/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=SHALLOWEST --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_label47.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:39:56,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:39:56,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:39:56,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:39:56,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:39:56,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:39:56,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:39:56,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:39:56,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:39:56,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:39:56,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:39:56,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:39:56,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:39:56,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:39:56,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:39:56,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:39:56,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:39:56,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:39:56,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:39:56,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:39:56,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:39:56,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:39:56,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:39:56,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:39:56,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:39:56,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:39:56,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:39:56,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:39:56,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:39:56,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:39:56,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:39:56,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:39:56,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:39:56,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:39:56,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:39:56,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:39:56,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:39:56,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:39:56,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:39:56,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:39:56,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:39:56,565 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 [2020-10-26 20:39:56,624 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:39:56,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:39:56,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:39:56,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:39:56,629 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:39:56,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:39:56,630 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:39:56,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:39:56,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:39:56,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:39:56,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:39:56,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:39:56,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:39:56,632 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:39:56,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:39:56,633 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:39:56,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:39:56,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:39:56,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:39:56,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:39:56,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:39:56,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:39:56,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:39:56,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:39:56,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:39:56,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:39:56,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:39:56,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:39:56,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:39:56,636 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:39:57,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:39:57,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:39:57,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:39:57,117 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:39:57,118 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:39:57,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label47.c [2020-10-26 20:39:57,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c27c87297/d07743aa0e974a289f741a1e14e226ef/FLAG962e49e43 [2020-10-26 20:39:58,103 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:39:58,104 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label47.c [2020-10-26 20:39:58,116 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c27c87297/d07743aa0e974a289f741a1e14e226ef/FLAG962e49e43 [2020-10-26 20:39:58,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c27c87297/d07743aa0e974a289f741a1e14e226ef [2020-10-26 20:39:58,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:39:58,295 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:39:58,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:39:58,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:39:58,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:39:58,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:39:58" (1/1) ... [2020-10-26 20:39:58,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7185a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:58, skipping insertion in model container [2020-10-26 20:39:58,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:39:58" (1/1) ... [2020-10-26 20:39:58,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:39:58,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:39:58,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:39:58,918 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:39:59,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:39:59,103 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:39:59,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:59 WrapperNode [2020-10-26 20:39:59,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:39:59,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:39:59,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:39:59,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:39:59,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:59" (1/1) ... [2020-10-26 20:39:59,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:59" (1/1) ... [2020-10-26 20:39:59,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:59" (1/1) ... [2020-10-26 20:39:59,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:59" (1/1) ... [2020-10-26 20:39:59,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:59" (1/1) ... [2020-10-26 20:39:59,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:59" (1/1) ... [2020-10-26 20:39:59,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:59" (1/1) ... [2020-10-26 20:39:59,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:39:59,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:39:59,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:39:59,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:39:59,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:59" (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 [2020-10-26 20:39:59,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:39:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:39:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:39:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:39:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:39:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:39:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:39:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:39:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:39:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:39:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:39:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:39:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:39:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:39:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:39:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:39:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:39:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:39:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:40:01,004 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:40:01,004 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:40:01,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:40:01 BoogieIcfgContainer [2020-10-26 20:40:01,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:40:01,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:40:01,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:40:01,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:40:01,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:39:58" (1/3) ... [2020-10-26 20:40:01,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7d9089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:40:01, skipping insertion in model container [2020-10-26 20:40:01,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:59" (2/3) ... [2020-10-26 20:40:01,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7d9089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:40:01, skipping insertion in model container [2020-10-26 20:40:01,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:40:01" (3/3) ... [2020-10-26 20:40:01,019 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label47.c [2020-10-26 20:40:01,034 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:40:01,040 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:40:01,056 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:40:01,112 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:40:01,112 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:40:01,113 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:40:01,113 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:40:01,113 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:40:01,113 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:40:01,113 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:40:01,113 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:40:01,161 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-26 20:40:01,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-26 20:40:01,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:01,181 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] [2020-10-26 20:40:01,182 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:01,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:01,190 INFO L82 PathProgramCache]: Analyzing trace with hash -2076300467, now seen corresponding path program 1 times [2020-10-26 20:40:01,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:01,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977106198] [2020-10-26 20:40:01,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:01,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:01,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:03,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:03,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-26 20:40:03,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:40:03,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2213 [2020-10-26 20:40:03,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:03,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:40:03,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:40:03,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-26 20:40:03,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:40:04,059 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:40:04,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:04,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:04,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:04,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:04,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:04,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-26 20:40:04,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:40:04,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:04,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:40:04,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977106198] [2020-10-26 20:40:04,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:40:04,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 20:40:04,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121781084] [2020-10-26 20:40:04,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:40:04,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:04,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:40:04,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:40:04,228 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-26 20:40:04,477 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:40:07,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:07,398 INFO L93 Difference]: Finished difference Result 667 states and 1119 transitions. [2020-10-26 20:40:07,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:40:07,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 114 [2020-10-26 20:40:07,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:07,424 INFO L225 Difference]: With dead ends: 667 [2020-10-26 20:40:07,424 INFO L226 Difference]: Without dead ends: 342 [2020-10-26 20:40:07,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:40:07,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-10-26 20:40:07,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 338. [2020-10-26 20:40:07,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-10-26 20:40:07,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 489 transitions. [2020-10-26 20:40:07,522 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 489 transitions. Word has length 114 [2020-10-26 20:40:07,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:07,524 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 489 transitions. [2020-10-26 20:40:07,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:40:07,524 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 489 transitions. [2020-10-26 20:40:07,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-26 20:40:07,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:07,533 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:07,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:40:07,533 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:07,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:07,534 INFO L82 PathProgramCache]: Analyzing trace with hash -679714687, now seen corresponding path program 1 times [2020-10-26 20:40:07,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:07,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602122772] [2020-10-26 20:40:07,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:07,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:07,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:08,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:08,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:08,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-26 20:40:08,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:40:08,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1097 [2020-10-26 20:40:08,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:40:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:40:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:40:08,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:08,957 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:40:08,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:08,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:08,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:08,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:08,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:08,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:40:08,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:08,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:08,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:08,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:40:08,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:09,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:09,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:09,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:09,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:40:09,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:09,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:40:09,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:09,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:09,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:09,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:40:09,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:09,093 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:40:09,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602122772] [2020-10-26 20:40:09,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:40:09,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:40:09,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67782061] [2020-10-26 20:40:09,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:40:09,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:09,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:40:09,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:09,098 INFO L87 Difference]: Start difference. First operand 338 states and 489 transitions. Second operand 7 states. [2020-10-26 20:40:09,305 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-26 20:40:10,687 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-26 20:40:14,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:14,130 INFO L93 Difference]: Finished difference Result 1310 states and 2006 transitions. [2020-10-26 20:40:14,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:40:14,131 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 122 [2020-10-26 20:40:14,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:14,144 INFO L225 Difference]: With dead ends: 1310 [2020-10-26 20:40:14,144 INFO L226 Difference]: Without dead ends: 978 [2020-10-26 20:40:14,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:40:14,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2020-10-26 20:40:14,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 961. [2020-10-26 20:40:14,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2020-10-26 20:40:14,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1272 transitions. [2020-10-26 20:40:14,253 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1272 transitions. Word has length 122 [2020-10-26 20:40:14,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:14,254 INFO L481 AbstractCegarLoop]: Abstraction has 961 states and 1272 transitions. [2020-10-26 20:40:14,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:14,254 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1272 transitions. [2020-10-26 20:40:14,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-26 20:40:14,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:14,264 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:14,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:40:14,264 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:14,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:14,265 INFO L82 PathProgramCache]: Analyzing trace with hash 249351136, now seen corresponding path program 1 times [2020-10-26 20:40:14,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:14,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967346686] [2020-10-26 20:40:14,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:14,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:14,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:14,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:15,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:15,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-26 20:40:15,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:40:15,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1128 [2020-10-26 20:40:15,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:15,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:15,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-26 20:40:15,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:40:15,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:15,658 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:40:15,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:15,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:15,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:15,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:15,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:15,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:40:15,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:15,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:15,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:15,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:15,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:15,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:15,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:15,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:15,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:40:15,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:15,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:40:15,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:15,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:15,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:15,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-26 20:40:15,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:15,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:40:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:15,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:15,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:15,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:40:15,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:15,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:40:15,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:15,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:15,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:15,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:40:15,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:40:15,854 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:40:15,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967346686] [2020-10-26 20:40:15,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:15,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:40:15,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909811635] [2020-10-26 20:40:15,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:40:15,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:15,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:40:15,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:15,861 INFO L87 Difference]: Start difference. First operand 961 states and 1272 transitions. Second operand 7 states. [2020-10-26 20:40:16,163 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:40:17,244 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-26 20:40:19,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:19,028 INFO L93 Difference]: Finished difference Result 2244 states and 3075 transitions. [2020-10-26 20:40:19,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:40:19,029 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2020-10-26 20:40:19,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:19,047 INFO L225 Difference]: With dead ends: 2244 [2020-10-26 20:40:19,048 INFO L226 Difference]: Without dead ends: 1297 [2020-10-26 20:40:19,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:40:19,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2020-10-26 20:40:19,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1283. [2020-10-26 20:40:19,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1283 states. [2020-10-26 20:40:19,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1653 transitions. [2020-10-26 20:40:19,138 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1653 transitions. Word has length 131 [2020-10-26 20:40:19,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:19,141 INFO L481 AbstractCegarLoop]: Abstraction has 1283 states and 1653 transitions. [2020-10-26 20:40:19,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:19,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1653 transitions. [2020-10-26 20:40:19,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-26 20:40:19,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:19,156 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:19,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:40:19,157 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:19,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:19,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1876019432, now seen corresponding path program 1 times [2020-10-26 20:40:19,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:19,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87457443] [2020-10-26 20:40:19,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:19,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:19,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:19,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:20,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:20,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-26 20:40:20,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:40:20,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1051 [2020-10-26 20:40:20,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:40:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:40:20,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:20,411 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:40:20,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:20,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:20,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:20,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:20,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:20,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:40:20,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:20,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:20,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:20,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:20,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:20,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:20,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:20,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:20,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:40:20,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:20,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:40:20,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:20,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:20,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:20,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:40:20,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:20,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:40:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:20,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:20,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:20,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:40:20,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:20,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:40:20,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:20,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:20,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:20,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:40:20,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:20,559 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:40:20,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87457443] [2020-10-26 20:40:20,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:20,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:40:20,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334315379] [2020-10-26 20:40:20,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:40:20,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:20,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:40:20,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:20,564 INFO L87 Difference]: Start difference. First operand 1283 states and 1653 transitions. Second operand 7 states. [2020-10-26 20:40:20,904 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:40:21,071 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:40:23,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:23,762 INFO L93 Difference]: Finished difference Result 2874 states and 3819 transitions. [2020-10-26 20:40:23,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:40:23,763 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2020-10-26 20:40:23,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:23,774 INFO L225 Difference]: With dead ends: 2874 [2020-10-26 20:40:23,774 INFO L226 Difference]: Without dead ends: 1613 [2020-10-26 20:40:23,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:40:23,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2020-10-26 20:40:23,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1595. [2020-10-26 20:40:23,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1595 states. [2020-10-26 20:40:23,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 2030 transitions. [2020-10-26 20:40:23,848 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 2030 transitions. Word has length 135 [2020-10-26 20:40:23,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:23,849 INFO L481 AbstractCegarLoop]: Abstraction has 1595 states and 2030 transitions. [2020-10-26 20:40:23,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:23,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 2030 transitions. [2020-10-26 20:40:23,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-26 20:40:23,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:23,857 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:23,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:40:23,857 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:23,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:23,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1381206556, now seen corresponding path program 1 times [2020-10-26 20:40:23,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:23,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677926923] [2020-10-26 20:40:23,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:23,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:23,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:24,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:27,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:28,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:28,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-26 20:40:28,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:40:28,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-26 20:40:28,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:28,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:40:28,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:40:28,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:40:28,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:29,092 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:40:29,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:29,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:29,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:29,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:29,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:29,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:40:29,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:29,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:29,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:29,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:40:29,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:29,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:29,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:29,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:29,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-26 20:40:29,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:29,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:40:29,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:29,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:29,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:29,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 20:40:29,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:29,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-26 20:40:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:29,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:29,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:29,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:40:29,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:29,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:40:29,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:40:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:29,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 20:40:29,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677926923] [2020-10-26 20:40:29,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:29,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:40:29,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147409540] [2020-10-26 20:40:29,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:40:29,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:29,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:40:29,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:29,342 INFO L87 Difference]: Start difference. First operand 1595 states and 2030 transitions. Second operand 7 states. [2020-10-26 20:40:29,564 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:40:30,281 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-26 20:40:32,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:32,438 INFO L93 Difference]: Finished difference Result 3789 states and 4828 transitions. [2020-10-26 20:40:32,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:40:32,445 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2020-10-26 20:40:32,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:32,459 INFO L225 Difference]: With dead ends: 3789 [2020-10-26 20:40:32,459 INFO L226 Difference]: Without dead ends: 1884 [2020-10-26 20:40:32,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:40:32,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2020-10-26 20:40:32,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1858. [2020-10-26 20:40:32,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1858 states. [2020-10-26 20:40:32,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2183 transitions. [2020-10-26 20:40:32,542 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2183 transitions. Word has length 141 [2020-10-26 20:40:32,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:32,543 INFO L481 AbstractCegarLoop]: Abstraction has 1858 states and 2183 transitions. [2020-10-26 20:40:32,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:32,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2183 transitions. [2020-10-26 20:40:32,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-26 20:40:32,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:32,549 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, 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] [2020-10-26 20:40:32,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:40:32,550 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:32,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:32,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1876666551, now seen corresponding path program 1 times [2020-10-26 20:40:32,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:32,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644803155] [2020-10-26 20:40:32,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:32,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:32,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:33,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:33,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:33,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-26 20:40:33,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:40:33,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1409 [2020-10-26 20:40:33,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:40:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:40:33,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:34,176 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:40:34,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:34,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:34,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:34,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:34,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:34,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:40:34,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:34,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:34,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:34,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:34,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:34,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:34,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:34,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:34,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:40:34,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:34,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:40:34,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:34,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:34,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:34,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:40:34,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:34,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:40:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:34,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:34,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:34,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-26 20:40:34,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:34,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-26 20:40:34,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-26 20:40:34,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:34,368 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:40:34,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1644803155] [2020-10-26 20:40:34,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:34,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:40:34,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993061249] [2020-10-26 20:40:34,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:40:34,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:34,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:40:34,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:34,371 INFO L87 Difference]: Start difference. First operand 1858 states and 2183 transitions. Second operand 7 states. [2020-10-26 20:40:34,729 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-26 20:40:35,590 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-26 20:40:38,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:38,874 INFO L93 Difference]: Finished difference Result 5725 states and 7041 transitions. [2020-10-26 20:40:38,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:40:38,883 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 155 [2020-10-26 20:40:38,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:38,905 INFO L225 Difference]: With dead ends: 5725 [2020-10-26 20:40:38,905 INFO L226 Difference]: Without dead ends: 3873 [2020-10-26 20:40:38,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:40:38,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3873 states. [2020-10-26 20:40:39,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3873 to 3855. [2020-10-26 20:40:39,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3855 states. [2020-10-26 20:40:39,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3855 states to 3855 states and 4616 transitions. [2020-10-26 20:40:39,058 INFO L78 Accepts]: Start accepts. Automaton has 3855 states and 4616 transitions. Word has length 155 [2020-10-26 20:40:39,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:39,060 INFO L481 AbstractCegarLoop]: Abstraction has 3855 states and 4616 transitions. [2020-10-26 20:40:39,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:39,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3855 states and 4616 transitions. [2020-10-26 20:40:39,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-26 20:40:39,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:39,069 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:39,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:40:39,069 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:39,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:39,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1966176006, now seen corresponding path program 1 times [2020-10-26 20:40:39,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:39,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596301524] [2020-10-26 20:40:39,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:39,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:39,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:39,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:39,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-26 20:40:39,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:40:39,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-10-26 20:40:39,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:39,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:39,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-26 20:40:39,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-26 20:40:39,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:39,862 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:40:39,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:39,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:39,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:39,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:39,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:39,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:40:39,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:39,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:39,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:39,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:39,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:39,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:39,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:39,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:39,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:40:39,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:39,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:40:39,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:39,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:39,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:39,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:39,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:39,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:40:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:39,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:39,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:39,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:40:39,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:39,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:40:39,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:39,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:39,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:39,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:40:39,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 20:40:40,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596301524] [2020-10-26 20:40:40,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:40,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:40:40,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503060309] [2020-10-26 20:40:40,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:40:40,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:40,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:40:40,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:40:40,080 INFO L87 Difference]: Start difference. First operand 3855 states and 4616 transitions. Second operand 5 states. [2020-10-26 20:40:40,591 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:40:42,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:42,142 INFO L93 Difference]: Finished difference Result 6885 states and 8237 transitions. [2020-10-26 20:40:42,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:40:42,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-10-26 20:40:42,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:42,164 INFO L225 Difference]: With dead ends: 6885 [2020-10-26 20:40:42,165 INFO L226 Difference]: Without dead ends: 3857 [2020-10-26 20:40:42,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:40:42,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3857 states. [2020-10-26 20:40:42,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3857 to 3853. [2020-10-26 20:40:42,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3853 states. [2020-10-26 20:40:42,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3853 states to 3853 states and 4589 transitions. [2020-10-26 20:40:42,288 INFO L78 Accepts]: Start accepts. Automaton has 3853 states and 4589 transitions. Word has length 156 [2020-10-26 20:40:42,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:42,289 INFO L481 AbstractCegarLoop]: Abstraction has 3853 states and 4589 transitions. [2020-10-26 20:40:42,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:40:42,289 INFO L276 IsEmpty]: Start isEmpty. Operand 3853 states and 4589 transitions. [2020-10-26 20:40:42,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-26 20:40:42,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:42,298 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:42,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:40:42,298 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:42,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:42,299 INFO L82 PathProgramCache]: Analyzing trace with hash 754290771, now seen corresponding path program 1 times [2020-10-26 20:40:42,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:42,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197520237] [2020-10-26 20:40:42,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:42,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:42,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:42,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:44,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:44,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:44,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:45,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:45,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-26 20:40:45,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:40:45,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3348 [2020-10-26 20:40:45,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:45,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-26 20:40:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:40:45,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:45,846 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:40:45,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:45,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:45,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:45,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:45,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:45,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:40:45,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:45,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:45,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:45,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:45,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:45,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:45,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:45,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:45,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:40:45,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:45,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:40:45,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:45,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:45,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:45,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:45,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:45,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:40:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:45,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:45,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:45,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:40:45,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:45,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:40:45,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:45,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:45,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:45,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 20:40:45,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:45,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 20:40:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:45,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:45,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:45,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:40:45,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:45,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:40:45,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:45,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:45,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:45,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:40:45,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:46,042 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-26 20:40:46,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1197520237] [2020-10-26 20:40:46,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:46,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:40:46,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136339506] [2020-10-26 20:40:46,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:40:46,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:46,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:40:46,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:40:46,045 INFO L87 Difference]: Start difference. First operand 3853 states and 4589 transitions. Second operand 8 states. [2020-10-26 20:40:46,222 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:40:47,143 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:40:48,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:48,802 INFO L93 Difference]: Finished difference Result 6804 states and 8080 transitions. [2020-10-26 20:40:48,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:40:48,803 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 169 [2020-10-26 20:40:48,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:48,824 INFO L225 Difference]: With dead ends: 6804 [2020-10-26 20:40:48,824 INFO L226 Difference]: Without dead ends: 3871 [2020-10-26 20:40:48,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:40:48,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3871 states. [2020-10-26 20:40:48,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3871 to 3850. [2020-10-26 20:40:48,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3850 states. [2020-10-26 20:40:48,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 4483 transitions. [2020-10-26 20:40:48,951 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 4483 transitions. Word has length 169 [2020-10-26 20:40:48,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:48,953 INFO L481 AbstractCegarLoop]: Abstraction has 3850 states and 4483 transitions. [2020-10-26 20:40:48,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:40:48,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 4483 transitions. [2020-10-26 20:40:48,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-26 20:40:48,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:48,965 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:48,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:40:48,966 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:48,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:48,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1382674893, now seen corresponding path program 1 times [2020-10-26 20:40:48,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:48,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308541085] [2020-10-26 20:40:48,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:49,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:49,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:49,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:50,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:50,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-26 20:40:50,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:40:50,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1252 [2020-10-26 20:40:50,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:50,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:50,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-26 20:40:50,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:40:50,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:50,442 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:40:50,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:50,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:50,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:50,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:50,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:50,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:40:50,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:50,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:50,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:50,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:50,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:50,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:40:50,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:50,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:40:50,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:50,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:50,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:50,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:50,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:50,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:40:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:50,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:50,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:50,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:40:50,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:50,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:40:50,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 20:40:50,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:50,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 20:40:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:50,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:50,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:50,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-26 20:40:50,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:50,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-26 20:40:50,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:50,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:50,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:50,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-26 20:40:50,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:50,691 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-26 20:40:50,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308541085] [2020-10-26 20:40:50,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:50,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:40:50,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657082534] [2020-10-26 20:40:50,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:40:50,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:50,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:40:50,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:50,693 INFO L87 Difference]: Start difference. First operand 3850 states and 4483 transitions. Second operand 7 states. [2020-10-26 20:40:51,042 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-26 20:40:51,515 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-26 20:40:54,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:54,671 INFO L93 Difference]: Finished difference Result 8631 states and 10144 transitions. [2020-10-26 20:40:54,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:40:54,672 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-10-26 20:40:54,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:54,696 INFO L225 Difference]: With dead ends: 8631 [2020-10-26 20:40:54,696 INFO L226 Difference]: Without dead ends: 4353 [2020-10-26 20:40:54,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:40:54,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4353 states. [2020-10-26 20:40:54,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4353 to 2907. [2020-10-26 20:40:54,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2907 states. [2020-10-26 20:40:54,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2907 states to 2907 states and 3278 transitions. [2020-10-26 20:40:54,817 INFO L78 Accepts]: Start accepts. Automaton has 2907 states and 3278 transitions. Word has length 198 [2020-10-26 20:40:54,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:54,817 INFO L481 AbstractCegarLoop]: Abstraction has 2907 states and 3278 transitions. [2020-10-26 20:40:54,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:54,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2907 states and 3278 transitions. [2020-10-26 20:40:54,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-26 20:40:54,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:54,825 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, 3, 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] [2020-10-26 20:40:54,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:40:54,825 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:54,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:54,826 INFO L82 PathProgramCache]: Analyzing trace with hash 873764717, now seen corresponding path program 1 times [2020-10-26 20:40:54,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:54,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402417072] [2020-10-26 20:40:54,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:54,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:54,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:55,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:56,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:56,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-26 20:40:56,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:40:56,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1343 [2020-10-26 20:40:56,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:56,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:56,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-26 20:40:56,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:40:56,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:56,386 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:40:56,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:56,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:56,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:56,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:56,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:56,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:40:56,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:56,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:56,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:56,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:56,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:56,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:56,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:56,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:56,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:40:56,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:56,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-26 20:40:56,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-26 20:40:56,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:56,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-26 20:40:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:56,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:56,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:56,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-26 20:40:56,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:56,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-26 20:40:56,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:56,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:56,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:56,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:40:56,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:40:56,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402417072] [2020-10-26 20:40:56,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:56,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:40:56,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380059621] [2020-10-26 20:40:56,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:40:56,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:56,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:40:56,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:56,693 INFO L87 Difference]: Start difference. First operand 2907 states and 3278 transitions. Second operand 7 states. [2020-10-26 20:40:57,151 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:40:58,179 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:40:59,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:59,806 INFO L93 Difference]: Finished difference Result 6990 states and 8009 transitions. [2020-10-26 20:40:59,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:40:59,807 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2020-10-26 20:40:59,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:59,825 INFO L225 Difference]: With dead ends: 6990 [2020-10-26 20:40:59,825 INFO L226 Difference]: Without dead ends: 4093 [2020-10-26 20:40:59,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:40:59,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4093 states. [2020-10-26 20:40:59,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4093 to 3945. [2020-10-26 20:40:59,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3945 states. [2020-10-26 20:40:59,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 4408 transitions. [2020-10-26 20:40:59,941 INFO L78 Accepts]: Start accepts. Automaton has 3945 states and 4408 transitions. Word has length 200 [2020-10-26 20:40:59,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:59,942 INFO L481 AbstractCegarLoop]: Abstraction has 3945 states and 4408 transitions. [2020-10-26 20:40:59,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:59,942 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 4408 transitions. [2020-10-26 20:40:59,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-26 20:40:59,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:59,950 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:59,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:40:59,950 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:59,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:59,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1150236241, now seen corresponding path program 1 times [2020-10-26 20:40:59,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:59,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048714197] [2020-10-26 20:40:59,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:59,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:00,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:00,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:00,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:04,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:04,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-26 20:41:04,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:41:04,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-26 20:41:04,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:04,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 20:41:04,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:41:04,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-26 20:41:04,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:05,204 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:41:05,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:41:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:05,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:05,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:05,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:41:05,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:05,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:41:05,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:05,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:41:05,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:05,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:41:05,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:05,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:41:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:05,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:05,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:05,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:05,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:41:05,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:41:05,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:41:05,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:05,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:05,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:05,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:41:05,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:05,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:41:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:05,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:05,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:05,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:05,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-26 20:41:05,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:41:05,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-26 20:41:05,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:05,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:05,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:05,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-26 20:41:05,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:05,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-26 20:41:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:05,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:05,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:05,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-26 20:41:05,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:05,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:41:05,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:41:05,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:05,613 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 98 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-26 20:41:05,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048714197] [2020-10-26 20:41:05,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:41:05,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:41:05,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334078857] [2020-10-26 20:41:05,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 20:41:05,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:41:05,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 20:41:05,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:41:05,616 INFO L87 Difference]: Start difference. First operand 3945 states and 4408 transitions. Second operand 9 states. [2020-10-26 20:41:05,799 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:41:07,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:41:07,082 INFO L93 Difference]: Finished difference Result 6532 states and 7235 transitions. [2020-10-26 20:41:07,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:41:07,083 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 206 [2020-10-26 20:41:07,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:41:07,091 INFO L225 Difference]: With dead ends: 6532 [2020-10-26 20:41:07,092 INFO L226 Difference]: Without dead ends: 1959 [2020-10-26 20:41:07,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:41:07,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2020-10-26 20:41:07,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1809. [2020-10-26 20:41:07,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1809 states. [2020-10-26 20:41:07,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 1951 transitions. [2020-10-26 20:41:07,155 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 1951 transitions. Word has length 206 [2020-10-26 20:41:07,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:41:07,156 INFO L481 AbstractCegarLoop]: Abstraction has 1809 states and 1951 transitions. [2020-10-26 20:41:07,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 20:41:07,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 1951 transitions. [2020-10-26 20:41:07,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-26 20:41:07,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:41:07,163 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-26 20:41:07,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:41:07,163 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:41:07,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:41:07,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1837556008, now seen corresponding path program 1 times [2020-10-26 20:41:07,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:41:07,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581977872] [2020-10-26 20:41:07,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:41:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:07,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:07,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:08,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:08,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:08,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-26 20:41:08,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:41:08,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1515 [2020-10-26 20:41:08,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:08,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:08,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-26 20:41:08,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:41:08,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:08,932 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:41:08,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:41:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:08,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:08,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:08,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:41:08,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:08,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:41:08,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:08,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:08,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:08,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:41:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:08,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:09,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:09,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-26 20:41:09,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:09,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:41:09,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:09,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:09,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 20:41:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:09,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:09,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:09,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-26 20:41:09,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:09,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:41:09,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:09,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:41:09,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:09,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:41:09,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:09,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 20:41:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:09,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:09,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:09,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-26 20:41:09,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:09,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-26 20:41:09,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:09,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:09,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-26 20:41:09,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:09,437 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 217 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-26 20:41:09,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581977872] [2020-10-26 20:41:09,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:41:09,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:41:09,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639203626] [2020-10-26 20:41:09,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:41:09,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:41:09,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:41:09,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:41:09,440 INFO L87 Difference]: Start difference. First operand 1809 states and 1951 transitions. Second operand 7 states. [2020-10-26 20:41:10,271 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-26 20:41:10,637 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-26 20:41:12,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:41:12,084 INFO L93 Difference]: Finished difference Result 3026 states and 3254 transitions. [2020-10-26 20:41:12,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:41:12,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 256 [2020-10-26 20:41:12,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:41:12,091 INFO L225 Difference]: With dead ends: 3026 [2020-10-26 20:41:12,092 INFO L226 Difference]: Without dead ends: 1505 [2020-10-26 20:41:12,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:41:12,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2020-10-26 20:41:12,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1503. [2020-10-26 20:41:12,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2020-10-26 20:41:12,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1602 transitions. [2020-10-26 20:41:12,140 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1602 transitions. Word has length 256 [2020-10-26 20:41:12,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:41:12,140 INFO L481 AbstractCegarLoop]: Abstraction has 1503 states and 1602 transitions. [2020-10-26 20:41:12,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:41:12,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1602 transitions. [2020-10-26 20:41:12,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-26 20:41:12,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:41:12,147 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:41:12,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:41:12,147 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:41:12,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:41:12,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1866364166, now seen corresponding path program 1 times [2020-10-26 20:41:12,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:41:12,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248303633] [2020-10-26 20:41:12,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:41:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:12,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:12,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:12,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:12,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-26 20:41:12,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:41:12,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 535 [2020-10-26 20:41:12,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:12,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:12,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-26 20:41:12,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-26 20:41:12,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:12,969 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:41:12,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:41:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:12,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:12,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:12,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:41:12,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:12,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:41:12,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:12,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:12,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:12,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:12,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:13,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:41:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:13,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:13,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:13,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:41:13,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:13,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:41:13,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:13,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:13,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:13,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:13,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:13,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-26 20:41:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:13,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:13,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:13,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 20:41:13,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:13,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:41:13,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:13,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:13,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:13,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:13,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:13,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-26 20:41:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:13,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:13,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:13,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:41:13,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:13,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:41:13,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:13,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:41:13,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:13,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:41:13,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:13,195 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 148 proven. 3 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-26 20:41:13,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248303633] [2020-10-26 20:41:13,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:41:13,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:41:13,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585940756] [2020-10-26 20:41:13,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:41:13,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:41:13,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:41:13,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:41:13,199 INFO L87 Difference]: Start difference. First operand 1503 states and 1602 transitions. Second operand 6 states. [2020-10-26 20:41:14,293 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:41:15,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:41:15,061 INFO L93 Difference]: Finished difference Result 2698 states and 2864 transitions. [2020-10-26 20:41:15,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:41:15,062 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 268 [2020-10-26 20:41:15,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:41:15,065 INFO L225 Difference]: With dead ends: 2698 [2020-10-26 20:41:15,066 INFO L226 Difference]: Without dead ends: 1337 [2020-10-26 20:41:15,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:41:15,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2020-10-26 20:41:15,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1337. [2020-10-26 20:41:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2020-10-26 20:41:15,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1409 transitions. [2020-10-26 20:41:15,101 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1409 transitions. Word has length 268 [2020-10-26 20:41:15,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:41:15,101 INFO L481 AbstractCegarLoop]: Abstraction has 1337 states and 1409 transitions. [2020-10-26 20:41:15,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:41:15,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1409 transitions. [2020-10-26 20:41:15,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-10-26 20:41:15,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:41:15,110 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2020-10-26 20:41:15,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:41:15,110 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:41:15,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:41:15,111 INFO L82 PathProgramCache]: Analyzing trace with hash 131755283, now seen corresponding path program 1 times [2020-10-26 20:41:15,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:41:15,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1465721085] [2020-10-26 20:41:15,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:41:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:15,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:15,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:15,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:16,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:18,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:20,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:20,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 368 [2020-10-26 20:41:20,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:41:20,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-26 20:41:20,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:20,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-26 20:41:20,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-26 20:41:20,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:20,396 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:41:20,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:41:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:20,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:20,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:20,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:41:20,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:20,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:41:20,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:20,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:20,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:20,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:20,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:41:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:20,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:20,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:20,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:41:20,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:20,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:41:20,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:20,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:20,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:20,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:20,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-26 20:41:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:20,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:20,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:20,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 20:41:20,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:20,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 20:41:20,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:20,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:41:20,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:20,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 20:41:20,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:20,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-26 20:41:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:20,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:20,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:20,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-26 20:41:20,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:20,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-26 20:41:20,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:20,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:20,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:20,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-26 20:41:20,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:20,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-26 20:41:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:20,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:20,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:20,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-26 20:41:20,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:20,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:41:20,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:20,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:20,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-26 20:41:20,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:20,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:20,921 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 330 proven. 53 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-10-26 20:41:20,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1465721085] [2020-10-26 20:41:20,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:41:20,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:41:20,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235770306] [2020-10-26 20:41:20,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:41:20,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:41:20,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:41:20,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:41:20,924 INFO L87 Difference]: Start difference. First operand 1337 states and 1409 transitions. Second operand 7 states. [2020-10-26 20:41:21,150 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:41:22,933 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:41:23,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:41:23,069 INFO L93 Difference]: Finished difference Result 2370 states and 2523 transitions. [2020-10-26 20:41:23,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:41:23,070 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 350 [2020-10-26 20:41:23,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:41:23,070 INFO L225 Difference]: With dead ends: 2370 [2020-10-26 20:41:23,070 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:41:23,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:41:23,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:41:23,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:41:23,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:41:23,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:41:23,076 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 350 [2020-10-26 20:41:23,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:41:23,077 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:41:23,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:41:23,077 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:41:23,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:41:23,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 20:41:23,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:41:24,020 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 149 [2020-10-26 20:41:24,162 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 149 [2020-10-26 20:41:24,420 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 31 [2020-10-26 20:41:27,269 WARN L193 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 216 DAG size of output: 83 [2020-10-26 20:41:27,433 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:41:28,349 WARN L193 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 53 [2020-10-26 20:41:29,184 WARN L193 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 53 [2020-10-26 20:41:30,017 WARN L193 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 53 [2020-10-26 20:41:30,022 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:41:30,022 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:41:30,022 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:41:30,022 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:41:30,023 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:41:30,023 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)|)) [2020-10-26 20:41:30,023 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:41:30,023 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-26 20:41:30,023 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-26 20:41:30,023 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-26 20:41:30,023 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-26 20:41:30,023 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-26 20:41:30,024 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-26 20:41:30,024 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-26 20:41:30,024 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:41:30,024 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-26 20:41:30,024 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:41:30,024 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-26 20:41:30,024 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:41:30,024 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:41:30,024 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-26 20:41:30,024 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-26 20:41:30,025 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,025 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,025 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,025 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,025 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,025 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-26 20:41:30,025 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-26 20:41:30,025 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-26 20:41:30,025 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-26 20:41:30,025 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-26 20:41:30,025 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-26 20:41:30,026 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-26 20:41:30,026 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-26 20:41:30,026 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-26 20:41:30,026 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-26 20:41:30,026 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:41:30,026 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:41:30,026 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-26 20:41:30,026 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,026 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,027 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,027 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,027 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-26 20:41:30,027 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,027 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-26 20:41:30,027 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-26 20:41:30,027 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-26 20:41:30,027 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-26 20:41:30,027 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-26 20:41:30,027 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-26 20:41:30,028 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-26 20:41:30,028 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:41:30,028 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:41:30,028 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-26 20:41:30,028 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-26 20:41:30,028 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-26 20:41:30,028 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:41:30,028 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:41:30,028 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-26 20:41:30,028 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,029 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,029 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,029 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,029 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,029 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:41:30,029 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-26 20:41:30,029 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:41:30,029 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-26 20:41:30,029 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-26 20:41:30,029 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-26 20:41:30,030 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-26 20:41:30,030 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-26 20:41:30,030 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-26 20:41:30,030 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-26 20:41:30,030 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-26 20:41:30,030 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,030 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,030 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,030 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,030 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,030 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-26 20:41:30,031 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-26 20:41:30,031 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-26 20:41:30,031 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-26 20:41:30,031 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-26 20:41:30,031 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-26 20:41:30,031 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-26 20:41:30,031 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-26 20:41:30,031 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-26 20:41:30,031 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-26 20:41:30,031 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-26 20:41:30,032 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-26 20:41:30,032 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-26 20:41:30,032 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,032 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,032 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,032 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,032 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,032 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-26 20:41:30,032 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-26 20:41:30,032 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-26 20:41:30,032 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-26 20:41:30,032 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-26 20:41:30,033 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-26 20:41:30,033 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-26 20:41:30,033 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-26 20:41:30,033 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-26 20:41:30,033 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,033 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,033 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-26 20:41:30,033 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-26 20:41:30,033 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-26 20:41:30,033 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-26 20:41:30,033 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:41:30,034 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-26 20:41:30,034 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:41:30,034 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,034 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,034 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,034 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,034 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-26 20:41:30,034 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,034 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:41:30,034 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,034 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:41:30,035 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:41:30,035 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:41:30,035 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-26 20:41:30,035 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-26 20:41:30,035 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-26 20:41:30,035 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-26 20:41:30,035 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-26 20:41:30,035 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-26 20:41:30,035 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-26 20:41:30,035 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-26 20:41:30,036 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-26 20:41:30,036 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-26 20:41:30,036 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-26 20:41:30,036 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,036 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,036 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,036 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,036 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,036 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,036 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-26 20:41:30,037 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-26 20:41:30,037 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-26 20:41:30,037 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-26 20:41:30,037 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-26 20:41:30,037 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-26 20:41:30,037 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-26 20:41:30,037 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-26 20:41:30,037 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-26 20:41:30,037 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-26 20:41:30,037 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-26 20:41:30,037 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,038 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,038 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,038 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,038 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,038 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,038 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-26 20:41:30,038 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-26 20:41:30,042 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-26 20:41:30,042 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-26 20:41:30,042 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-26 20:41:30,042 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-26 20:41:30,042 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-26 20:41:30,043 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse19 (not (= 10 |old(~a28~0)|))) (.cse18 (= ~a28~0 10)) (.cse2 (not (= |old(~a19~0)| 1))) (.cse16 (not (<= |old(~a25~0)| 0))) (.cse8 (= ~a19~0 1)) (.cse13 (= ~a25~0 |old(~a25~0)|)) (.cse3 (not (= 0 |old(~a11~0)|))) (.cse5 (= ~a28~0 |old(~a28~0)|)) (.cse7 (= ~a11~0 |old(~a11~0)|)) (.cse1 (not (<= |old(~a25~0)| 1))) (.cse0 (not (<= |old(~a17~0)| 8))) (.cse11 (not (<= |old(~a11~0)| 1))) (.cse17 (not (<= 1 |old(~a11~0)|))) (.cse4 (not (<= 1 |old(~a25~0)|))) (.cse6 (= ~a17~0 |old(~a17~0)|)) (.cse12 (<= 1 ~a11~0)) (.cse9 (<= 1 ~a25~0)) (.cse14 (<= ~a11~0 1)) (.cse10 (<= ~a25~0 1)) (.cse15 (= ~a19~0 |old(~a19~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (and .cse5 .cse6 .cse7 .cse8 .cse9 .cse10)) (or .cse0 .cse11 (and .cse5 .cse6 .cse12 .cse13 .cse14 .cse15) .cse16 .cse17) (or .cse1 .cse11 (not (<= |old(~a17~0)| 7)) .cse17 .cse4 (and .cse5 .cse6 .cse12 .cse9 .cse14 .cse10 .cse15)) (or (and .cse6 .cse7 .cse8 .cse13 .cse18) .cse19 .cse2) (or .cse0 (and .cse5 .cse6 .cse7 .cse13 .cse15) .cse3 .cse16) (or .cse19 .cse11 .cse16 (and .cse6 .cse12 .cse13 .cse14 .cse15 .cse18) .cse17) (or .cse0 .cse1 .cse19 .cse3 (and .cse6 .cse7 (= ~a25~0 1) .cse15 .cse18) .cse4) (or .cse11 .cse2 (not (<= 11 |old(~a28~0)|)) .cse16 .cse17 (and .cse5 .cse6 .cse12 .cse8 .cse13 .cse14)) (or (not (<= |old(~a28~0)| 7)) .cse0 .cse1 .cse3 .cse4 (and .cse5 .cse6 .cse7 .cse9 .cse10 .cse15)) (or .cse1 .cse0 .cse11 (not (= 9 |old(~a28~0)|)) .cse17 .cse4 (and .cse6 .cse12 .cse9 .cse14 (= ~a28~0 9) .cse10 .cse15)))) [2020-10-26 20:41:30,043 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-26 20:41:30,043 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-26 20:41:30,043 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-26 20:41:30,043 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-26 20:41:30,043 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-26 20:41:30,043 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-26 20:41:30,044 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-26 20:41:30,044 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,044 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,044 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,044 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,044 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,044 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,044 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-26 20:41:30,044 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-26 20:41:30,044 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-26 20:41:30,044 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,045 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-26 20:41:30,046 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-26 20:41:30,046 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-26 20:41:30,046 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-26 20:41:30,046 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-26 20:41:30,046 INFO L270 CegarLoopResult]: At program point L495(line 495) the Hoare annotation is: (let ((.cse5 (not (= |old(~a19~0)| 1))) (.cse2 (not (<= |old(~a11~0)| 1))) (.cse3 (not (<= 1 |old(~a11~0)|))) (.cse0 (not (<= |old(~a25~0)| 1))) (.cse4 (not (= 10 |old(~a28~0)|))) (.cse1 (not (<= |old(~a17~0)| 8))) (.cse6 (not (= 0 |old(~a11~0)|))) (.cse7 (not (<= |old(~a25~0)| 0)))) (and (or .cse0 .cse1 .cse2 (not (= 9 |old(~a28~0)|)) .cse3) (or .cse4 .cse5) (or .cse1 .cse0 .cse5 .cse6) (or (not (<= |old(~a28~0)| 7)) .cse1 .cse0 .cse6) (or .cse4 .cse2 .cse7 .cse3) (or .cse2 .cse5 (not (<= 11 |old(~a28~0)|)) .cse7 .cse3) (or .cse0 .cse2 (not (<= |old(~a17~0)| 7)) .cse3) (or .cse1 .cse2 .cse7 .cse3) (or .cse1 .cse0 .cse4 .cse6) (or .cse1 .cse6 .cse7))) [2020-10-26 20:41:30,046 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-26 20:41:30,046 INFO L274 CegarLoopResult]: For program point L495-1(line 495) no Hoare annotation was computed. [2020-10-26 20:41:30,046 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-26 20:41:30,046 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-26 20:41:30,046 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-26 20:41:30,046 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-26 20:41:30,046 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:41:30,047 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:41:30,047 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-26 20:41:30,047 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-26 20:41:30,047 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-26 20:41:30,047 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,047 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,047 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,047 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,047 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:30,047 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-26 20:41:30,047 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-26 20:41:30,047 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-26 20:41:30,047 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-26 20:41:30,047 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:41:30,047 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (= ~a25~0 0) (= 7 ~a28~0) (= ~a11~0 0) (<= ~a17~0 8)) [2020-10-26 20:41:30,048 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:41:30,048 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:41:30,048 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse1 (<= 1 ~a25~0)) (.cse0 (<= 1 ~a11~0)) (.cse2 (<= ~a11~0 1)) (.cse4 (<= ~a25~0 0)) (.cse6 (<= ~a17~0 |old(~a17~0)|)) (.cse7 (= ~a11~0 0)) (.cse8 (<= |old(~a17~0)| ~a17~0)) (.cse3 (<= ~a25~0 1)) (.cse9 (= ~a19~0 1)) (.cse5 (= ~a28~0 10))) (or (not (= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2 (= ~a28~0 9) .cse3 (<= ~a17~0 8)) (and .cse0 .cse2 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 (<= ~a17~0 7)) (and .cse6 .cse7 .cse8 .cse4) (not (= 0 |old(~a25~0)|)) (and .cse0 (<= 11 ~a28~0) .cse9 .cse2 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse6 .cse7 .cse8 .cse3 (<= ~a28~0 7)) (not (= 0 |old(~a11~0)|)) (and .cse0 .cse6 .cse2 .cse8 .cse4) (and .cse6 .cse7 .cse8 .cse3 .cse5) (and .cse9 .cse6 .cse7 .cse8 .cse3) (and .cse9 .cse5) (not (= 7 |old(~a28~0)|)))) [2020-10-26 20:41:30,048 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (not (= 0 |old(~a11~0)|)) (and (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= 7 ~a28~0)) (not (= 0 |old(~a25~0)|)) (not (= 7 |old(~a28~0)|))) [2020-10-26 20:41:30,048 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:41:30,048 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:41:30,048 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse1 (<= 1 ~a25~0)) (.cse0 (<= 1 ~a11~0)) (.cse2 (<= ~a11~0 1)) (.cse4 (<= ~a25~0 0)) (.cse6 (<= ~a17~0 |old(~a17~0)|)) (.cse7 (= ~a11~0 0)) (.cse8 (<= |old(~a17~0)| ~a17~0)) (.cse3 (<= ~a25~0 1)) (.cse9 (= ~a19~0 1)) (.cse5 (= ~a28~0 10))) (or (not (= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2 (= ~a28~0 9) .cse3 (<= ~a17~0 8)) (and .cse0 .cse2 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 (<= ~a17~0 7)) (and .cse6 .cse7 .cse8 .cse4) (not (= 0 |old(~a25~0)|)) (and .cse0 (<= 11 ~a28~0) .cse9 .cse2 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse6 .cse7 .cse8 .cse3 (<= ~a28~0 7)) (not (= 0 |old(~a11~0)|)) (and .cse0 .cse6 .cse2 .cse8 .cse4) (and .cse6 .cse7 .cse8 .cse3 .cse5) (and .cse9 .cse6 .cse7 .cse8 .cse3) (and .cse9 .cse5) (not (= 7 |old(~a28~0)|)))) [2020-10-26 20:41:30,048 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-26 20:41:30,048 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-26 20:41:30,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:41:30 BoogieIcfgContainer [2020-10-26 20:41:30,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:41:30,078 INFO L168 Benchmark]: Toolchain (without parser) took 91789.36 ms. Allocated memory was 155.2 MB in the beginning and 974.1 MB in the end (delta: 818.9 MB). Free memory was 128.9 MB in the beginning and 621.2 MB in the end (delta: -492.3 MB). Peak memory consumption was 581.0 MB. Max. memory is 8.0 GB. [2020-10-26 20:41:30,079 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory is still 127.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:41:30,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 804.52 ms. Allocated memory is still 155.2 MB. Free memory was 128.3 MB in the beginning and 135.2 MB in the end (delta: -6.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. [2020-10-26 20:41:30,080 INFO L168 Benchmark]: Boogie Preprocessor took 169.11 ms. Allocated memory is still 155.2 MB. Free memory was 135.2 MB in the beginning and 130.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:41:30,081 INFO L168 Benchmark]: RCFGBuilder took 1730.66 ms. Allocated memory is still 155.2 MB. Free memory was 129.9 MB in the beginning and 111.7 MB in the end (delta: 18.2 MB). Peak memory consumption was 84.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:41:30,081 INFO L168 Benchmark]: TraceAbstraction took 89067.16 ms. Allocated memory was 155.2 MB in the beginning and 974.1 MB in the end (delta: 818.9 MB). Free memory was 111.2 MB in the beginning and 621.2 MB in the end (delta: -510.0 MB). Peak memory consumption was 562.7 MB. Max. memory is 8.0 GB. [2020-10-26 20:41:30,084 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 155.2 MB. Free memory is still 127.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 804.52 ms. Allocated memory is still 155.2 MB. Free memory was 128.3 MB in the beginning and 135.2 MB in the end (delta: -6.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 169.11 ms. Allocated memory is still 155.2 MB. Free memory was 135.2 MB in the beginning and 130.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1730.66 ms. Allocated memory is still 155.2 MB. Free memory was 129.9 MB in the beginning and 111.7 MB in the end (delta: 18.2 MB). Peak memory consumption was 84.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 89067.16 ms. Allocated memory was 155.2 MB in the beginning and 974.1 MB in the end (delta: 818.9 MB). Free memory was 111.2 MB in the beginning and 621.2 MB in the end (delta: -510.0 MB). Peak memory consumption was 562.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: (((((((((((((!(\old(a19) == 1) || (((((1 <= a11 && 1 <= a25) && a11 <= 1) && a28 == 9) && a25 <= 1) && a17 <= 8)) || (((1 <= a11 && a11 <= 1) && a25 <= 0) && a28 == 10)) || ((((1 <= a11 && 1 <= a25) && a11 <= 1) && a25 <= 1) && a17 <= 7)) || (((a17 <= \old(a17) && a11 == 0) && \old(a17) <= a17) && a25 <= 0)) || !(0 == \old(a25))) || ((((1 <= a11 && 11 <= a28) && a19 == 1) && a11 <= 1) && a25 <= 0)) || !(\old(a17) <= 8)) || ((((a17 <= \old(a17) && a11 == 0) && \old(a17) <= a17) && a25 <= 1) && a28 <= 7)) || !(0 == \old(a11))) || ((((1 <= a11 && a17 <= \old(a17)) && a11 <= 1) && \old(a17) <= a17) && a25 <= 0)) || ((((a17 <= \old(a17) && a11 == 0) && \old(a17) <= a17) && a25 <= 1) && a28 == 10)) || ((((a19 == 1 && a17 <= \old(a17)) && a11 == 0) && \old(a17) <= a17) && a25 <= 1)) || (a19 == 1 && a28 == 10)) || !(7 == \old(a28)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 81.9s, OverallIterations: 14, TraceHistogramMax: 5, AutomataDifference: 42.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 568 SDtfs, 6447 SDslu, 802 SDs, 0 SdLazy, 12972 SolverSat, 1687 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 244 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3945occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 1868 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 414 PreInvPairs, 466 NumberOfFragments, 1016 HoareAnnotationTreeSize, 414 FomulaSimplifications, 17764 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 5150 FormulaSimplificationTreeSizeReductionInter, 5.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 36.3s InterpolantComputationTime, 2601 NumberOfCodeBlocks, 2601 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2587 ConstructedInterpolants, 0 QuantifiedInterpolants, 1629609 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 1566/1648 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...