/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_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:49:27,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:49:27,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:49:27,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:49:27,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:49:27,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:49:27,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:49:27,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:49:27,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:49:27,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:49:27,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:49:27,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:49:27,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:49:27,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:49:27,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:49:27,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:49:27,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:49:27,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:49:27,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:49:27,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:49:27,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:49:27,101 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:49:27,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:49:27,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:49:27,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:49:27,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:49:27,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:49:27,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:49:27,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:49:27,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:49:27,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:49:27,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:49:27,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:49:27,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:49:27,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:49:27,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:49:27,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:49:27,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:49:27,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:49:27,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:49:27,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:49:27,139 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 04:49:27,198 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:49:27,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:49:27,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:49:27,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:49:27,202 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:49:27,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:49:27,202 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:49:27,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:49:27,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:49:27,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:49:27,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:49:27,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:49:27,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:49:27,207 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:49:27,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:49:27,208 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:49:27,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:49:27,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:49:27,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:49:27,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:49:27,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:49:27,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:49:27,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:49:27,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:49:27,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:49:27,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:49:27,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:49:27,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:49:27,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:49:27,211 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:49:27,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:49:27,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:49:27,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:49:27,689 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:49:27,689 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:49:27,691 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label24.c [2020-10-29 04:49:27,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e65f272ff/94c754912d734d1b8faa7016b9b2e9ad/FLAG089549448 [2020-10-29 04:49:28,582 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:49:28,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label24.c [2020-10-29 04:49:28,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e65f272ff/94c754912d734d1b8faa7016b9b2e9ad/FLAG089549448 [2020-10-29 04:49:28,821 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e65f272ff/94c754912d734d1b8faa7016b9b2e9ad [2020-10-29 04:49:28,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:49:28,837 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:49:28,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:49:28,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:49:28,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:49:28,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:49:28" (1/1) ... [2020-10-29 04:49:28,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ceb0f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:28, skipping insertion in model container [2020-10-29 04:49:28,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:49:28" (1/1) ... [2020-10-29 04:49:28,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:49:28,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:49:29,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:49:29,331 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:49:29,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:49:29,577 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:49:29,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:29 WrapperNode [2020-10-29 04:49:29,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:49:29,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:49:29,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:49:29,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:49:29,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:29" (1/1) ... [2020-10-29 04:49:29,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:29" (1/1) ... [2020-10-29 04:49:29,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:29" (1/1) ... [2020-10-29 04:49:29,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:29" (1/1) ... [2020-10-29 04:49:29,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:29" (1/1) ... [2020-10-29 04:49:29,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:29" (1/1) ... [2020-10-29 04:49:29,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:29" (1/1) ... [2020-10-29 04:49:29,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:49:29,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:49:29,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:49:29,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:49:29,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:29" (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 04:49:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:49:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:49:29,843 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:49:29,843 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 04:49:29,843 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:49:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 04:49:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:49:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:49:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:49:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:49:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:49:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 04:49:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:49:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:49:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:49:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:49:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:49:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:49:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:49:31,051 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:49:31,051 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 04:49:31,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:49:31 BoogieIcfgContainer [2020-10-29 04:49:31,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:49:31,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:49:31,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:49:31,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:49:31,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:49:28" (1/3) ... [2020-10-29 04:49:31,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8aa852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:49:31, skipping insertion in model container [2020-10-29 04:49:31,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:29" (2/3) ... [2020-10-29 04:49:31,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8aa852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:49:31, skipping insertion in model container [2020-10-29 04:49:31,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:49:31" (3/3) ... [2020-10-29 04:49:31,067 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label24.c [2020-10-29 04:49:31,083 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:49:31,093 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:49:31,121 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:49:31,164 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:49:31,164 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:49:31,164 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:49:31,165 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:49:31,165 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:49:31,165 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:49:31,165 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:49:31,165 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:49:31,195 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-29 04:49:31,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-29 04:49:31,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:49:31,213 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] [2020-10-29 04:49:31,214 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:49:31,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:49:31,225 INFO L82 PathProgramCache]: Analyzing trace with hash 2122287957, now seen corresponding path program 1 times [2020-10-29 04:49:31,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:49:31,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1589123774] [2020-10-29 04:49:31,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:49:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:31,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:32,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:33,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:33,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-29 04:49:33,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:49:33,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2084 [2020-10-29 04:49:33,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:33,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:33,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:49:33,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:49:33,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 04:49:33,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 04:49:33,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:49:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:34,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:34,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:34,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:49:34,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:49:34,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 04:49:34,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:34,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:34,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:49:34,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:49:34,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:49:34,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:49:34,123 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 04:49:34,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1589123774] [2020-10-29 04:49:34,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:49:34,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 04:49:34,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441312042] [2020-10-29 04:49:34,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:49:34,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:49:34,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:49:34,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:49:34,167 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-29 04:49:36,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:49:36,282 INFO L93 Difference]: Finished difference Result 632 states and 1079 transitions. [2020-10-29 04:49:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:49:36,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2020-10-29 04:49:36,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:49:36,304 INFO L225 Difference]: With dead ends: 632 [2020-10-29 04:49:36,304 INFO L226 Difference]: Without dead ends: 328 [2020-10-29 04:49:36,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:49:36,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-10-29 04:49:36,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 320. [2020-10-29 04:49:36,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-10-29 04:49:36,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 481 transitions. [2020-10-29 04:49:36,402 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 481 transitions. Word has length 121 [2020-10-29 04:49:36,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:49:36,403 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 481 transitions. [2020-10-29 04:49:36,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:49:36,404 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 481 transitions. [2020-10-29 04:49:36,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-29 04:49:36,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:49:36,416 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] [2020-10-29 04:49:36,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:49:36,417 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:49:36,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:49:36,417 INFO L82 PathProgramCache]: Analyzing trace with hash 543051970, now seen corresponding path program 1 times [2020-10-29 04:49:36,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:49:36,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080785978] [2020-10-29 04:49:36,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:49:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:36,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:36,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:37,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:37,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:37,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-29 04:49:37,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:49:37,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1451 [2020-10-29 04:49:37,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:37,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:37,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:49:37,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 04:49:37,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-29 04:49:37,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:49:38,333 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 04:49:38,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:49:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:38,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:38,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:38,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:49:38,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:49:38,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 04:49:38,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:38,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:49:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:49:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:49:38,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:49:38,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:49:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:38,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:38,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:38,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:49:38,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:49:38,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 04:49:38,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:38,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:38,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:49:38,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:49:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 04:49:38,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:49:38,611 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 04:49:38,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080785978] [2020-10-29 04:49:38,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:49:38,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:49:38,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877850651] [2020-10-29 04:49:38,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:49:38,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:49:38,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:49:38,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:49:38,616 INFO L87 Difference]: Start difference. First operand 320 states and 481 transitions. Second operand 5 states. [2020-10-29 04:49:38,978 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-29 04:49:40,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:49:40,493 INFO L93 Difference]: Finished difference Result 739 states and 1145 transitions. [2020-10-29 04:49:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:49:40,494 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 136 [2020-10-29 04:49:40,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:49:40,499 INFO L225 Difference]: With dead ends: 739 [2020-10-29 04:49:40,499 INFO L226 Difference]: Without dead ends: 328 [2020-10-29 04:49:40,501 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 04:49:40,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-10-29 04:49:40,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 320. [2020-10-29 04:49:40,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-10-29 04:49:40,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 479 transitions. [2020-10-29 04:49:40,556 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 479 transitions. Word has length 136 [2020-10-29 04:49:40,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:49:40,560 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 479 transitions. [2020-10-29 04:49:40,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:49:40,560 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 479 transitions. [2020-10-29 04:49:40,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-29 04:49:40,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:49:40,568 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] [2020-10-29 04:49:40,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:49:40,568 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:49:40,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:49:40,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1515063780, now seen corresponding path program 1 times [2020-10-29 04:49:40,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:49:40,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759506839] [2020-10-29 04:49:40,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:49:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:40,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:40,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:41,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:41,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:41,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-29 04:49:41,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:49:41,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1286 [2020-10-29 04:49:41,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:41,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:41,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:49:41,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-29 04:49:41,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-29 04:49:41,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 04:49:42,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:49:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:42,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:42,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:42,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:49:42,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:49:42,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:49:42,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:42,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:42,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:49:42,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:49:42,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:49:42,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:49:42,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:49:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:42,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:42,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:42,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 04:49:42,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:49:42,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 04:49:42,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:42,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:42,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:49:42,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:49:42,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 04:49:42,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:49:42,344 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 04:49:42,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759506839] [2020-10-29 04:49:42,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:49:42,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:49:42,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145140253] [2020-10-29 04:49:42,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:49:42,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:49:42,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:49:42,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:49:42,351 INFO L87 Difference]: Start difference. First operand 320 states and 479 transitions. Second operand 5 states. [2020-10-29 04:49:42,783 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 04:49:44,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:49:44,106 INFO L93 Difference]: Finished difference Result 731 states and 1132 transitions. [2020-10-29 04:49:44,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:49:44,107 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-10-29 04:49:44,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:49:44,112 INFO L225 Difference]: With dead ends: 731 [2020-10-29 04:49:44,112 INFO L226 Difference]: Without dead ends: 328 [2020-10-29 04:49:44,118 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 04:49:44,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-10-29 04:49:44,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 320. [2020-10-29 04:49:44,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-10-29 04:49:44,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 477 transitions. [2020-10-29 04:49:44,167 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 477 transitions. Word has length 143 [2020-10-29 04:49:44,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:49:44,169 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 477 transitions. [2020-10-29 04:49:44,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:49:44,169 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 477 transitions. [2020-10-29 04:49:44,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-29 04:49:44,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:49:44,177 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] [2020-10-29 04:49:44,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:49:44,177 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:49:44,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:49:44,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1678926124, now seen corresponding path program 1 times [2020-10-29 04:49:44,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:49:44,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144314260] [2020-10-29 04:49:44,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:49:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:44,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:44,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:44,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:45,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:45,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-29 04:49:45,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:49:45,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1355 [2020-10-29 04:49:45,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:45,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:45,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:49:45,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-29 04:49:45,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-29 04:49:45,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:49:45,989 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 04:49:45,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:49:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:45,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:46,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:46,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:49:46,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:49:46,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 04:49:46,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:46,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:46,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:49:46,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:49:46,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:49:46,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:49:46,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:49:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:46,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:46,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:46,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 04:49:46,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:49:46,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 04:49:46,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:46,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:49:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:49:46,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 04:49:46,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:49:46,302 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 04:49:46,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144314260] [2020-10-29 04:49:46,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:49:46,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:49:46,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121006368] [2020-10-29 04:49:46,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:49:46,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:49:46,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:49:46,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:49:46,307 INFO L87 Difference]: Start difference. First operand 320 states and 477 transitions. Second operand 5 states. [2020-10-29 04:49:46,753 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 04:49:48,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:49:48,030 INFO L93 Difference]: Finished difference Result 728 states and 1124 transitions. [2020-10-29 04:49:48,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:49:48,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2020-10-29 04:49:48,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:49:48,035 INFO L225 Difference]: With dead ends: 728 [2020-10-29 04:49:48,036 INFO L226 Difference]: Without dead ends: 328 [2020-10-29 04:49:48,037 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 04:49:48,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-10-29 04:49:48,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 320. [2020-10-29 04:49:48,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-10-29 04:49:48,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 469 transitions. [2020-10-29 04:49:48,066 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 469 transitions. Word has length 147 [2020-10-29 04:49:48,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:49:48,066 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 469 transitions. [2020-10-29 04:49:48,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:49:48,066 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 469 transitions. [2020-10-29 04:49:48,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-29 04:49:48,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:49:48,069 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] [2020-10-29 04:49:48,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:49:48,069 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:49:48,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:49:48,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1684428916, now seen corresponding path program 1 times [2020-10-29 04:49:48,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:49:48,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3990875] [2020-10-29 04:49:48,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:49:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:48,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:48,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:48,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:49,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:49,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:49,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 04:49:49,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:49:49,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1418 [2020-10-29 04:49:49,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:49,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:49:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-29 04:49:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 04:49:49,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:49:49,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:49:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:49,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:49,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:49,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:49:49,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:49:49,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:49:49,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:49,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:49,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:49:49,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:49:49,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:49:49,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:49:49,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:49:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:49,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:49,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:49,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-29 04:49:49,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:49:49,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 04:49:49,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:49,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:49:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:49:49,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 04:49:49,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 04:49:49,844 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 04:49:49,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3990875] [2020-10-29 04:49:49,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:49:49,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:49:49,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004190312] [2020-10-29 04:49:49,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:49:49,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:49:49,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:49:49,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:49:49,851 INFO L87 Difference]: Start difference. First operand 320 states and 469 transitions. Second operand 5 states. [2020-10-29 04:49:51,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:49:51,663 INFO L93 Difference]: Finished difference Result 941 states and 1412 transitions. [2020-10-29 04:49:51,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:49:51,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-10-29 04:49:51,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:49:51,669 INFO L225 Difference]: With dead ends: 941 [2020-10-29 04:49:51,669 INFO L226 Difference]: Without dead ends: 627 [2020-10-29 04:49:51,671 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 04:49:51,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2020-10-29 04:49:51,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 617. [2020-10-29 04:49:51,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2020-10-29 04:49:51,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 820 transitions. [2020-10-29 04:49:51,705 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 820 transitions. Word has length 151 [2020-10-29 04:49:51,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:49:51,706 INFO L481 AbstractCegarLoop]: Abstraction has 617 states and 820 transitions. [2020-10-29 04:49:51,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:49:51,706 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 820 transitions. [2020-10-29 04:49:51,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-29 04:49:51,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:49:51,710 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] [2020-10-29 04:49:51,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:49:51,711 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:49:51,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:49:51,711 INFO L82 PathProgramCache]: Analyzing trace with hash 211811916, now seen corresponding path program 1 times [2020-10-29 04:49:51,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:49:51,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20062326] [2020-10-29 04:49:51,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:49:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:51,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:51,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:51,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:53,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:54,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:54,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-29 04:49:54,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:49:54,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2265 [2020-10-29 04:49:54,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:54,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:49:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-29 04:49:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 04:49:54,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:49:54,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:49:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:54,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:54,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:54,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:49:54,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:49:54,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:49:54,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:54,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:54,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:49:54,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:49:54,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:49:54,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:49:54,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:49:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:54,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:54,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:54,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 04:49:54,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:49:54,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 04:49:54,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:54,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:54,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:49:54,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:49:54,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 04:49:54,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:49:54,295 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 04:49:54,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20062326] [2020-10-29 04:49:54,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:49:54,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:49:54,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778707173] [2020-10-29 04:49:54,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:49:54,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:49:54,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:49:54,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:49:54,299 INFO L87 Difference]: Start difference. First operand 617 states and 820 transitions. Second operand 5 states. [2020-10-29 04:49:55,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:49:55,884 INFO L93 Difference]: Finished difference Result 1673 states and 2300 transitions. [2020-10-29 04:49:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:49:55,884 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 163 [2020-10-29 04:49:55,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:49:55,891 INFO L225 Difference]: With dead ends: 1673 [2020-10-29 04:49:55,892 INFO L226 Difference]: Without dead ends: 1062 [2020-10-29 04:49:55,894 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 04:49:55,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2020-10-29 04:49:55,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1057. [2020-10-29 04:49:55,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2020-10-29 04:49:55,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1359 transitions. [2020-10-29 04:49:55,942 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1359 transitions. Word has length 163 [2020-10-29 04:49:55,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:49:55,943 INFO L481 AbstractCegarLoop]: Abstraction has 1057 states and 1359 transitions. [2020-10-29 04:49:55,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:49:55,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1359 transitions. [2020-10-29 04:49:55,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-29 04:49:55,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:49:55,948 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:49:55,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:49:55,949 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:49:55,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:49:55,949 INFO L82 PathProgramCache]: Analyzing trace with hash 2072214307, now seen corresponding path program 1 times [2020-10-29 04:49:55,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:49:55,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242747645] [2020-10-29 04:49:55,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:49:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:49:55,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:56,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:56,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:57,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:49:59,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:49:59,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-29 04:49:59,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:49:59,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3948 [2020-10-29 04:49:59,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:49:59,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:49:59,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:49:59,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-29 04:49:59,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 04:49:59,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:00,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:50:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:00,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:00,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:00,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:50:00,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:00,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:50:00,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:00,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:00,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:50:00,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:00,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:50:00,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:00,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:50:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:00,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:00,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:00,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:50:00,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:00,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:50:00,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:00,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:00,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:50:00,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:00,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:50:00,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:00,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 04:50:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:00,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:00,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:00,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 04:50:00,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:00,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 04:50:00,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:00,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:00,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:50:00,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:00,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 04:50:00,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:00,255 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 71 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 04:50:00,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [242747645] [2020-10-29 04:50:00,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:50:00,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:50:00,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115318326] [2020-10-29 04:50:00,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:50:00,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:50:00,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:50:00,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:50:00,258 INFO L87 Difference]: Start difference. First operand 1057 states and 1359 transitions. Second operand 5 states. [2020-10-29 04:50:00,472 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 04:50:01,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:50:01,994 INFO L93 Difference]: Finished difference Result 2548 states and 3333 transitions. [2020-10-29 04:50:01,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:50:01,999 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 199 [2020-10-29 04:50:01,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:50:02,000 INFO L225 Difference]: With dead ends: 2548 [2020-10-29 04:50:02,000 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 04:50:02,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 04:50:02,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 04:50:02,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 04:50:02,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 04:50:02,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 04:50:02,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 199 [2020-10-29 04:50:02,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:50:02,008 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 04:50:02,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:50:02,009 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 04:50:02,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 04:50:02,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 04:50:02,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 04:50:02,412 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 40 [2020-10-29 04:50:02,578 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 40 [2020-10-29 04:50:03,147 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 31 [2020-10-29 04:50:03,378 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 04:50:03,378 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 04:50:03,378 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 04:50:03,379 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 04:50:03,379 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:50:03,379 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 04:50:03,379 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:50:03,379 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-29 04:50:03,379 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-29 04:50:03,380 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-29 04:50:03,380 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-29 04:50:03,380 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-29 04:50:03,380 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-29 04:50:03,380 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-29 04:50:03,380 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-29 04:50:03,380 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-29 04:50:03,380 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-29 04:50:03,381 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-29 04:50:03,381 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-29 04:50:03,381 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-29 04:50:03,381 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-29 04:50:03,381 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-29 04:50:03,381 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,381 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,381 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,381 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,381 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,382 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-29 04:50:03,382 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-29 04:50:03,382 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-29 04:50:03,382 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-29 04:50:03,382 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-29 04:50:03,382 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-29 04:50:03,382 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-29 04:50:03,382 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-29 04:50:03,382 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-29 04:50:03,383 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-29 04:50:03,383 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-29 04:50:03,383 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-29 04:50:03,383 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-29 04:50:03,383 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,383 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,383 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,383 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,384 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-29 04:50:03,384 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,384 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-29 04:50:03,384 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-29 04:50:03,384 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-29 04:50:03,384 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-29 04:50:03,384 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-29 04:50:03,384 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-29 04:50:03,384 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-29 04:50:03,384 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-29 04:50:03,385 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-29 04:50:03,385 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-29 04:50:03,385 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-29 04:50:03,385 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-29 04:50:03,385 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-29 04:50:03,385 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-29 04:50:03,385 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-29 04:50:03,385 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,385 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,386 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,386 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,386 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,386 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-29 04:50:03,386 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-29 04:50:03,386 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-29 04:50:03,386 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-29 04:50:03,386 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-29 04:50:03,386 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-29 04:50:03,386 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-29 04:50:03,387 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-29 04:50:03,387 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-29 04:50:03,387 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-29 04:50:03,387 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-29 04:50:03,387 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,387 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,387 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,387 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,387 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,388 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-29 04:50:03,388 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-29 04:50:03,388 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-29 04:50:03,388 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-29 04:50:03,388 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-29 04:50:03,388 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-29 04:50:03,388 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-29 04:50:03,388 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-29 04:50:03,388 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-29 04:50:03,388 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-29 04:50:03,389 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-29 04:50:03,389 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-29 04:50:03,389 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-29 04:50:03,389 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,389 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,389 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,389 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,389 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,389 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-29 04:50:03,390 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-29 04:50:03,390 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-29 04:50:03,390 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-29 04:50:03,390 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-29 04:50:03,390 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-29 04:50:03,390 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-29 04:50:03,390 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-29 04:50:03,390 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-29 04:50:03,390 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,390 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,390 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-29 04:50:03,391 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-29 04:50:03,391 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-29 04:50:03,391 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-29 04:50:03,391 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-29 04:50:03,391 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-29 04:50:03,391 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-29 04:50:03,391 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,391 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,391 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,392 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,392 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-29 04:50:03,392 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,392 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-29 04:50:03,392 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,392 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-29 04:50:03,392 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-29 04:50:03,392 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-29 04:50:03,392 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-29 04:50:03,392 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-29 04:50:03,393 INFO L270 CegarLoopResult]: At program point L516(line 516) the Hoare annotation is: (and (= |old(~a19~0)| 1) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a28~0)| 8)) (not (<= 10 |old(~a28~0)|))) [2020-10-29 04:50:03,393 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-29 04:50:03,393 INFO L274 CegarLoopResult]: For program point L516-1(line 516) no Hoare annotation was computed. [2020-10-29 04:50:03,393 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-29 04:50:03,393 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-29 04:50:03,393 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-29 04:50:03,393 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-29 04:50:03,393 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-29 04:50:03,393 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-29 04:50:03,394 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-29 04:50:03,394 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,394 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,394 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,394 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,394 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,394 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,394 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-29 04:50:03,394 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-29 04:50:03,395 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-29 04:50:03,395 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-29 04:50:03,395 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-29 04:50:03,395 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-29 04:50:03,395 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-29 04:50:03,395 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-29 04:50:03,395 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-29 04:50:03,395 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-29 04:50:03,395 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-29 04:50:03,395 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,396 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,396 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,396 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,396 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,396 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,396 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-29 04:50:03,396 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-29 04:50:03,396 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-29 04:50:03,396 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-29 04:50:03,396 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-29 04:50:03,396 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-29 04:50:03,397 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-29 04:50:03,397 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 (= |old(~a19~0)| 1) .cse0) (or .cse0 (not (<= |old(~a28~0)| 8))) (or .cse0 (not (<= 10 |old(~a28~0)|))) (or (not (<= 8 |old(~a17~0)|)) .cse0))) [2020-10-29 04:50:03,397 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-29 04:50:03,397 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-29 04:50:03,397 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-29 04:50:03,397 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-29 04:50:03,397 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-29 04:50:03,398 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-29 04:50:03,398 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-29 04:50:03,398 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,398 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,398 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,398 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,398 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,398 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,398 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-29 04:50:03,398 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-29 04:50:03,399 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-29 04:50:03,399 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-29 04:50:03,399 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-29 04:50:03,399 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-29 04:50:03,399 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-29 04:50:03,399 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-29 04:50:03,399 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-29 04:50:03,399 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-29 04:50:03,399 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-29 04:50:03,399 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-29 04:50:03,400 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-29 04:50:03,400 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,400 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,400 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,400 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,400 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,400 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,400 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-29 04:50:03,400 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-29 04:50:03,400 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-29 04:50:03,401 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-29 04:50:03,401 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-29 04:50:03,401 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-29 04:50:03,401 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-29 04:50:03,401 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-29 04:50:03,401 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-29 04:50:03,401 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-29 04:50:03,401 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-29 04:50:03,401 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-29 04:50:03,401 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-29 04:50:03,402 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-29 04:50:03,402 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-29 04:50:03,402 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-29 04:50:03,402 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,402 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,402 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,402 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,402 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:50:03,402 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-29 04:50:03,402 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-29 04:50:03,403 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-29 04:50:03,403 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-29 04:50:03,403 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:50:03,403 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 8 ~a17~0) (<= ~a28~0 8)) [2020-10-29 04:50:03,403 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 04:50:03,403 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:50:03,403 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (or (not (<= 8 |old(~a17~0)|)) (<= 10 ~a28~0) (not (<= |old(~a28~0)| 8)) (<= 8 ~a17~0) (not (= ~a19~0 1)) (<= ~a28~0 8)) [2020-10-29 04:50:03,404 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)|)) (not (<= |old(~a28~0)| 8))) [2020-10-29 04:50:03,404 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-29 04:50:03,404 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-29 04:50:03,404 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (or (not (<= 8 |old(~a17~0)|)) (<= 10 ~a28~0) (not (<= |old(~a28~0)| 8)) (<= 8 ~a17~0) (not (= ~a19~0 1)) (<= ~a28~0 8)) [2020-10-29 04:50:03,404 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-29 04:50:03,404 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-29 04:50:03,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:50:03 BoogieIcfgContainer [2020-10-29 04:50:03,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 04:50:03,427 INFO L168 Benchmark]: Toolchain (without parser) took 34595.05 ms. Allocated memory was 151.0 MB in the beginning and 544.2 MB in the end (delta: 393.2 MB). Free memory was 124.7 MB in the beginning and 422.0 MB in the end (delta: -297.3 MB). Peak memory consumption was 324.1 MB. Max. memory is 8.0 GB. [2020-10-29 04:50:03,428 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:50:03,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.91 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 131.0 MB in the end (delta: -7.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 8.0 GB. [2020-10-29 04:50:03,430 INFO L168 Benchmark]: Boogie Preprocessor took 166.31 ms. Allocated memory is still 151.0 MB. Free memory was 131.0 MB in the beginning and 126.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:50:03,431 INFO L168 Benchmark]: RCFGBuilder took 1307.09 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 104.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 82.8 MB. Max. memory is 8.0 GB. [2020-10-29 04:50:03,431 INFO L168 Benchmark]: TraceAbstraction took 32367.93 ms. Allocated memory was 151.0 MB in the beginning and 544.2 MB in the end (delta: 393.2 MB). Free memory was 103.8 MB in the beginning and 422.0 MB in the end (delta: -318.2 MB). Peak memory consumption was 302.6 MB. Max. memory is 8.0 GB. [2020-10-29 04:50:03,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 740.91 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 131.0 MB in the end (delta: -7.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 166.31 ms. Allocated memory is still 151.0 MB. Free memory was 131.0 MB in the beginning and 126.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1307.09 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 104.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 82.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 32367.93 ms. Allocated memory was 151.0 MB in the beginning and 544.2 MB in the end (delta: 393.2 MB). Free memory was 103.8 MB in the beginning and 422.0 MB in the end (delta: -318.2 MB). Peak memory consumption was 302.6 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(a28) <= 8)) || 8 <= a17) || !(a19 == 1)) || a28 <= 8 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 30.8s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 265 SDtfs, 1772 SDslu, 247 SDs, 0 SdLazy, 4953 SolverSat, 683 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1057occurred 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, 47 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 81 PreInvPairs, 109 NumberOfFragments, 260 HoareAnnotationTreeSize, 81 FomulaSimplifications, 48384 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 1720 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 16.3s InterpolantComputationTime, 1060 NumberOfCodeBlocks, 1060 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1053 ConstructedInterpolants, 0 QuantifiedInterpolants, 1463189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 191/198 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...