 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-29 04:50:20,143 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-29 04:50:20,143 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-29 04:50:20,143 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-29 04:50:20,143 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-29 04:50:20,143 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-29 04:50:20,143 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-29 04:50:20,144 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-29 04:50:20,144 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-29 04:50:20,144 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-29 04:50:20,144 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-29 04:50:20,144 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,144 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,144 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,144 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,144 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,144 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,145 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-29 04:50:20,145 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-29 04:50:20,145 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-29 04:50:20,145 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-29 04:50:20,145 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-29 04:50:20,145 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-29 04:50:20,145 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-29 04:50:20,145 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-29 04:50:20,145 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-29 04:50:20,145 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-29 04:50:20,146 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-29 04:50:20,146 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-29 04:50:20,146 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-29 04:50:20,146 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-29 04:50:20,146 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-29 04:50:20,146 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-29 04:50:20,146 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,146 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,146 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,146 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,147 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:20,147 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-29 04:50:20,147 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-29 04:50:20,147 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-29 04:50:20,147 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-29 04:50:20,147 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:50:20,147 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 8 ~a17~0) (not (= ~a25~0 1))) [2020-10-29 04:50:20,148 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 04:50:20,148 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:50:20,148 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (or (not (<= 8 |old(~a17~0)|)) (<= 10 ~a28~0) (= |old(~a25~0)| 1) (<= 8 ~a17~0) (= ~a11~0 1) (not (= ~a25~0 1))) [2020-10-29 04:50:20,148 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (<= 8 |old(~a17~0)|)) (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a19~0 |old(~a19~0)|)) (= |old(~a25~0)| 1)) [2020-10-29 04:50:20,148 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-29 04:50:20,148 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-29 04:50:20,148 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (or (not (<= 8 |old(~a17~0)|)) (<= 10 ~a28~0) (= |old(~a25~0)| 1) (<= 8 ~a17~0) (= ~a11~0 1) (not (= ~a25~0 1))) [2020-10-29 04:50:20,149 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-29 04:50:20,149 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-29 04:50:20,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:50:20 BoogieIcfgContainer [2020-10-29 04:50:20,169 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 04:50:20,171 INFO L168 Benchmark]: Toolchain (without parser) took 32502.02 ms. Allocated memory was 166.7 MB in the beginning and 506.5 MB in the end (delta: 339.7 MB). Free memory was 147.6 MB in the beginning and 259.1 MB in the end (delta: -111.4 MB). Peak memory consumption was 306.5 MB. Max. memory is 8.0 GB. [2020-10-29 04:50:20,172 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 166.7 MB. Free memory is still 139.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:50:20,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 824.53 ms. Allocated memory is still 166.7 MB. Free memory was 147.0 MB in the beginning and 139.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 19.4 MB. Max. memory is 8.0 GB. [2020-10-29 04:50:20,174 INFO L168 Benchmark]: Boogie Preprocessor took 167.61 ms. Allocated memory is still 166.7 MB. Free memory was 139.8 MB in the beginning and 135.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:50:20,175 INFO L168 Benchmark]: RCFGBuilder took 1439.96 ms. Allocated memory is still 166.7 MB. Free memory was 135.2 MB in the beginning and 80.3 MB in the end (delta: 54.8 MB). Peak memory consumption was 55.9 MB. Max. memory is 8.0 GB. [2020-10-29 04:50:20,175 INFO L168 Benchmark]: TraceAbstraction took 30050.28 ms. Allocated memory was 166.7 MB in the beginning and 506.5 MB in the end (delta: 339.7 MB). Free memory was 79.8 MB in the beginning and 259.1 MB in the end (delta: -179.3 MB). Peak memory consumption was 238.6 MB. Max. memory is 8.0 GB. [2020-10-29 04:50:20,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 166.7 MB. Free memory is still 139.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 824.53 ms. Allocated memory is still 166.7 MB. Free memory was 147.0 MB in the beginning and 139.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 19.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 167.61 ms. Allocated memory is still 166.7 MB. Free memory was 139.8 MB in the beginning and 135.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1439.96 ms. Allocated memory is still 166.7 MB. Free memory was 135.2 MB in the beginning and 80.3 MB in the end (delta: 54.8 MB). Peak memory consumption was 55.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 30050.28 ms. Allocated memory was 166.7 MB in the beginning and 506.5 MB in the end (delta: 339.7 MB). Free memory was 79.8 MB in the beginning and 259.1 MB in the end (delta: -179.3 MB). Peak memory consumption was 238.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: ((((!(8 <= \old(a17)) || 10 <= a28) || \old(a25) == 1) || 8 <= a17) || a11 == 1) || !(a25 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.4s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 260 SDtfs, 1913 SDslu, 251 SDs, 0 SdLazy, 5084 SolverSat, 699 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=913occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 191 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 79 PreInvPairs, 109 NumberOfFragments, 258 HoareAnnotationTreeSize, 79 FomulaSimplifications, 65274 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 9 FomulaSimplificationsInter, 1795 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 13.6s InterpolantComputationTime, 1054 NumberOfCodeBlocks, 1054 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1047 ConstructedInterpolants, 0 QuantifiedInterpolants, 1602057 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 167/173 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...