/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=DEEPEST --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_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 15:36:38,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:36:38,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:36:38,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:36:38,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:36:38,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:36:38,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:36:38,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:36:38,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:36:38,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:36:38,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:36:38,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:36:38,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:36:38,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:36:38,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:36:38,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:36:38,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:36:38,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:36:38,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:36:38,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:36:38,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:36:38,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:36:38,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:36:38,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:36:38,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:36:38,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:36:38,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:36:38,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:36:38,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:36:38,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:36:38,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:36:38,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:36:38,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:36:38,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:36:38,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:36:38,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:36:38,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:36:38,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:36:38,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:36:38,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:36:38,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:36:38,302 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 [2020-10-27 15:36:38,356 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:36:38,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:36:38,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:36:38,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:36:38,361 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:36:38,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:36:38,362 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:36:38,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:36:38,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:36:38,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:36:38,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:36:38,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:36:38,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:36:38,365 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:36:38,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:36:38,365 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:36:38,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:36:38,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:36:38,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:36:38,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:36:38,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:36:38,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:36:38,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:36:38,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:36:38,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:36:38,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:36:38,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:36:38,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:36:38,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:36:38,368 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:36:38,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:36:38,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:36:38,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:36:38,868 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:36:38,869 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:36:38,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label17.c [2020-10-27 15:36:38,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a3e10cfd/e592e7e7401e4a088982c107ac7ab11a/FLAG6aa5b4ddf [2020-10-27 15:36:39,801 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:36:39,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label17.c [2020-10-27 15:36:39,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a3e10cfd/e592e7e7401e4a088982c107ac7ab11a/FLAG6aa5b4ddf [2020-10-27 15:36:40,026 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a3e10cfd/e592e7e7401e4a088982c107ac7ab11a [2020-10-27 15:36:40,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:36:40,038 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:36:40,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:36:40,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:36:40,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:36:40,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:36:40" (1/1) ... [2020-10-27 15:36:40,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c575ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:40, skipping insertion in model container [2020-10-27 15:36:40,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:36:40" (1/1) ... [2020-10-27 15:36:40,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:36:40,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:36:40,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:36:40,568 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:36:40,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:36:40,777 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:36:40,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:40 WrapperNode [2020-10-27 15:36:40,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:36:40,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:36:40,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:36:40,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:36:40,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:40" (1/1) ... [2020-10-27 15:36:40,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:40" (1/1) ... [2020-10-27 15:36:40,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:40" (1/1) ... [2020-10-27 15:36:40,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:40" (1/1) ... [2020-10-27 15:36:40,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:40" (1/1) ... [2020-10-27 15:36:40,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:40" (1/1) ... [2020-10-27 15:36:40,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:40" (1/1) ... [2020-10-27 15:36:40,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:36:40,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:36:40,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:36:40,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:36:40,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:40" (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 [2020-10-27 15:36:41,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:36:41,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:36:41,002 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:36:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 15:36:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:36:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 15:36:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:36:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:36:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:36:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:36:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:36:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 15:36:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:36:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:36:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:36:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:36:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:36:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:36:41,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:36:42,366 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:36:42,366 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:36:42,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:36:42 BoogieIcfgContainer [2020-10-27 15:36:42,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:36:42,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:36:42,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:36:42,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:36:42,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:36:40" (1/3) ... [2020-10-27 15:36:42,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ff5eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:36:42, skipping insertion in model container [2020-10-27 15:36:42,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:40" (2/3) ... [2020-10-27 15:36:42,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ff5eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:36:42, skipping insertion in model container [2020-10-27 15:36:42,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:36:42" (3/3) ... [2020-10-27 15:36:42,383 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label17.c [2020-10-27 15:36:42,403 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:36:42,409 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:36:42,424 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:36:42,455 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:36:42,455 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:36:42,456 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:36:42,456 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:36:42,456 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:36:42,456 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:36:42,456 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:36:42,456 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:36:42,482 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-27 15:36:42,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-27 15:36:42,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:36:42,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:36:42,498 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:36:42,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:36:42,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1039273091, now seen corresponding path program 1 times [2020-10-27 15:36:42,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:36:42,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508440997] [2020-10-27 15:36:42,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:36:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:43,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:43,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:44,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:44,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-27 15:36:44,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:36:44,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1960 [2020-10-27 15:36:44,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:44,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 15:36:44,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 15:36:44,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 15:36:44,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:36:45,667 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41 [2020-10-27 15:36:45,837 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2020-10-27 15:36:45,991 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 36 [2020-10-27 15:36:46,136 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 31 [2020-10-27 15:36:46,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:36:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:46,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:46,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:46,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:36:46,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:36:46,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 15:36:46,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:46,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:36:46,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:36:46,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:36:46,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:36:46,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:36:46,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508440997] [2020-10-27 15:36:46,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:36:46,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 15:36:46,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868701724] [2020-10-27 15:36:46,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 15:36:46,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:36:46,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 15:36:46,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-27 15:36:46,668 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 11 states. [2020-10-27 15:36:46,896 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 15:36:47,076 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 15:36:47,245 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 15:36:47,445 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 15:36:47,894 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 119 [2020-10-27 15:36:48,316 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 116 [2020-10-27 15:36:49,175 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 112 [2020-10-27 15:36:49,850 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 107 [2020-10-27 15:36:51,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:36:51,195 INFO L93 Difference]: Finished difference Result 541 states and 898 transitions. [2020-10-27 15:36:51,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 15:36:51,201 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 126 [2020-10-27 15:36:51,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:36:51,224 INFO L225 Difference]: With dead ends: 541 [2020-10-27 15:36:51,224 INFO L226 Difference]: Without dead ends: 237 [2020-10-27 15:36:51,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-27 15:36:51,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-27 15:36:51,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 234. [2020-10-27 15:36:51,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-27 15:36:51,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 324 transitions. [2020-10-27 15:36:51,344 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 324 transitions. Word has length 126 [2020-10-27 15:36:51,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:36:51,346 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 324 transitions. [2020-10-27 15:36:51,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 15:36:51,347 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 324 transitions. [2020-10-27 15:36:51,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-27 15:36:51,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:36:51,364 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:36:51,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:36:51,366 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:36:51,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:36:51,368 INFO L82 PathProgramCache]: Analyzing trace with hash 846960476, now seen corresponding path program 1 times [2020-10-27 15:36:51,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:36:51,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327191546] [2020-10-27 15:36:51,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:36:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:51,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:51,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:52,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:53,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:53,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-27 15:36:53,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:36:53,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1966 [2020-10-27 15:36:53,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:53,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 15:36:53,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 15:36:53,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 15:36:53,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:36:53,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:36:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:53,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:53,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:53,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:36:53,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:36:53,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:36:53,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:53,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:36:53,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:36:53,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:36:53,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:36:53,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:36:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:53,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:53,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:53,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:36:53,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:36:53,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:36:53,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:53,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:36:53,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:36:53,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 15:36:53,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:36:54,100 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:36:54,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327191546] [2020-10-27 15:36:54,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:36:54,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 15:36:54,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492282319] [2020-10-27 15:36:54,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 15:36:54,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:36:54,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 15:36:54,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:36:54,104 INFO L87 Difference]: Start difference. First operand 234 states and 324 transitions. Second operand 12 states. [2020-10-27 15:36:54,339 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 15:36:54,513 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 15:36:54,848 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-27 15:36:55,577 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 15:36:55,900 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 15:36:56,324 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 15:36:56,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:36:56,967 INFO L93 Difference]: Finished difference Result 551 states and 796 transitions. [2020-10-27 15:36:56,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 15:36:56,967 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 135 [2020-10-27 15:36:56,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:36:56,970 INFO L225 Difference]: With dead ends: 551 [2020-10-27 15:36:56,970 INFO L226 Difference]: Without dead ends: 237 [2020-10-27 15:36:56,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-27 15:36:56,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-27 15:36:56,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 234. [2020-10-27 15:36:56,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-27 15:36:56,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 309 transitions. [2020-10-27 15:36:56,992 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 309 transitions. Word has length 135 [2020-10-27 15:36:56,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:36:56,993 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 309 transitions. [2020-10-27 15:36:56,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 15:36:56,993 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 309 transitions. [2020-10-27 15:36:56,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-27 15:36:56,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:36:56,995 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:36:56,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:36:56,996 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:36:56,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:36:56,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1976260972, now seen corresponding path program 1 times [2020-10-27 15:36:56,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:36:56,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301297487] [2020-10-27 15:36:56,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:36:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:57,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:57,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:57,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:59,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:59,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-27 15:36:59,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:36:59,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2069 [2020-10-27 15:36:59,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:59,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 15:36:59,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-27 15:36:59,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-27 15:36:59,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:36:59,738 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-10-27 15:36:59,902 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 35 [2020-10-27 15:37:00,063 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 34 [2020-10-27 15:37:00,225 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 32 [2020-10-27 15:37:00,401 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 29 [2020-10-27 15:37:00,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:37:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:00,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:00,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:00,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:37:00,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:00,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 15:37:00,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:00,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:00,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:37:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:00,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:00,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:00,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 15:37:00,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:00,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 15:37:00,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:37:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 15:37:00,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:00,742 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:37:00,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [301297487] [2020-10-27 15:37:00,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:37:00,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 15:37:00,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302126368] [2020-10-27 15:37:00,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 15:37:00,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:37:00,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 15:37:00,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:37:00,745 INFO L87 Difference]: Start difference. First operand 234 states and 309 transitions. Second operand 12 states. [2020-10-27 15:37:01,058 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 15:37:01,275 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 15:37:01,862 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 115 [2020-10-27 15:37:02,275 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-27 15:37:03,081 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-27 15:37:03,776 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 111 [2020-10-27 15:37:04,402 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 15:37:04,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:37:04,748 INFO L93 Difference]: Finished difference Result 556 states and 774 transitions. [2020-10-27 15:37:04,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 15:37:04,749 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 139 [2020-10-27 15:37:04,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:37:04,752 INFO L225 Difference]: With dead ends: 556 [2020-10-27 15:37:04,753 INFO L226 Difference]: Without dead ends: 328 [2020-10-27 15:37:04,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-10-27 15:37:04,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-10-27 15:37:04,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 319. [2020-10-27 15:37:04,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-27 15:37:04,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 398 transitions. [2020-10-27 15:37:04,786 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 398 transitions. Word has length 139 [2020-10-27 15:37:04,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:37:04,786 INFO L481 AbstractCegarLoop]: Abstraction has 319 states and 398 transitions. [2020-10-27 15:37:04,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 15:37:04,787 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 398 transitions. [2020-10-27 15:37:04,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-27 15:37:04,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:37:04,793 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:37:04,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:37:04,795 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:37:04,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:37:04,795 INFO L82 PathProgramCache]: Analyzing trace with hash -303665627, now seen corresponding path program 1 times [2020-10-27 15:37:04,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:37:04,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427838915] [2020-10-27 15:37:04,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:37:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:04,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:04,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:05,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:05,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-27 15:37:05,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:37:05,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 508 [2020-10-27 15:37:05,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:05,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:37:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-27 15:37:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-27 15:37:05,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 15:37:05,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:37:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:05,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:05,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:05,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:37:05,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:05,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 15:37:05,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:05,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:05,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:37:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:05,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:05,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:05,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 15:37:05,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:05,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:37:05,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:05,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:05,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:05,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:05,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:05,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 15:37:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:05,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:05,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:05,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 15:37:05,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:05,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 15:37:05,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:05,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:37:05,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:05,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 15:37:05,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:05,929 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-27 15:37:05,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427838915] [2020-10-27 15:37:05,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:37:05,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:37:05,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288693336] [2020-10-27 15:37:05,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:37:05,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:37:05,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:37:05,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:37:05,932 INFO L87 Difference]: Start difference. First operand 319 states and 398 transitions. Second operand 5 states. [2020-10-27 15:37:06,256 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 15:37:07,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:37:07,496 INFO L93 Difference]: Finished difference Result 726 states and 953 transitions. [2020-10-27 15:37:07,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:37:07,497 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-10-27 15:37:07,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:37:07,500 INFO L225 Difference]: With dead ends: 726 [2020-10-27 15:37:07,500 INFO L226 Difference]: Without dead ends: 324 [2020-10-27 15:37:07,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:37:07,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-27 15:37:07,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 319. [2020-10-27 15:37:07,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-27 15:37:07,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 396 transitions. [2020-10-27 15:37:07,520 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 396 transitions. Word has length 161 [2020-10-27 15:37:07,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:37:07,521 INFO L481 AbstractCegarLoop]: Abstraction has 319 states and 396 transitions. [2020-10-27 15:37:07,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:37:07,521 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 396 transitions. [2020-10-27 15:37:07,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-27 15:37:07,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:37:07,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:37:07,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 15:37:07,524 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:37:07,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:37:07,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1229637770, now seen corresponding path program 1 times [2020-10-27 15:37:07,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:37:07,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560578233] [2020-10-27 15:37:07,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:37:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:07,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:07,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:08,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:09,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:09,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-27 15:37:09,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:37:09,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1627 [2020-10-27 15:37:09,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:37:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-27 15:37:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-27 15:37:09,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:09,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:37:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:09,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:09,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:09,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:37:09,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:09,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 15:37:09,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:09,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:09,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:09,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:09,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:37:09,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:37:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:09,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:09,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:09,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 15:37:09,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:09,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 15:37:09,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:09,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:37:09,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:09,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 15:37:09,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:09,496 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:37:09,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560578233] [2020-10-27 15:37:09,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:37:09,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:37:09,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225049108] [2020-10-27 15:37:09,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:37:09,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:37:09,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:37:09,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:37:09,499 INFO L87 Difference]: Start difference. First operand 319 states and 396 transitions. Second operand 5 states. [2020-10-27 15:37:11,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:37:11,091 INFO L93 Difference]: Finished difference Result 784 states and 1010 transitions. [2020-10-27 15:37:11,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:37:11,096 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-10-27 15:37:11,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:37:11,102 INFO L225 Difference]: With dead ends: 784 [2020-10-27 15:37:11,102 INFO L226 Difference]: Without dead ends: 471 [2020-10-27 15:37:11,104 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 [2020-10-27 15:37:11,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-10-27 15:37:11,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 466. [2020-10-27 15:37:11,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-10-27 15:37:11,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 608 transitions. [2020-10-27 15:37:11,142 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 608 transitions. Word has length 160 [2020-10-27 15:37:11,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:37:11,142 INFO L481 AbstractCegarLoop]: Abstraction has 466 states and 608 transitions. [2020-10-27 15:37:11,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:37:11,142 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 608 transitions. [2020-10-27 15:37:11,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-27 15:37:11,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:37:11,146 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:37:11,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 15:37:11,146 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:37:11,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:37:11,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1544402199, now seen corresponding path program 1 times [2020-10-27 15:37:11,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:37:11,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1827307633] [2020-10-27 15:37:11,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:37:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:11,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:11,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:11,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:12,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:12,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:13,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:13,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:13,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 15:37:13,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 15:37:13,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2463 [2020-10-27 15:37:13,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:13,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:37:13,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-27 15:37:13,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-27 15:37:13,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:13,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:37:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:13,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:13,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:13,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:37:13,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:13,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:37:13,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:13,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:13,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:13,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:13,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:13,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:37:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:14,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:14,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:14,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 15:37:14,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:14,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 15:37:14,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:14,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:14,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:14,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:14,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:14,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 15:37:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:14,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:14,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:14,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:37:14,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:14,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 15:37:14,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:37:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 15:37:14,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 15:37:14,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1827307633] [2020-10-27 15:37:14,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:37:14,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:37:14,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227263619] [2020-10-27 15:37:14,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:37:14,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:37:14,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:37:14,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:37:14,223 INFO L87 Difference]: Start difference. First operand 466 states and 608 transitions. Second operand 5 states. [2020-10-27 15:37:14,668 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 15:37:15,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:37:15,894 INFO L93 Difference]: Finished difference Result 1028 states and 1383 transitions. [2020-10-27 15:37:15,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:37:15,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 175 [2020-10-27 15:37:15,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:37:15,898 INFO L225 Difference]: With dead ends: 1028 [2020-10-27 15:37:15,899 INFO L226 Difference]: Without dead ends: 471 [2020-10-27 15:37:15,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:37:15,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-10-27 15:37:15,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 466. [2020-10-27 15:37:15,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-10-27 15:37:15,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 606 transitions. [2020-10-27 15:37:15,940 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 606 transitions. Word has length 175 [2020-10-27 15:37:15,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:37:15,941 INFO L481 AbstractCegarLoop]: Abstraction has 466 states and 606 transitions. [2020-10-27 15:37:15,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:37:15,942 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 606 transitions. [2020-10-27 15:37:15,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-27 15:37:15,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:37:15,945 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 15:37:15,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 15:37:15,946 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:37:15,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:37:15,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1207761599, now seen corresponding path program 1 times [2020-10-27 15:37:15,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:37:15,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109397859] [2020-10-27 15:37:15,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:37:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:16,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:16,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:16,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:17,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:18,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:18,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-27 15:37:18,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:37:18,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2567 [2020-10-27 15:37:18,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:18,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:37:18,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-27 15:37:18,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-27 15:37:18,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:18,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:37:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:18,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:18,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:18,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:37:18,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:18,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:37:18,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:18,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:18,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:18,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:18,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:18,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:37:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:18,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:18,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:18,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 15:37:18,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:18,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 15:37:18,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:18,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:18,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:18,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:18,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:18,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 15:37:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:18,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:18,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:18,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 15:37:18,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:18,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 15:37:18,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:18,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:37:18,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:18,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 15:37:18,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:18,862 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-27 15:37:18,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1109397859] [2020-10-27 15:37:18,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:37:18,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:37:18,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811526029] [2020-10-27 15:37:18,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:37:18,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:37:18,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:37:18,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:37:18,865 INFO L87 Difference]: Start difference. First operand 466 states and 606 transitions. Second operand 5 states. [2020-10-27 15:37:20,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:37:20,362 INFO L93 Difference]: Finished difference Result 1234 states and 1673 transitions. [2020-10-27 15:37:20,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:37:20,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 186 [2020-10-27 15:37:20,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:37:20,370 INFO L225 Difference]: With dead ends: 1234 [2020-10-27 15:37:20,370 INFO L226 Difference]: Without dead ends: 774 [2020-10-27 15:37:20,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:37:20,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2020-10-27 15:37:20,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 762. [2020-10-27 15:37:20,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2020-10-27 15:37:20,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 992 transitions. [2020-10-27 15:37:20,410 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 992 transitions. Word has length 186 [2020-10-27 15:37:20,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:37:20,410 INFO L481 AbstractCegarLoop]: Abstraction has 762 states and 992 transitions. [2020-10-27 15:37:20,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:37:20,411 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 992 transitions. [2020-10-27 15:37:20,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-27 15:37:20,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:37:20,415 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 15:37:20,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 15:37:20,415 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:37:20,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:37:20,416 INFO L82 PathProgramCache]: Analyzing trace with hash 2072005623, now seen corresponding path program 1 times [2020-10-27 15:37:20,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:37:20,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603938226] [2020-10-27 15:37:20,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:37:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:20,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:20,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:20,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:22,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:22,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:22,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:23,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:23,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-27 15:37:23,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 15:37:23,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3035 [2020-10-27 15:37:23,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:23,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:37:23,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-27 15:37:23,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-27 15:37:23,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:23,712 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 15:37:23,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:37:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:23,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:23,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:23,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:37:23,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:23,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:37:23,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:23,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:23,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:23,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:23,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:23,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:37:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:23,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:23,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:23,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 15:37:23,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:23,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 15:37:23,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:23,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:23,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:23,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:23,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:23,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 15:37:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:23,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:23,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:23,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 15:37:23,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:23,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 15:37:23,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:23,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:37:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 15:37:23,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:37:24,004 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-27 15:37:24,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603938226] [2020-10-27 15:37:24,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:37:24,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:37:24,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064789714] [2020-10-27 15:37:24,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:37:24,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:37:24,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:37:24,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:37:24,011 INFO L87 Difference]: Start difference. First operand 762 states and 992 transitions. Second operand 5 states. [2020-10-27 15:37:24,511 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-27 15:37:25,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:37:25,430 INFO L93 Difference]: Finished difference Result 1611 states and 2149 transitions. [2020-10-27 15:37:25,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:37:25,431 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 190 [2020-10-27 15:37:25,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:37:25,437 INFO L225 Difference]: With dead ends: 1611 [2020-10-27 15:37:25,437 INFO L226 Difference]: Without dead ends: 767 [2020-10-27 15:37:25,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:37:25,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2020-10-27 15:37:25,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 762. [2020-10-27 15:37:25,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2020-10-27 15:37:25,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 984 transitions. [2020-10-27 15:37:25,478 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 984 transitions. Word has length 190 [2020-10-27 15:37:25,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:37:25,478 INFO L481 AbstractCegarLoop]: Abstraction has 762 states and 984 transitions. [2020-10-27 15:37:25,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:37:25,478 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 984 transitions. [2020-10-27 15:37:25,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-27 15:37:25,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:37:25,484 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 15:37:25,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 15:37:25,484 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:37:25,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:37:25,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1235584423, now seen corresponding path program 1 times [2020-10-27 15:37:25,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:37:25,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995106524] [2020-10-27 15:37:25,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:37:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:25,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:25,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:25,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:25,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:26,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:26,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:29,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:30,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:30,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-27 15:37:30,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 15:37:30,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-27 15:37:30,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:30,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:37:30,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-27 15:37:30,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-27 15:37:30,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:30,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:37:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:30,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:30,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:30,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:37:30,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:30,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 15:37:30,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:30,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:30,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:30,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:30,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:30,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:37:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:30,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:30,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:30,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 15:37:30,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:30,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 15:37:30,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:30,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:30,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:30,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:30,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:30,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 15:37:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:30,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:30,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:30,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 15:37:30,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:30,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:37:30,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:30,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:30,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:30,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:30,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:30,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 15:37:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:30,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:30,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:30,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-27 15:37:30,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:30,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 15:37:30,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:30,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:37:30,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:30,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 15:37:30,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:31,070 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-10-27 15:37:31,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995106524] [2020-10-27 15:37:31,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:37:31,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 15:37:31,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076888221] [2020-10-27 15:37:31,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 15:37:31,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:37:31,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 15:37:31,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:37:31,073 INFO L87 Difference]: Start difference. First operand 762 states and 984 transitions. Second operand 6 states. [2020-10-27 15:37:31,807 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 15:37:32,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:37:32,621 INFO L93 Difference]: Finished difference Result 1622 states and 2140 transitions. [2020-10-27 15:37:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:37:32,623 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2020-10-27 15:37:32,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:37:32,629 INFO L225 Difference]: With dead ends: 1622 [2020-10-27 15:37:32,629 INFO L226 Difference]: Without dead ends: 767 [2020-10-27 15:37:32,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:37:32,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2020-10-27 15:37:32,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 762. [2020-10-27 15:37:32,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2020-10-27 15:37:32,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 982 transitions. [2020-10-27 15:37:32,663 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 982 transitions. Word has length 216 [2020-10-27 15:37:32,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:37:32,663 INFO L481 AbstractCegarLoop]: Abstraction has 762 states and 982 transitions. [2020-10-27 15:37:32,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 15:37:32,663 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 982 transitions. [2020-10-27 15:37:32,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-27 15:37:32,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:37:32,668 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:37:32,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 15:37:32,669 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:37:32,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:37:32,669 INFO L82 PathProgramCache]: Analyzing trace with hash 653619571, now seen corresponding path program 1 times [2020-10-27 15:37:32,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:37:32,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789349498] [2020-10-27 15:37:32,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:37:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:32,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:32,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:32,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:33,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:33,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:33,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:34,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:35,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:36,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:36,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-27 15:37:36,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 15:37:36,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3403 [2020-10-27 15:37:36,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:36,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:37:36,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-27 15:37:36,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 15:37:36,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:36,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:37:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:36,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:36,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:36,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:37:36,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:36,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:37:36,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:36,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:36,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:36,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:36,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:36,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:37:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:36,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:36,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:36,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 15:37:36,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:37:36,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 15:37:36,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:36,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:37:36,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:37:36,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:37:36,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:36,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 15:37:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:37:36,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:36,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:37:36,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:37:36,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 15:37:36,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:37:36,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 15:37:36,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:37:36,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:37:36,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-27 15:37:36,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:37:36,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:37:36,429 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-27 15:37:36,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789349498] [2020-10-27 15:37:36,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:37:36,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 15:37:36,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982273916] [2020-10-27 15:37:36,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 15:37:36,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:37:36,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 15:37:36,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:37:36,431 INFO L87 Difference]: Start difference. First operand 762 states and 982 transitions. Second operand 6 states. [2020-10-27 15:37:38,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:37:38,968 INFO L93 Difference]: Finished difference Result 2394 states and 3251 transitions. [2020-10-27 15:37:38,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 15:37:38,969 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 218 [2020-10-27 15:37:38,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:37:38,969 INFO L225 Difference]: With dead ends: 2394 [2020-10-27 15:37:38,969 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 15:37:38,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-27 15:37:38,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 15:37:38,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 15:37:38,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 15:37:38,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 15:37:38,976 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 218 [2020-10-27 15:37:38,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:37:38,977 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 15:37:38,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 15:37:38,977 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 15:37:38,977 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 15:37:38,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 15:37:38,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 15:37:39,657 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 44 [2020-10-27 15:37:39,772 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 44 [2020-10-27 15:37:39,951 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 39 [2020-10-27 15:37:40,130 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 46 [2020-10-27 15:37:40,916 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 73 [2020-10-27 15:37:41,134 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-27 15:37:41,271 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-27 15:37:41,276 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 15:37:41,276 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 15:37:41,276 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 15:37:41,277 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 15:37:41,277 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:37:41,277 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)|)) [2020-10-27 15:37:41,278 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:37:41,278 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-27 15:37:41,278 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-27 15:37:41,279 INFO L270 CegarLoopResult]: At program point L531(line 531) the Hoare annotation is: (let ((.cse0 (not (= ~a21~0 1))) (.cse1 (= |old(~a11~0)| 1))) (and (or (not (<= |old(~a11~0)| 1)) (not (<= |old(~a28~0)| 10)) (not (<= 7 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (<= 10 |old(~a28~0)|)) .cse0 (not (<= 1 |old(~a11~0)|)) (not (<= |old(~a19~0)| 0))) (not (<= 8 |old(~a17~0)|)) (not (= |old(~a19~0)| 1)) (or (not (= 7 |old(~a17~0)|)) (not (= 9 |old(~a28~0)|)) .cse0 (not .cse1) (not (= |old(~a11~0)| |old(~a25~0)|))) (or (not (= |old(~a19~0)| |old(~a25~0)|)) .cse1))) [2020-10-27 15:37:41,279 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-27 15:37:41,279 INFO L274 CegarLoopResult]: For program point L531-1(line 531) no Hoare annotation was computed. [2020-10-27 15:37:41,279 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-27 15:37:41,279 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-27 15:37:41,279 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-27 15:37:41,279 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-27 15:37:41,279 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-27 15:37:41,279 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-27 15:37:41,280 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-27 15:37:41,280 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-27 15:37:41,280 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-27 15:37:41,280 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-27 15:37:41,280 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-27 15:37:41,280 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,280 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,280 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,280 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,280 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,281 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-27 15:37:41,281 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-27 15:37:41,281 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-27 15:37:41,281 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-27 15:37:41,281 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-27 15:37:41,281 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-27 15:37:41,281 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-27 15:37:41,281 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-27 15:37:41,281 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-27 15:37:41,281 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-27 15:37:41,282 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-27 15:37:41,282 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-27 15:37:41,282 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-27 15:37:41,282 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,282 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,282 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,282 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,282 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-27 15:37:41,282 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,282 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-27 15:37:41,283 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-27 15:37:41,283 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-27 15:37:41,283 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-27 15:37:41,283 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-27 15:37:41,283 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-27 15:37:41,283 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-27 15:37:41,283 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-27 15:37:41,283 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-27 15:37:41,283 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-27 15:37:41,283 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-27 15:37:41,283 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-27 15:37:41,284 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-27 15:37:41,284 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-27 15:37:41,284 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-27 15:37:41,284 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,284 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,284 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,284 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,284 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,284 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-27 15:37:41,284 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-27 15:37:41,285 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-27 15:37:41,285 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-27 15:37:41,285 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-27 15:37:41,285 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-27 15:37:41,285 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-27 15:37:41,285 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-27 15:37:41,285 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-27 15:37:41,285 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-27 15:37:41,285 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-27 15:37:41,285 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,285 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,286 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,286 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,286 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,286 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-27 15:37:41,286 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-27 15:37:41,286 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-27 15:37:41,286 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-27 15:37:41,286 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-27 15:37:41,286 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-27 15:37:41,286 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-27 15:37:41,286 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-27 15:37:41,287 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-27 15:37:41,287 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-27 15:37:41,287 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-27 15:37:41,287 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-27 15:37:41,287 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-27 15:37:41,287 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,287 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,287 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,287 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,287 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,287 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-27 15:37:41,288 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-27 15:37:41,288 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-27 15:37:41,288 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-27 15:37:41,288 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-27 15:37:41,288 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-27 15:37:41,288 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-27 15:37:41,288 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-27 15:37:41,288 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-27 15:37:41,288 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,288 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,288 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-27 15:37:41,288 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-27 15:37:41,289 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-27 15:37:41,289 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-27 15:37:41,289 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-27 15:37:41,289 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-27 15:37:41,289 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-27 15:37:41,289 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,289 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,289 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,289 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,289 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-27 15:37:41,289 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,289 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-27 15:37:41,290 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,290 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-27 15:37:41,290 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-27 15:37:41,290 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-27 15:37:41,290 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-27 15:37:41,290 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-27 15:37:41,290 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-27 15:37:41,290 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-27 15:37:41,290 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-27 15:37:41,290 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-27 15:37:41,290 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-27 15:37:41,291 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-27 15:37:41,291 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-27 15:37:41,291 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-27 15:37:41,291 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-27 15:37:41,291 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,291 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,291 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,291 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,291 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,291 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,291 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-27 15:37:41,291 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-27 15:37:41,292 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-27 15:37:41,292 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-27 15:37:41,292 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-27 15:37:41,292 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-27 15:37:41,292 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-27 15:37:41,292 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-27 15:37:41,292 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-27 15:37:41,292 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-27 15:37:41,292 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-27 15:37:41,292 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,293 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,293 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,293 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,293 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,293 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,293 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-27 15:37:41,293 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-27 15:37:41,293 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-27 15:37:41,293 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-27 15:37:41,293 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-27 15:37:41,293 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-27 15:37:41,293 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-27 15:37:41,294 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse6 (= ~a28~0 |old(~a28~0)|)) (.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse7 (= ~a11~0 |old(~a11~0)|)) (.cse3 (= ~a25~0 |old(~a25~0)|)) (.cse4 (= ~a19~0 |old(~a19~0)|))) (let ((.cse1 (= |old(~a11~0)| 1)) (.cse5 (not (= ~a21~0 1))) (.cse0 (and .cse6 .cse2 .cse7 .cse3 .cse4))) (and (or .cse0 (not (= |old(~a19~0)| |old(~a25~0)|)) .cse1) (or (not (= 7 |old(~a17~0)|)) (and (= ~a25~0 ~a11~0) .cse2 .cse3 (= ~a28~0 9) .cse4) (not (= 9 |old(~a28~0)|)) .cse5 (not .cse1) (not (= |old(~a11~0)| |old(~a25~0)|))) (or (not (= |old(~a19~0)| 1)) (and .cse6 .cse2 .cse7 (= ~a19~0 1) .cse3)) (or (not (<= |old(~a11~0)| 1)) (not (<= |old(~a28~0)| 10)) (not (<= 7 |old(~a17~0)|)) (not (<= |old(~a17~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= 10 |old(~a28~0)|)) .cse5 (not (<= 1 |old(~a11~0)|)) (and (<= 1 ~a11~0) (<= 7 ~a17~0) (<= 10 ~a28~0) .cse3 (<= ~a11~0 1) (<= ~a28~0 10) (<= ~a17~0 7) .cse4) (not (<= |old(~a19~0)| 0))) (or (not (<= 8 |old(~a17~0)|)) .cse0)))) [2020-10-27 15:37:41,294 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-27 15:37:41,294 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-27 15:37:41,294 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-27 15:37:41,294 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-27 15:37:41,294 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-27 15:37:41,294 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-27 15:37:41,295 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-27 15:37:41,295 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,295 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,295 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,295 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,295 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,295 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,295 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-27 15:37:41,295 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-27 15:37:41,295 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-27 15:37:41,295 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-27 15:37:41,295 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-27 15:37:41,295 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-27 15:37:41,296 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-27 15:37:41,296 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-27 15:37:41,296 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-27 15:37:41,296 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-27 15:37:41,296 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-27 15:37:41,296 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-27 15:37:41,296 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-27 15:37:41,296 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,296 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,296 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,296 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,296 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,297 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,297 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-27 15:37:41,297 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-27 15:37:41,297 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-27 15:37:41,297 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-27 15:37:41,297 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-27 15:37:41,297 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-27 15:37:41,297 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-27 15:37:41,297 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-27 15:37:41,297 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-27 15:37:41,297 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-27 15:37:41,297 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-27 15:37:41,297 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-27 15:37:41,298 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-27 15:37:41,298 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-27 15:37:41,298 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-27 15:37:41,298 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-27 15:37:41,298 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,298 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,298 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,298 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,298 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-27 15:37:41,298 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-27 15:37:41,298 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-27 15:37:41,298 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-27 15:37:41,298 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-27 15:37:41,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:37:41,299 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a21~0 1) (<= 7 ~a28~0) (<= 8 ~a17~0) (= ~a11~0 0) (<= ~a28~0 7) (<= ~a17~0 8)) [2020-10-27 15:37:41,299 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 15:37:41,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:37:41,299 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse0 (= ~a11~0 1))) (or (not (= |old(~a19~0)| 1)) (not (<= 8 |old(~a17~0)|)) (= ~a19~0 1) (not (<= 7 |old(~a28~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= 0 |old(~a11~0)|)) (<= 8 ~a17~0) (not (= ~a21~0 1)) (and (= ~a25~0 ~a11~0) (= 7 ~a17~0) (= ~a28~0 9) .cse0) (and (<= 1 ~a11~0) (<= ~a19~0 0) (<= 7 ~a17~0) (<= 10 ~a28~0) (<= ~a11~0 1) (<= ~a25~0 0) (<= ~a28~0 10)) (not (= |old(~a11~0)| |old(~a25~0)|)) (and (not .cse0) (= ~a25~0 ~a19~0)))) [2020-10-27 15:37:41,299 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (and (= ~a25~0 ~a11~0) (= ~a17~0 |old(~a17~0)|) (= ~a19~0 1) (<= 7 ~a28~0) (= ~a25~0 |old(~a25~0)|) (<= ~a28~0 7)) (not (= |old(~a19~0)| 1)) (not (<= 8 |old(~a17~0)|)) (not (= 0 |old(~a11~0)|)) (not (<= 7 |old(~a28~0)|)) (not (= ~a21~0 1)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-27 15:37:41,299 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-27 15:37:41,299 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-27 15:37:41,300 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse0 (= ~a11~0 1))) (or (not (= |old(~a19~0)| 1)) (not (<= 8 |old(~a17~0)|)) (= ~a19~0 1) (not (<= 7 |old(~a28~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= 0 |old(~a11~0)|)) (<= 8 ~a17~0) (not (= ~a21~0 1)) (and (= ~a25~0 ~a11~0) (= 7 ~a17~0) (= ~a28~0 9) .cse0) (and (<= 1 ~a11~0) (<= ~a19~0 0) (<= 7 ~a17~0) (<= 10 ~a28~0) (<= ~a11~0 1) (<= ~a25~0 0) (<= ~a28~0 10)) (not (= |old(~a11~0)| |old(~a25~0)|)) (and (not .cse0) (= ~a25~0 ~a19~0)))) [2020-10-27 15:37:41,300 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-27 15:37:41,300 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-27 15:37:41,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:37:41 BoogieIcfgContainer [2020-10-27 15:37:41,322 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 15:37:41,323 INFO L168 Benchmark]: Toolchain (without parser) took 61291.10 ms. Allocated memory was 151.0 MB in the beginning and 859.8 MB in the end (delta: 708.8 MB). Free memory was 130.5 MB in the beginning and 709.9 MB in the end (delta: -579.4 MB). Peak memory consumption was 517.8 MB. Max. memory is 8.0 GB. [2020-10-27 15:37:41,324 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 123.2 MB in the end (delta: 77.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:37:41,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.05 ms. Allocated memory is still 151.0 MB. Free memory was 129.9 MB in the beginning and 125.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 19.4 MB. Max. memory is 8.0 GB. [2020-10-27 15:37:41,326 INFO L168 Benchmark]: Boogie Preprocessor took 127.54 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 120.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 15:37:41,326 INFO L168 Benchmark]: RCFGBuilder took 1463.17 ms. Allocated memory is still 151.0 MB. Free memory was 120.4 MB in the beginning and 75.9 MB in the end (delta: 44.5 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. [2020-10-27 15:37:41,327 INFO L168 Benchmark]: TraceAbstraction took 58947.89 ms. Allocated memory was 151.0 MB in the beginning and 859.8 MB in the end (delta: 708.8 MB). Free memory was 75.4 MB in the beginning and 709.9 MB in the end (delta: -634.5 MB). Peak memory consumption was 462.8 MB. Max. memory is 8.0 GB. [2020-10-27 15:37:41,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 123.2 MB in the end (delta: 77.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 736.05 ms. Allocated memory is still 151.0 MB. Free memory was 129.9 MB in the beginning and 125.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 19.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 127.54 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 120.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1463.17 ms. Allocated memory is still 151.0 MB. Free memory was 120.4 MB in the beginning and 75.9 MB in the end (delta: 44.5 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 58947.89 ms. Allocated memory was 151.0 MB in the beginning and 859.8 MB in the end (delta: 708.8 MB). Free memory was 75.4 MB in the beginning and 709.9 MB in the end (delta: -634.5 MB). Peak memory consumption was 462.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: (((((((((((!(\old(a19) == 1) || !(8 <= \old(a17))) || a19 == 1) || !(7 <= \old(a28))) || !(\old(a28) <= 7)) || !(\old(a17) <= 8)) || !(0 == \old(a11))) || 8 <= a17) || !(a21 == 1)) || (((a25 == a11 && 7 == a17) && a28 == 9) && a11 == 1)) || ((((((1 <= a11 && a19 <= 0) && 7 <= a17) && 10 <= a28) && a11 <= 1) && a25 <= 0) && a28 <= 10)) || !(\old(a11) == \old(a25))) || (!(a11 == 1) && a25 == a19) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 56.5s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 23.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 358 SDtfs, 3947 SDslu, 456 SDs, 0 SdLazy, 7579 SolverSat, 998 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 75 SyntacticMatches, 5 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=762occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 52 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 126 PreInvPairs, 163 NumberOfFragments, 562 HoareAnnotationTreeSize, 126 FomulaSimplifications, 236319 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2474 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 30.6s InterpolantComputationTime, 1706 NumberOfCodeBlocks, 1706 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1696 ConstructedInterpolants, 0 QuantifiedInterpolants, 3190810 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 560/576 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...