/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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/Problem14_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:45:10,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:45:10,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:45:10,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:45:10,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:45:10,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:45:10,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:45:10,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:45:10,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:45:10,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:45:10,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:45:10,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:45:10,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:45:10,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:45:10,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:45:10,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:45:10,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:45:10,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:45:10,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:45:10,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:45:10,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:45:10,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:45:10,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:45:10,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:45:10,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:45:10,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:45:10,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:45:10,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:45:10,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:45:10,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:45:10,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:45:10,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:45:10,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:45:10,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:45:10,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:45:10,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:45:10,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:45:10,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:45:10,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:45:10,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:45:10,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:45:10,652 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 [2020-10-28 12:45:10,687 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:45:10,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:45:10,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:45:10,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:45:10,690 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:45:10,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:45:10,690 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:45:10,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:45:10,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:45:10,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:45:10,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:45:10,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:45:10,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:45:10,692 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:45:10,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:45:10,693 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:45:10,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:45:10,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:45:10,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:45:10,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:45:10,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:45:10,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:45:10,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:45:10,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:45:10,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:45:10,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:45:10,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:45:10,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:45:10,697 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:45:10,697 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:45:11,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:45:11,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:45:11,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:45:11,118 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:45:11,119 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:45:11,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label01.c [2020-10-28 12:45:11,207 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b5c3312a/40df95c3b2d4416b945d71a18bec509c/FLAGf490b08b0 [2020-10-28 12:45:12,073 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:45:12,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label01.c [2020-10-28 12:45:12,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b5c3312a/40df95c3b2d4416b945d71a18bec509c/FLAGf490b08b0 [2020-10-28 12:45:12,249 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b5c3312a/40df95c3b2d4416b945d71a18bec509c [2020-10-28 12:45:12,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:45:12,267 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:45:12,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:45:12,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:45:12,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:45:12,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:45:12" (1/1) ... [2020-10-28 12:45:12,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@feb1eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:45:12, skipping insertion in model container [2020-10-28 12:45:12,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:45:12" (1/1) ... [2020-10-28 12:45:12,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:45:12,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:45:12,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:45:12,950 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:45:13,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:45:13,143 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:45:13,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:45:13 WrapperNode [2020-10-28 12:45:13,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:45:13,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:45:13,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:45:13,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:45:13,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:45:13" (1/1) ... [2020-10-28 12:45:13,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:45:13" (1/1) ... [2020-10-28 12:45:13,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:45:13" (1/1) ... [2020-10-28 12:45:13,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:45:13" (1/1) ... [2020-10-28 12:45:13,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:45:13" (1/1) ... [2020-10-28 12:45:13,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:45:13" (1/1) ... [2020-10-28 12:45:13,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:45:13" (1/1) ... [2020-10-28 12:45:13,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:45:13,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:45:13,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:45:13,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:45:13,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:45:13" (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 [2020-10-28 12:45:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:45:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:45:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:45:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:45:13,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:45:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:45:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:45:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:45:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:45:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:45:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:45:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:45:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:45:15,067 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:45:15,068 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:45:15,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:45:15 BoogieIcfgContainer [2020-10-28 12:45:15,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:45:15,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:45:15,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:45:15,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:45:15,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:45:12" (1/3) ... [2020-10-28 12:45:15,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4905dffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:45:15, skipping insertion in model container [2020-10-28 12:45:15,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:45:13" (2/3) ... [2020-10-28 12:45:15,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4905dffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:45:15, skipping insertion in model container [2020-10-28 12:45:15,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:45:15" (3/3) ... [2020-10-28 12:45:15,079 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label01.c [2020-10-28 12:45:15,092 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:45:15,097 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:45:15,111 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:45:15,140 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:45:15,140 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:45:15,140 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:45:15,140 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:45:15,140 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:45:15,140 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:45:15,141 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:45:15,141 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:45:15,162 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-28 12:45:15,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-28 12:45:15,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:45:15,172 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] [2020-10-28 12:45:15,172 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:45:15,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:45:15,178 INFO L82 PathProgramCache]: Analyzing trace with hash 767270766, now seen corresponding path program 1 times [2020-10-28 12:45:15,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:45:15,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083325115] [2020-10-28 12:45:15,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:45:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:15,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:15,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:15,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:45:15,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:15,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 608 [2020-10-28 12:45:15,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:15,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:15,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:45:15,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:45:15,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-28 12:45:15,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:45:16,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:45:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:16,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:16,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:16,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:45:16,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:16,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:45:16,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:16,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:16,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:45:16,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:45:16,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:45:16,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:16,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:45:16,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083325115] [2020-10-28 12:45:16,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:45:16,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 12:45:16,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679383202] [2020-10-28 12:45:16,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 12:45:16,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:45:16,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 12:45:16,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 12:45:16,296 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 4 states. [2020-10-28 12:45:18,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:45:18,558 INFO L93 Difference]: Finished difference Result 703 states and 1247 transitions. [2020-10-28 12:45:18,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:45:18,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2020-10-28 12:45:18,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:45:18,581 INFO L225 Difference]: With dead ends: 703 [2020-10-28 12:45:18,582 INFO L226 Difference]: Without dead ends: 381 [2020-10-28 12:45:18,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:45:18,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-28 12:45:18,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 375. [2020-10-28 12:45:18,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-10-28 12:45:18,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 605 transitions. [2020-10-28 12:45:18,701 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 605 transitions. Word has length 61 [2020-10-28 12:45:18,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:45:18,702 INFO L481 AbstractCegarLoop]: Abstraction has 375 states and 605 transitions. [2020-10-28 12:45:18,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 12:45:18,702 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 605 transitions. [2020-10-28 12:45:18,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-28 12:45:18,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:45:18,710 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:45:18,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:45:18,711 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:45:18,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:45:18,712 INFO L82 PathProgramCache]: Analyzing trace with hash 266371137, now seen corresponding path program 1 times [2020-10-28 12:45:18,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:45:18,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663644880] [2020-10-28 12:45:18,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:45:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:18,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:18,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:19,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:20,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:20,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-28 12:45:20,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:45:20,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1494 [2020-10-28 12:45:20,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:20,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:45:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:45:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:45:20,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:45:20,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:45:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:20,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:20,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:20,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:45:20,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:20,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:45:20,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:20,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:20,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:45:20,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:45:20,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:45:20,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:45:20,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:45:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:20,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:20,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:20,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 12:45:20,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:20,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-28 12:45:20,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:20,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:20,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:45:20,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:45:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:45:20,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:20,659 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:45:20,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663644880] [2020-10-28 12:45:20,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:45:20,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:45:20,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278935432] [2020-10-28 12:45:20,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:45:20,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:45:20,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:45:20,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:45:20,671 INFO L87 Difference]: Start difference. First operand 375 states and 605 transitions. Second operand 7 states. [2020-10-28 12:45:22,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:45:22,923 INFO L93 Difference]: Finished difference Result 1135 states and 1847 transitions. [2020-10-28 12:45:22,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:45:22,926 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 130 [2020-10-28 12:45:22,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:45:22,937 INFO L225 Difference]: With dead ends: 1135 [2020-10-28 12:45:22,938 INFO L226 Difference]: Without dead ends: 766 [2020-10-28 12:45:22,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:45:22,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2020-10-28 12:45:23,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 749. [2020-10-28 12:45:23,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2020-10-28 12:45:23,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1060 transitions. [2020-10-28 12:45:23,077 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1060 transitions. Word has length 130 [2020-10-28 12:45:23,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:45:23,077 INFO L481 AbstractCegarLoop]: Abstraction has 749 states and 1060 transitions. [2020-10-28 12:45:23,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:45:23,078 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1060 transitions. [2020-10-28 12:45:23,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-28 12:45:23,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:45:23,084 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:45:23,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:45:23,085 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:45:23,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:45:23,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1924300889, now seen corresponding path program 1 times [2020-10-28 12:45:23,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:45:23,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960009602] [2020-10-28 12:45:23,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:45:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:23,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:23,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:23,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:24,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:24,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-28 12:45:24,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:45:24,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1122 [2020-10-28 12:45:24,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:24,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:24,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:45:24,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:45:24,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:45:24,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:24,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:45:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:24,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:24,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:24,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:45:24,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:24,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:45:24,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:24,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:24,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:45:24,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:45:24,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:45:24,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:24,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:45:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:24,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:24,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:24,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:45:24,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:24,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 12:45:24,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:24,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:45:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:45:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 12:45:24,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:24,583 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:45:24,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960009602] [2020-10-28 12:45:24,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:45:24,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 12:45:24,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359364564] [2020-10-28 12:45:24,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:45:24,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:45:24,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:45:24,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:45:24,590 INFO L87 Difference]: Start difference. First operand 749 states and 1060 transitions. Second operand 8 states. [2020-10-28 12:45:26,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:45:26,724 INFO L93 Difference]: Finished difference Result 1692 states and 2464 transitions. [2020-10-28 12:45:26,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:45:26,726 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 131 [2020-10-28 12:45:26,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:45:26,739 INFO L225 Difference]: With dead ends: 1692 [2020-10-28 12:45:26,739 INFO L226 Difference]: Without dead ends: 949 [2020-10-28 12:45:26,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:45:26,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2020-10-28 12:45:26,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 937. [2020-10-28 12:45:26,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 937 states. [2020-10-28 12:45:26,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1252 transitions. [2020-10-28 12:45:26,810 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1252 transitions. Word has length 131 [2020-10-28 12:45:26,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:45:26,811 INFO L481 AbstractCegarLoop]: Abstraction has 937 states and 1252 transitions. [2020-10-28 12:45:26,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:45:26,812 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1252 transitions. [2020-10-28 12:45:26,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-28 12:45:26,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:45:26,831 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:45:26,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:45:26,834 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:45:26,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:45:26,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1699913673, now seen corresponding path program 1 times [2020-10-28 12:45:26,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:45:26,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1975460372] [2020-10-28 12:45:26,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:45:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:26,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:27,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:27,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:28,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:28,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-28 12:45:28,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:45:28,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1679 [2020-10-28 12:45:28,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:28,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:28,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:45:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:45:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:45:28,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:28,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:45:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:28,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:28,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:28,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:45:28,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:28,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 12:45:28,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:28,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:28,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:45:28,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:45:28,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:45:28,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:28,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:45:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:28,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:28,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:28,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:45:28,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:28,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-28 12:45:28,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:28,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:45:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:45:28,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:45:28,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:45:29,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1975460372] [2020-10-28 12:45:29,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:45:29,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:45:29,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414101718] [2020-10-28 12:45:29,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:45:29,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:45:29,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:45:29,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:45:29,004 INFO L87 Difference]: Start difference. First operand 937 states and 1252 transitions. Second operand 7 states. [2020-10-28 12:45:30,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:45:30,773 INFO L93 Difference]: Finished difference Result 1704 states and 2327 transitions. [2020-10-28 12:45:30,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:45:30,774 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 134 [2020-10-28 12:45:30,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:45:30,781 INFO L225 Difference]: With dead ends: 1704 [2020-10-28 12:45:30,781 INFO L226 Difference]: Without dead ends: 1141 [2020-10-28 12:45:30,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:45:30,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2020-10-28 12:45:30,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1121. [2020-10-28 12:45:30,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1121 states. [2020-10-28 12:45:30,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1454 transitions. [2020-10-28 12:45:30,824 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1454 transitions. Word has length 134 [2020-10-28 12:45:30,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:45:30,825 INFO L481 AbstractCegarLoop]: Abstraction has 1121 states and 1454 transitions. [2020-10-28 12:45:30,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:45:30,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1454 transitions. [2020-10-28 12:45:30,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-28 12:45:30,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:45:30,827 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:45:30,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:45:30,828 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:45:30,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:45:30,828 INFO L82 PathProgramCache]: Analyzing trace with hash -774973693, now seen corresponding path program 1 times [2020-10-28 12:45:30,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:45:30,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159448661] [2020-10-28 12:45:30,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:45:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:30,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:31,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:31,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:31,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-28 12:45:31,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:45:31,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-28 12:45:31,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:31,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:45:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-28 12:45:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 12:45:31,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:31,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:45:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:31,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:31,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:31,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:45:31,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:31,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:45:31,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:31,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:31,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:45:31,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:45:31,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:45:31,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:45:31,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:45:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:31,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:31,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:31,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 12:45:31,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:31,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 12:45:31,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:31,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:31,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:45:31,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:45:31,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:45:31,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:45:31,446 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:45:31,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159448661] [2020-10-28 12:45:31,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:45:31,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:45:31,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471885143] [2020-10-28 12:45:31,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:45:31,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:45:31,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:45:31,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:45:31,449 INFO L87 Difference]: Start difference. First operand 1121 states and 1454 transitions. Second operand 5 states. [2020-10-28 12:45:33,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:45:33,287 INFO L93 Difference]: Finished difference Result 2432 states and 3353 transitions. [2020-10-28 12:45:33,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:45:33,289 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2020-10-28 12:45:33,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:45:33,298 INFO L225 Difference]: With dead ends: 2432 [2020-10-28 12:45:33,298 INFO L226 Difference]: Without dead ends: 1499 [2020-10-28 12:45:33,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:45:33,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2020-10-28 12:45:33,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1311. [2020-10-28 12:45:33,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1311 states. [2020-10-28 12:45:33,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 1698 transitions. [2020-10-28 12:45:33,346 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 1698 transitions. Word has length 145 [2020-10-28 12:45:33,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:45:33,347 INFO L481 AbstractCegarLoop]: Abstraction has 1311 states and 1698 transitions. [2020-10-28 12:45:33,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:45:33,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 1698 transitions. [2020-10-28 12:45:33,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-28 12:45:33,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:45:33,352 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, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:45:33,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:45:33,352 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:45:33,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:45:33,353 INFO L82 PathProgramCache]: Analyzing trace with hash 713102568, now seen corresponding path program 1 times [2020-10-28 12:45:33,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:45:33,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726784594] [2020-10-28 12:45:33,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:45:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:33,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:33,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:33,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:34,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:35,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:36,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:36,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-28 12:45:36,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:45:36,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3576 [2020-10-28 12:45:36,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:36,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:36,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:45:36,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-28 12:45:36,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:45:36,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:37,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:45:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:37,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:37,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:37,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:45:37,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:37,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:45:37,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:37,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:37,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:45:37,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:45:37,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:45:37,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:37,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:45:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:37,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:37,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:37,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 12:45:37,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:37,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 12:45:37,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:37,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:37,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:45:37,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:45:37,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:45:37,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:37,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-28 12:45:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:37,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:37,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:37,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:45:37,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:37,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-28 12:45:37,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:37,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:37,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:45:37,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:45:37,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:45:37,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:37,570 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 186 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:45:37,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726784594] [2020-10-28 12:45:37,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:45:37,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:45:37,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913614038] [2020-10-28 12:45:37,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:45:37,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:45:37,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:45:37,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:45:37,572 INFO L87 Difference]: Start difference. First operand 1311 states and 1698 transitions. Second operand 8 states. [2020-10-28 12:45:39,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:45:39,977 INFO L93 Difference]: Finished difference Result 3020 states and 4132 transitions. [2020-10-28 12:45:39,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:45:39,979 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 228 [2020-10-28 12:45:39,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:45:39,990 INFO L225 Difference]: With dead ends: 3020 [2020-10-28 12:45:39,990 INFO L226 Difference]: Without dead ends: 2081 [2020-10-28 12:45:39,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-28 12:45:39,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2020-10-28 12:45:40,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 1877. [2020-10-28 12:45:40,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1877 states. [2020-10-28 12:45:40,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2358 transitions. [2020-10-28 12:45:40,051 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2358 transitions. Word has length 228 [2020-10-28 12:45:40,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:45:40,052 INFO L481 AbstractCegarLoop]: Abstraction has 1877 states and 2358 transitions. [2020-10-28 12:45:40,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:45:40,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2358 transitions. [2020-10-28 12:45:40,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-10-28 12:45:40,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:45:40,057 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, 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, 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] [2020-10-28 12:45:40,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:45:40,057 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:45:40,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:45:40,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1843099238, now seen corresponding path program 1 times [2020-10-28 12:45:40,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:45:40,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230314360] [2020-10-28 12:45:40,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:45:40,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:40,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:40,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:40,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:41,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:41,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:45,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:45,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-28 12:45:45,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:45:45,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 12:45:45,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:45,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:45,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:45:45,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:45:45,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 12:45:45,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:45:45,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:45:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:45,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:45,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:45,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:45:45,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:45,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:45:45,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:45,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:45,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:45:45,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:45:45,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:45:45,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:45,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:45:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:45,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:45,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:45,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:45:45,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:45,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-28 12:45:45,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:45,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:45,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:45:45,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:45:45,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 12:45:45,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:45,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-28 12:45:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:45,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:45,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:45,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:45:45,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:45,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 12:45:45,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:45,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:45,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:45:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-28 12:45:45,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:45:45,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:45:45,812 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 106 proven. 78 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 12:45:45,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230314360] [2020-10-28 12:45:45,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:45:45,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:45:45,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819247727] [2020-10-28 12:45:45,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:45:45,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:45:45,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:45:45,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:45:45,817 INFO L87 Difference]: Start difference. First operand 1877 states and 2358 transitions. Second operand 7 states. [2020-10-28 12:45:48,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:45:48,132 INFO L93 Difference]: Finished difference Result 4340 states and 5644 transitions. [2020-10-28 12:45:48,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:45:48,135 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 253 [2020-10-28 12:45:48,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:45:48,150 INFO L225 Difference]: With dead ends: 4340 [2020-10-28 12:45:48,150 INFO L226 Difference]: Without dead ends: 2651 [2020-10-28 12:45:48,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:45:48,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2020-10-28 12:45:48,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 2447. [2020-10-28 12:45:48,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2447 states. [2020-10-28 12:45:48,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2447 states to 2447 states and 3041 transitions. [2020-10-28 12:45:48,239 INFO L78 Accepts]: Start accepts. Automaton has 2447 states and 3041 transitions. Word has length 253 [2020-10-28 12:45:48,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:45:48,240 INFO L481 AbstractCegarLoop]: Abstraction has 2447 states and 3041 transitions. [2020-10-28 12:45:48,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:45:48,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2447 states and 3041 transitions. [2020-10-28 12:45:48,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2020-10-28 12:45:48,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:45:48,248 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, 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, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:45:48,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:45:48,248 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:45:48,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:45:48,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1952878849, now seen corresponding path program 1 times [2020-10-28 12:45:48,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:45:48,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752646966] [2020-10-28 12:45:48,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:45:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:48,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:48,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:48,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:48,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:51,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:53,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:53,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 377 [2020-10-28 12:45:53,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:45:53,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-28 12:45:53,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:53,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:53,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:45:53,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-28 12:45:53,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-28 12:45:53,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:53,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:45:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:53,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:53,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:53,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:45:53,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:53,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 12:45:53,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:53,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:53,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:45:53,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:45:53,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:45:53,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:53,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:45:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:53,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:53,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:53,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 12:45:53,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:53,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 12:45:53,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:53,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:53,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:45:53,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:45:53,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:45:53,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:53,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-28 12:45:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:53,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:53,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:53,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:45:53,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:53,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-28 12:45:53,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:53,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:53,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:45:53,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:45:53,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 12:45:53,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:53,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-28 12:45:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:53,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:53,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:45:53,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:45:53,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:45:53,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:45:53,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:45:53,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:45:53,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:45:53,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-28 12:45:53,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:45:53,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:45:54,397 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 244 proven. 82 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-28 12:45:54,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752646966] [2020-10-28 12:45:54,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:45:54,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:45:54,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967500906] [2020-10-28 12:45:54,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:45:54,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:45:54,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:45:54,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:45:54,403 INFO L87 Difference]: Start difference. First operand 2447 states and 3041 transitions. Second operand 7 states. [2020-10-28 12:45:56,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:45:56,853 INFO L93 Difference]: Finished difference Result 5090 states and 6357 transitions. [2020-10-28 12:45:56,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:45:56,856 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 361 [2020-10-28 12:45:56,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:45:56,869 INFO L225 Difference]: With dead ends: 5090 [2020-10-28 12:45:56,870 INFO L226 Difference]: Without dead ends: 2815 [2020-10-28 12:45:56,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:45:56,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2020-10-28 12:45:56,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2803. [2020-10-28 12:45:56,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2803 states. [2020-10-28 12:45:56,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 3094 transitions. [2020-10-28 12:45:56,950 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 3094 transitions. Word has length 361 [2020-10-28 12:45:56,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:45:56,950 INFO L481 AbstractCegarLoop]: Abstraction has 2803 states and 3094 transitions. [2020-10-28 12:45:56,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:45:56,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 3094 transitions. [2020-10-28 12:45:56,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2020-10-28 12:45:56,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:45:56,962 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, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:45:56,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:45:56,962 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:45:56,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:45:56,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1982919228, now seen corresponding path program 1 times [2020-10-28 12:45:56,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:45:56,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006659832] [2020-10-28 12:45:56,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:45:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:45:57,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:57,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:57,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:57,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:45:58,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:02,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:02,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 498 [2020-10-28 12:46:02,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:46:02,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-28 12:46:02,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:02,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:46:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-28 12:46:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 205 [2020-10-28 12:46:02,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:02,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:46:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:02,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:02,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:02,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:46:02,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:02,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:46:02,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:02,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:02,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:02,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:02,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:46:02,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:46:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:02,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:02,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:02,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:46:02,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:02,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:46:02,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:02,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:02,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:02,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:02,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:02,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:02,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:46:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:02,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:02,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:02,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:46:02,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:02,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 12:46:02,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:02,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:02,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:46:02,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:02,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:46:02,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:02,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:46:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:02,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:02,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:02,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:02,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:46:02,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:46:02,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-28 12:46:02,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:02,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:46:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 12:46:02,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:02,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:46:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:02,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:02,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:02,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:46:02,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:02,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-28 12:46:02,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:02,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:02,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:46:02,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:46:02,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:46:02,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:03,095 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 463 proven. 4 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2020-10-28 12:46:03,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006659832] [2020-10-28 12:46:03,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:46:03,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:46:03,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326364623] [2020-10-28 12:46:03,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:46:03,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:46:03,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:46:03,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:46:03,099 INFO L87 Difference]: Start difference. First operand 2803 states and 3094 transitions. Second operand 7 states. [2020-10-28 12:46:04,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:46:04,733 INFO L93 Difference]: Finished difference Result 5622 states and 6266 transitions. [2020-10-28 12:46:04,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:46:04,734 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 480 [2020-10-28 12:46:04,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:46:04,752 INFO L225 Difference]: With dead ends: 5622 [2020-10-28 12:46:04,752 INFO L226 Difference]: Without dead ends: 3191 [2020-10-28 12:46:04,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:46:04,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3191 states. [2020-10-28 12:46:04,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3191 to 2987. [2020-10-28 12:46:04,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2987 states. [2020-10-28 12:46:04,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2987 states to 2987 states and 3279 transitions. [2020-10-28 12:46:04,840 INFO L78 Accepts]: Start accepts. Automaton has 2987 states and 3279 transitions. Word has length 480 [2020-10-28 12:46:04,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:46:04,842 INFO L481 AbstractCegarLoop]: Abstraction has 2987 states and 3279 transitions. [2020-10-28 12:46:04,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:46:04,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2987 states and 3279 transitions. [2020-10-28 12:46:04,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2020-10-28 12:46:04,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:46:04,860 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:46:04,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:46:04,861 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:46:04,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:46:04,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1770966811, now seen corresponding path program 1 times [2020-10-28 12:46:04,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:46:04,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206794244] [2020-10-28 12:46:04,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:46:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:05,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:05,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:05,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:06,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:09,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:09,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:09,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 573 [2020-10-28 12:46:09,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:46:09,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-28 12:46:09,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:09,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:46:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-28 12:46:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-28 12:46:09,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:10,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:46:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:10,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:10,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:10,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:46:10,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:10,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:46:10,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:10,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:10,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:10,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:10,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:10,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:10,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:46:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:10,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:10,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:10,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:46:10,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:10,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:46:10,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:10,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:10,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:10,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:10,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:10,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:10,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:46:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:10,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:10,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:10,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:46:10,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:10,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 12:46:10,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:10,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:10,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:46:10,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:10,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:46:10,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:10,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:46:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:10,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:10,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:10,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:46:10,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:10,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-28 12:46:10,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:10,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:46:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:46:10,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 12:46:10,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:10,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:46:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:10,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:10,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:10,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:46:10,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:10,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 12:46:10,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:10,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:10,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:46:10,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:46:10,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:46:10,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:10,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2020-10-28 12:46:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:10,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:10,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:10,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:46:10,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:10,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:46:10,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:10,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:10,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:10,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-28 12:46:10,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:10,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:11,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 637 proven. 154 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2020-10-28 12:46:11,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206794244] [2020-10-28 12:46:11,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:46:11,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:46:11,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265032329] [2020-10-28 12:46:11,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:46:11,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:46:11,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:46:11,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:46:11,066 INFO L87 Difference]: Start difference. First operand 2987 states and 3279 transitions. Second operand 7 states. [2020-10-28 12:46:13,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:46:13,602 INFO L93 Difference]: Finished difference Result 5996 states and 6624 transitions. [2020-10-28 12:46:13,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:46:13,603 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 553 [2020-10-28 12:46:13,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:46:13,620 INFO L225 Difference]: With dead ends: 5996 [2020-10-28 12:46:13,620 INFO L226 Difference]: Without dead ends: 3381 [2020-10-28 12:46:13,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:46:13,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3381 states. [2020-10-28 12:46:13,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3381 to 3359. [2020-10-28 12:46:13,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3359 states. [2020-10-28 12:46:13,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3359 states to 3359 states and 3663 transitions. [2020-10-28 12:46:13,710 INFO L78 Accepts]: Start accepts. Automaton has 3359 states and 3663 transitions. Word has length 553 [2020-10-28 12:46:13,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:46:13,711 INFO L481 AbstractCegarLoop]: Abstraction has 3359 states and 3663 transitions. [2020-10-28 12:46:13,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:46:13,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3359 states and 3663 transitions. [2020-10-28 12:46:13,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2020-10-28 12:46:13,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:46:13,721 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-28 12:46:13,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:46:13,721 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:46:13,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:46:13,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1696965712, now seen corresponding path program 1 times [2020-10-28 12:46:13,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:46:13,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055504047] [2020-10-28 12:46:13,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:46:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:13,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:14,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:16,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:16,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:16,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:18,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:18,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 734 [2020-10-28 12:46:18,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:46:18,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 12:46:18,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:18,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:46:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 586 [2020-10-28 12:46:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:46:18,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:19,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:46:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:19,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:19,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:19,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:46:19,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:19,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:46:19,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:19,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:19,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:19,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:19,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:19,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:19,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:46:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:19,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:19,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:19,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:46:19,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:19,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:46:19,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:19,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:19,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:19,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:19,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:19,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:19,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:46:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:19,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:19,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:19,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:46:19,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:19,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:46:19,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:19,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:19,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:19,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:19,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:46:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:19,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:19,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:19,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:46:19,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:19,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:46:19,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:19,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:19,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:19,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:19,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:19,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:19,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:46:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:19,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:19,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:19,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:46:19,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:19,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:46:19,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:19,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:19,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:19,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:46:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:19,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:19,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:19,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:46:19,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:19,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:46:19,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:19,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:19,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:46:19,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:19,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 12:46:19,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:19,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-10-28 12:46:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:19,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:19,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:19,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:46:19,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:19,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-28 12:46:19,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:19,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:19,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:46:19,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:46:19,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:46:19,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:20,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1679 backedges. 728 proven. 2 refuted. 0 times theorem prover too weak. 949 trivial. 0 not checked. [2020-10-28 12:46:20,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055504047] [2020-10-28 12:46:20,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:46:20,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:46:20,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195803689] [2020-10-28 12:46:20,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:46:20,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:46:20,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:46:20,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:46:20,011 INFO L87 Difference]: Start difference. First operand 3359 states and 3663 transitions. Second operand 8 states. [2020-10-28 12:46:22,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:46:22,801 INFO L93 Difference]: Finished difference Result 7114 states and 7827 transitions. [2020-10-28 12:46:22,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 12:46:22,802 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 712 [2020-10-28 12:46:22,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:46:22,817 INFO L225 Difference]: With dead ends: 7114 [2020-10-28 12:46:22,818 INFO L226 Difference]: Without dead ends: 3571 [2020-10-28 12:46:22,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-28 12:46:22,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2020-10-28 12:46:22,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3359. [2020-10-28 12:46:22,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3359 states. [2020-10-28 12:46:22,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3359 states to 3359 states and 3587 transitions. [2020-10-28 12:46:22,911 INFO L78 Accepts]: Start accepts. Automaton has 3359 states and 3587 transitions. Word has length 712 [2020-10-28 12:46:22,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:46:22,913 INFO L481 AbstractCegarLoop]: Abstraction has 3359 states and 3587 transitions. [2020-10-28 12:46:22,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:46:22,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3359 states and 3587 transitions. [2020-10-28 12:46:22,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2020-10-28 12:46:22,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:46:22,924 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:46:22,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:46:22,925 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:46:22,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:46:22,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1495088572, now seen corresponding path program 1 times [2020-10-28 12:46:22,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:46:22,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85138684] [2020-10-28 12:46:22,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:46:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:23,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:23,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:23,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:26,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:27,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:28,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:28,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 837 [2020-10-28 12:46:28,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:46:28,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 12:46:28,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:28,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:28,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:46:28,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:46:28,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:46:28,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:28,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:46:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:28,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:28,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:28,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:46:28,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:28,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:46:28,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:28,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:28,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:28,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:28,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:28,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:28,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:46:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:28,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:28,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:28,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:46:28,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:28,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:46:28,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:28,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:28,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:28,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:28,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:28,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:28,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:46:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:28,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:28,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:28,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:46:28,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:28,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:46:28,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:28,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:28,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:28,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:46:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:28,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:28,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:28,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:46:28,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:28,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:46:28,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:28,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:28,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:28,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:28,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:28,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:28,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:46:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:28,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:28,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:28,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:46:28,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:28,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-28 12:46:28,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:28,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:28,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:46:28,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:28,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:46:28,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:28,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:46:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:28,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:28,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:28,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:46:28,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:28,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-28 12:46:28,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:28,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:28,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:46:28,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:46:28,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:46:28,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:28,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-28 12:46:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:28,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:28,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:28,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 12:46:28,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:28,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:46:28,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:28,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:28,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:28,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-28 12:46:28,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:28,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:29,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 832 proven. 79 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2020-10-28 12:46:29,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85138684] [2020-10-28 12:46:29,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:46:29,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:46:29,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673779051] [2020-10-28 12:46:29,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:46:29,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:46:29,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:46:29,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:46:29,357 INFO L87 Difference]: Start difference. First operand 3359 states and 3587 transitions. Second operand 7 states. [2020-10-28 12:46:31,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:46:31,402 INFO L93 Difference]: Finished difference Result 7470 states and 8080 transitions. [2020-10-28 12:46:31,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:46:31,403 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 815 [2020-10-28 12:46:31,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:46:31,423 INFO L225 Difference]: With dead ends: 7470 [2020-10-28 12:46:31,423 INFO L226 Difference]: Without dead ends: 4483 [2020-10-28 12:46:31,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:46:31,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4483 states. [2020-10-28 12:46:31,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4483 to 3923. [2020-10-28 12:46:31,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3923 states. [2020-10-28 12:46:31,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3923 states to 3923 states and 4263 transitions. [2020-10-28 12:46:31,534 INFO L78 Accepts]: Start accepts. Automaton has 3923 states and 4263 transitions. Word has length 815 [2020-10-28 12:46:31,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:46:31,535 INFO L481 AbstractCegarLoop]: Abstraction has 3923 states and 4263 transitions. [2020-10-28 12:46:31,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:46:31,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3923 states and 4263 transitions. [2020-10-28 12:46:31,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 892 [2020-10-28 12:46:31,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:46:31,550 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:46:31,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:46:31,550 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:46:31,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:46:31,551 INFO L82 PathProgramCache]: Analyzing trace with hash -693216233, now seen corresponding path program 1 times [2020-10-28 12:46:31,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:46:31,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [261776035] [2020-10-28 12:46:31,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:46:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:31,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:32,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:32,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:34,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:36,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:36,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 915 [2020-10-28 12:46:36,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:46:36,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 12:46:36,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:36,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:36,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:46:36,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 770 [2020-10-28 12:46:36,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 12:46:36,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:36,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:46:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:36,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:36,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:36,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:46:36,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:36,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:46:36,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:36,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:36,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:36,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:36,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:36,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:36,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:46:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:36,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:36,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:36,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:46:36,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:36,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:46:36,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:36,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:36,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:36,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:36,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:36,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:36,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:46:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:36,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:36,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:36,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:46:36,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:36,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:46:36,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:36,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:36,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:36,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:36,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:36,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:37,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:46:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:37,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:37,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:37,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:46:37,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:37,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:46:37,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:37,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:37,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:37,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:37,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:37,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:37,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:46:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:37,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:37,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:37,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:46:37,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:37,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:46:37,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:37,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:37,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:37,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:37,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:37,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:37,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:46:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:37,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:37,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:37,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:46:37,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:37,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:46:37,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:37,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:37,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:37,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:37,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:37,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:37,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-28 12:46:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:37,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:37,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:37,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:46:37,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:37,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 12:46:37,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:37,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:46:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-28 12:46:37,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:37,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-28 12:46:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:37,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:37,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:37,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 12:46:37,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:37,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 12:46:37,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:37,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:37,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:46:37,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:46:37,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 12:46:37,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:38,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2386 backedges. 854 proven. 2 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2020-10-28 12:46:38,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [261776035] [2020-10-28 12:46:38,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:46:38,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:46:38,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402593082] [2020-10-28 12:46:38,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:46:38,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:46:38,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:46:38,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:46:38,015 INFO L87 Difference]: Start difference. First operand 3923 states and 4263 transitions. Second operand 7 states. [2020-10-28 12:46:39,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:46:39,565 INFO L93 Difference]: Finished difference Result 8768 states and 9697 transitions. [2020-10-28 12:46:39,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:46:39,566 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 891 [2020-10-28 12:46:39,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:46:39,586 INFO L225 Difference]: With dead ends: 8768 [2020-10-28 12:46:39,586 INFO L226 Difference]: Without dead ends: 5217 [2020-10-28 12:46:39,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:46:39,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5217 states. [2020-10-28 12:46:39,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5217 to 5025. [2020-10-28 12:46:39,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5025 states. [2020-10-28 12:46:39,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5025 states to 5025 states and 5552 transitions. [2020-10-28 12:46:39,724 INFO L78 Accepts]: Start accepts. Automaton has 5025 states and 5552 transitions. Word has length 891 [2020-10-28 12:46:39,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:46:39,725 INFO L481 AbstractCegarLoop]: Abstraction has 5025 states and 5552 transitions. [2020-10-28 12:46:39,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:46:39,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5025 states and 5552 transitions. [2020-10-28 12:46:39,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 913 [2020-10-28 12:46:39,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:46:39,743 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:46:39,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 12:46:39,744 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:46:39,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:46:39,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1067411365, now seen corresponding path program 1 times [2020-10-28 12:46:39,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:46:39,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118705398] [2020-10-28 12:46:39,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:46:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:40,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:40,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:40,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:42,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:44,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:44,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 936 [2020-10-28 12:46:44,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:46:44,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 12:46:44,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:44,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:44,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:46:44,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-28 12:46:44,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:46:44,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:45,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:46:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:45,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:45,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:45,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:46:45,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:45,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:46:45,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:45,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:45,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:45,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:45,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:45,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:45,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:46:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:45,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:45,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:45,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:46:45,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:45,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:46:45,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:45,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:45,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:45,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:45,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:45,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:45,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:46:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:45,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:45,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:45,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:46:45,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:45,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:46:45,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:45,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:45,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:45,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:45,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:45,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:45,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:46:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:45,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:45,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:45,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:46:45,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:45,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 12:46:45,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:45,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:45,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:46:45,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:45,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 12:46:45,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:45,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:46:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:45,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:45,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:45,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:46:45,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:45,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-28 12:46:45,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:45,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:45,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:46:45,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:46:45,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:46:45,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:45,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-28 12:46:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:45,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:45,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:45,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:46:45,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:45,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:46:45,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:45,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:45,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:45,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:46:45,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:45,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:45,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-28 12:46:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:45,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:45,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:45,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:46:45,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:45,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-28 12:46:45,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:45,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:45,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:45,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:46:45,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:45,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:45,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-28 12:46:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:45,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:45,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:45,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:46:45,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:45,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:46:45,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:45,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:45,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:45,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-28 12:46:45,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:45,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:46,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2419 backedges. 744 proven. 329 refuted. 0 times theorem prover too weak. 1346 trivial. 0 not checked. [2020-10-28 12:46:46,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118705398] [2020-10-28 12:46:46,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:46:46,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:46:46,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465879474] [2020-10-28 12:46:46,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:46:46,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:46:46,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:46:46,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:46:46,712 INFO L87 Difference]: Start difference. First operand 5025 states and 5552 transitions. Second operand 7 states. [2020-10-28 12:46:49,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:46:49,137 INFO L93 Difference]: Finished difference Result 10780 states and 11999 transitions. [2020-10-28 12:46:49,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:46:49,138 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 912 [2020-10-28 12:46:49,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:46:49,156 INFO L225 Difference]: With dead ends: 10780 [2020-10-28 12:46:49,157 INFO L226 Difference]: Without dead ends: 5939 [2020-10-28 12:46:49,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:46:49,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5939 states. [2020-10-28 12:46:49,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5939 to 5755. [2020-10-28 12:46:49,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5755 states. [2020-10-28 12:46:49,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5755 states to 5755 states and 6334 transitions. [2020-10-28 12:46:49,302 INFO L78 Accepts]: Start accepts. Automaton has 5755 states and 6334 transitions. Word has length 912 [2020-10-28 12:46:49,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:46:49,303 INFO L481 AbstractCegarLoop]: Abstraction has 5755 states and 6334 transitions. [2020-10-28 12:46:49,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:46:49,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5755 states and 6334 transitions. [2020-10-28 12:46:49,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2020-10-28 12:46:49,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:46:49,319 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2020-10-28 12:46:49,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 12:46:49,320 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:46:49,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:46:49,320 INFO L82 PathProgramCache]: Analyzing trace with hash -794547789, now seen corresponding path program 1 times [2020-10-28 12:46:49,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:46:49,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716707896] [2020-10-28 12:46:49,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:46:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:49,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:49,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:50,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:51,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:52,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:54,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:54,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 975 [2020-10-28 12:46:54,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:46:54,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5083 [2020-10-28 12:46:54,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:54,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:46:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 646 [2020-10-28 12:46:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:46:54,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:54,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:46:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:54,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:54,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:54,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:46:54,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:54,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:46:54,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:54,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:54,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:54,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:54,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:54,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:54,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:46:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:54,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:54,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:54,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:46:54,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:54,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:46:54,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:54,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:54,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:54,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:54,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:54,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:54,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:46:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:54,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:54,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:54,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:46:54,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:54,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:46:54,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:54,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:54,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:54,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:54,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:54,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:54,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:46:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:54,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:54,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:54,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:46:54,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:54,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:46:54,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:54,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:54,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:54,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:54,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:54,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:54,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:46:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:54,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:54,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:54,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:46:54,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:54,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 12:46:54,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:54,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:54,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:54,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:54,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:54,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:55,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:46:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:55,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:55,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:55,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:46:55,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:55,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 12:46:55,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:55,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:55,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:46:55,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:46:55,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:46:55,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:55,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 636 [2020-10-28 12:46:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:55,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:55,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:55,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:46:55,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:55,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-28 12:46:55,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:55,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:55,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:46:55,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:46:55,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:46:55,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:55,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 815 [2020-10-28 12:46:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:55,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:55,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:46:55,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:46:55,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:46:55,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:46:55,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:46:55,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:46:55,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:46:55,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-28 12:46:55,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:46:55,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:46:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2630 backedges. 1024 proven. 82 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2020-10-28 12:46:56,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716707896] [2020-10-28 12:46:56,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:46:56,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:46:56,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625200159] [2020-10-28 12:46:56,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:46:56,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:46:56,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:46:56,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:46:56,017 INFO L87 Difference]: Start difference. First operand 5755 states and 6334 transitions. Second operand 7 states. [2020-10-28 12:46:57,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:46:57,881 INFO L93 Difference]: Finished difference Result 11524 states and 12677 transitions. [2020-10-28 12:46:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:46:57,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 951 [2020-10-28 12:46:57,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:46:57,902 INFO L225 Difference]: With dead ends: 11524 [2020-10-28 12:46:57,902 INFO L226 Difference]: Without dead ends: 5765 [2020-10-28 12:46:57,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:46:57,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5765 states. [2020-10-28 12:46:58,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5765 to 5215. [2020-10-28 12:46:58,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5215 states. [2020-10-28 12:46:58,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 5609 transitions. [2020-10-28 12:46:58,034 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 5609 transitions. Word has length 951 [2020-10-28 12:46:58,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:46:58,035 INFO L481 AbstractCegarLoop]: Abstraction has 5215 states and 5609 transitions. [2020-10-28 12:46:58,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:46:58,035 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 5609 transitions. [2020-10-28 12:46:58,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2020-10-28 12:46:58,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:46:58,051 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:46:58,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 12:46:58,053 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:46:58,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:46:58,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1669059800, now seen corresponding path program 1 times [2020-10-28 12:46:58,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:46:58,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923208324] [2020-10-28 12:46:58,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:46:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:46:58,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:46:58,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:02,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:03,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:03,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1030 [2020-10-28 12:47:03,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:47:03,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5115 [2020-10-28 12:47:03,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:03,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:03,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:47:03,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 967 [2020-10-28 12:47:03,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 12:47:03,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:03,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:47:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:03,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:03,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:03,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:47:03,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:03,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:47:03,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:03,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:03,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:03,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:03,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:03,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:03,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:47:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:03,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:03,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:03,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:47:03,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:03,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:47:03,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:03,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:03,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:03,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:03,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:03,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:03,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:47:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:03,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:03,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:03,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:47:03,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:03,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:47:03,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:03,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:03,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:03,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:03,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:03,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:03,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:47:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:03,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:03,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:03,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:47:03,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:03,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:47:03,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:03,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:03,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:03,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:03,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:03,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:03,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:47:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:03,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:03,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:03,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:47:03,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:03,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:47:03,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:03,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:03,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:03,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:03,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:03,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:03,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:47:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:03,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:03,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:03,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:47:03,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:03,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:47:03,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:03,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:03,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:03,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:03,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:03,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:03,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:47:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:03,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:03,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:03,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:47:03,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:03,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:47:03,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:03,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:03,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:03,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:03,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:03,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:03,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:47:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:03,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:03,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:03,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:47:03,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:03,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-28 12:47:03,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:03,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:03,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:04,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:47:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:04,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:04,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:04,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-28 12:47:04,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:04,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-28 12:47:04,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:04,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:04,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:47:04,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:04,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 12:47:04,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:04,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3089 backedges. 437 proven. 8 refuted. 0 times theorem prover too weak. 2644 trivial. 0 not checked. [2020-10-28 12:47:04,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923208324] [2020-10-28 12:47:04,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:47:04,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:47:04,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726233762] [2020-10-28 12:47:04,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:47:04,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:47:04,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:47:04,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:47:04,824 INFO L87 Difference]: Start difference. First operand 5215 states and 5609 transitions. Second operand 5 states. [2020-10-28 12:47:06,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:47:06,276 INFO L93 Difference]: Finished difference Result 11334 states and 12174 transitions. [2020-10-28 12:47:06,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:47:06,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1004 [2020-10-28 12:47:06,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:47:06,297 INFO L225 Difference]: With dead ends: 11334 [2020-10-28 12:47:06,297 INFO L226 Difference]: Without dead ends: 5015 [2020-10-28 12:47:06,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:47:06,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5015 states. [2020-10-28 12:47:06,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5015 to 5013. [2020-10-28 12:47:06,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5013 states. [2020-10-28 12:47:06,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5013 states to 5013 states and 5342 transitions. [2020-10-28 12:47:06,416 INFO L78 Accepts]: Start accepts. Automaton has 5013 states and 5342 transitions. Word has length 1004 [2020-10-28 12:47:06,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:47:06,417 INFO L481 AbstractCegarLoop]: Abstraction has 5013 states and 5342 transitions. [2020-10-28 12:47:06,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:47:06,417 INFO L276 IsEmpty]: Start isEmpty. Operand 5013 states and 5342 transitions. [2020-10-28 12:47:06,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1010 [2020-10-28 12:47:06,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:47:06,436 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:47:06,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 12:47:06,436 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:47:06,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:47:06,437 INFO L82 PathProgramCache]: Analyzing trace with hash 933727500, now seen corresponding path program 1 times [2020-10-28 12:47:06,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:47:06,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844029296] [2020-10-28 12:47:06,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:47:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:06,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:07,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:09,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:11,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:11,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1035 [2020-10-28 12:47:11,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:47:11,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-28 12:47:11,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:11,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:11,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:47:11,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 972 [2020-10-28 12:47:11,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 12:47:11,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:11,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:47:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:11,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:11,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:11,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:47:11,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:11,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:47:11,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:11,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:11,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:11,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:11,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:47:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:11,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:11,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:11,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:47:11,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:11,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:47:11,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:11,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:11,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:11,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:11,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:11,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:11,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:47:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:11,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:11,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:11,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:47:11,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:11,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:47:11,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:11,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:11,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:11,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:11,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:11,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 12:47:12,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:47:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:12,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:12,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:12,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:47:12,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:12,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:47:12,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:12,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:12,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:12,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:47:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:12,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:12,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:12,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:47:12,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:12,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 12:47:12,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:12,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:12,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:12,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:12,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:12,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:12,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:47:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:12,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:12,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:12,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:47:12,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:12,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 12:47:12,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:12,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:12,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:12,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:12,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:12,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:12,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:47:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:12,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:12,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:12,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:47:12,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:12,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:47:12,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:12,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:12,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:12,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:12,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:12,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:12,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:47:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:12,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:12,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:12,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:47:12,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:12,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 12:47:12,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:12,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:12,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:12,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:12,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:12,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:12,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:47:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:12,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:12,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:12,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-28 12:47:12,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:12,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:47:12,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:12,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:12,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:47:12,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:12,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-28 12:47:12,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:13,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3114 backedges. 437 proven. 8 refuted. 0 times theorem prover too weak. 2669 trivial. 0 not checked. [2020-10-28 12:47:13,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844029296] [2020-10-28 12:47:13,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:47:13,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:47:13,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35785156] [2020-10-28 12:47:13,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:47:13,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:47:13,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:47:13,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:47:13,022 INFO L87 Difference]: Start difference. First operand 5013 states and 5342 transitions. Second operand 5 states. [2020-10-28 12:47:14,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:47:14,614 INFO L93 Difference]: Finished difference Result 10932 states and 11731 transitions. [2020-10-28 12:47:14,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:47:14,615 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1009 [2020-10-28 12:47:14,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:47:14,633 INFO L225 Difference]: With dead ends: 10932 [2020-10-28 12:47:14,633 INFO L226 Difference]: Without dead ends: 6105 [2020-10-28 12:47:14,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:47:14,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6105 states. [2020-10-28 12:47:14,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6105 to 6103. [2020-10-28 12:47:14,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6103 states. [2020-10-28 12:47:14,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6103 states to 6103 states and 6470 transitions. [2020-10-28 12:47:14,854 INFO L78 Accepts]: Start accepts. Automaton has 6103 states and 6470 transitions. Word has length 1009 [2020-10-28 12:47:14,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:47:14,855 INFO L481 AbstractCegarLoop]: Abstraction has 6103 states and 6470 transitions. [2020-10-28 12:47:14,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:47:14,856 INFO L276 IsEmpty]: Start isEmpty. Operand 6103 states and 6470 transitions. [2020-10-28 12:47:14,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1095 [2020-10-28 12:47:14,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:47:14,882 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:47:14,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 12:47:14,883 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:47:14,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:47:14,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1917527213, now seen corresponding path program 1 times [2020-10-28 12:47:14,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:47:14,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339883314] [2020-10-28 12:47:14,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:47:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:15,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:15,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:16,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:20,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:20,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1122 [2020-10-28 12:47:20,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:47:20,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5104 [2020-10-28 12:47:20,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:20,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:20,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 12:47:20,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-28 12:47:20,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 370 [2020-10-28 12:47:20,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 12:47:20,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:47:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:20,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:20,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:20,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:47:20,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:20,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:47:20,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:20,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:20,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:20,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:47:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:20,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:20,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:20,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:47:20,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:20,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:47:20,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:20,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:20,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:20,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:20,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:20,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:20,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:47:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:20,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:20,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:20,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:47:20,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:20,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:47:20,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:20,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:20,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:20,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:20,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:20,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:20,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:47:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:20,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:20,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:20,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:47:20,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:20,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:47:20,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:20,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:20,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:20,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:20,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:20,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:20,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:47:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:20,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:20,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:20,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:47:20,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:20,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:47:20,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:20,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:20,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:20,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:47:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:20,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:20,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:20,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:47:20,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:20,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 12:47:20,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:20,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:20,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:20,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:20,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:47:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:20,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:20,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:20,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:47:20,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:20,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:47:20,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:20,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:20,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:47:20,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:20,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 12:47:20,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:20,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:47:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:21,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:21,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:21,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:47:21,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:21,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-28 12:47:21,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:21,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:21,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 12:47:21,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:47:21,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:47:21,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:21,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:47:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:21,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:21,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:21,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:21,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:47:21,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:47:21,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 12:47:21,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:21,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:21,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:47:21,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:47:21,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 12:47:21,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:21,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2020-10-28 12:47:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:21,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:21,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:21,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-28 12:47:21,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:21,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-28 12:47:21,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:21,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:21,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:47:21,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:47:21,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-28 12:47:21,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:22,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3826 backedges. 2194 proven. 10 refuted. 0 times theorem prover too weak. 1622 trivial. 0 not checked. [2020-10-28 12:47:22,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339883314] [2020-10-28 12:47:22,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:47:22,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 12:47:22,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618985726] [2020-10-28 12:47:22,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 12:47:22,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:47:22,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 12:47:22,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-28 12:47:22,565 INFO L87 Difference]: Start difference. First operand 6103 states and 6470 transitions. Second operand 9 states. [2020-10-28 12:47:25,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:47:25,430 INFO L93 Difference]: Finished difference Result 12754 states and 13554 transitions. [2020-10-28 12:47:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 12:47:25,433 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1094 [2020-10-28 12:47:25,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:47:25,456 INFO L225 Difference]: With dead ends: 12754 [2020-10-28 12:47:25,457 INFO L226 Difference]: Without dead ends: 7023 [2020-10-28 12:47:25,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2020-10-28 12:47:25,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7023 states. [2020-10-28 12:47:25,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7023 to 6473. [2020-10-28 12:47:25,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6473 states. [2020-10-28 12:47:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6473 states to 6473 states and 6859 transitions. [2020-10-28 12:47:25,599 INFO L78 Accepts]: Start accepts. Automaton has 6473 states and 6859 transitions. Word has length 1094 [2020-10-28 12:47:25,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:47:25,600 INFO L481 AbstractCegarLoop]: Abstraction has 6473 states and 6859 transitions. [2020-10-28 12:47:25,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 12:47:25,600 INFO L276 IsEmpty]: Start isEmpty. Operand 6473 states and 6859 transitions. [2020-10-28 12:47:25,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1128 [2020-10-28 12:47:25,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:47:25,622 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:47:25,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 12:47:25,622 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:47:25,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:47:25,623 INFO L82 PathProgramCache]: Analyzing trace with hash 685547371, now seen corresponding path program 1 times [2020-10-28 12:47:25,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:47:25,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465600619] [2020-10-28 12:47:25,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:47:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:25,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:26,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:29,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:29,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:30,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:30,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1155 [2020-10-28 12:47:30,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:47:30,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 12:47:30,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:30,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:30,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:47:30,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-28 12:47:30,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 12:47:30,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:30,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:47:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:30,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:30,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:30,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:47:30,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:30,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:47:30,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:30,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:30,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:30,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:30,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:30,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:30,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:47:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:31,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:31,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:31,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:47:31,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:31,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:47:31,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:31,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:31,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:31,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:47:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:31,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:31,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:31,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:47:31,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:31,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:47:31,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:31,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:31,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:31,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:31,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:31,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:31,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:47:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:31,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:31,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:31,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:47:31,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:31,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:47:31,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:31,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:31,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:31,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:31,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:31,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:31,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:47:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:31,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:31,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:31,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:47:31,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:31,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:47:31,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:31,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:31,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:31,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:31,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:31,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:31,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:47:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:31,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:31,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:31,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:47:31,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:31,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 12:47:31,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:31,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:31,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:31,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:31,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:31,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:31,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:47:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:31,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:31,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:31,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:47:31,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:31,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:47:31,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:31,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:31,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:31,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:31,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:31,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:31,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:47:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:31,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:31,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:31,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:47:31,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:31,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-28 12:47:31,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:31,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:31,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:47:31,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:31,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-28 12:47:31,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:31,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:47:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:31,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:31,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:31,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 12:47:31,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:31,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-28 12:47:31,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:31,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:47:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:47:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-28 12:47:31,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:31,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-28 12:47:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:31,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:31,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:31,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-28 12:47:31,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:31,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:47:31,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:31,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:31,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:31,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-28 12:47:31,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:31,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:32,529 INFO L134 CoverageAnalysis]: Checked inductivity of 4014 backedges. 1226 proven. 104 refuted. 0 times theorem prover too weak. 2684 trivial. 0 not checked. [2020-10-28 12:47:32,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465600619] [2020-10-28 12:47:32,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:47:32,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:47:32,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939097219] [2020-10-28 12:47:32,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:47:32,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:47:32,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:47:32,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:47:32,532 INFO L87 Difference]: Start difference. First operand 6473 states and 6859 transitions. Second operand 7 states. [2020-10-28 12:47:34,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:47:34,476 INFO L93 Difference]: Finished difference Result 12578 states and 13346 transitions. [2020-10-28 12:47:34,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:47:34,480 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1127 [2020-10-28 12:47:34,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:47:34,510 INFO L225 Difference]: With dead ends: 12578 [2020-10-28 12:47:34,510 INFO L226 Difference]: Without dead ends: 6477 [2020-10-28 12:47:34,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-28 12:47:34,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6477 states. [2020-10-28 12:47:34,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6477 to 6475. [2020-10-28 12:47:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6475 states. [2020-10-28 12:47:34,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6475 states to 6475 states and 6732 transitions. [2020-10-28 12:47:34,655 INFO L78 Accepts]: Start accepts. Automaton has 6475 states and 6732 transitions. Word has length 1127 [2020-10-28 12:47:34,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:47:34,655 INFO L481 AbstractCegarLoop]: Abstraction has 6475 states and 6732 transitions. [2020-10-28 12:47:34,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:47:34,656 INFO L276 IsEmpty]: Start isEmpty. Operand 6475 states and 6732 transitions. [2020-10-28 12:47:34,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1513 [2020-10-28 12:47:34,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:47:34,690 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-28 12:47:34,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 12:47:34,690 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:47:34,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:47:34,691 INFO L82 PathProgramCache]: Analyzing trace with hash -441927900, now seen corresponding path program 1 times [2020-10-28 12:47:34,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:47:34,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315896207] [2020-10-28 12:47:34,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:47:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:35,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:35,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:36,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:40,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:40,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1546 [2020-10-28 12:47:40,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:47:40,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-28 12:47:40,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:40,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:40,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:47:40,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-28 12:47:40,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-28 12:47:40,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:40,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:47:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:40,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:40,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:40,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:47:40,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:40,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:47:40,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:40,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:40,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:40,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:40,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:40,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:40,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:47:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:40,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:40,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:40,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:47:40,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:40,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-28 12:47:40,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:40,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:40,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:40,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:40,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:40,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:47:40,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:47:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:40,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:40,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:40,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:47:40,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:40,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:47:40,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:40,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:40,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:40,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:40,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:40,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:40,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:47:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:40,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:40,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:40,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:47:40,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:40,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:47:40,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:40,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:40,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:40,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:40,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:40,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:40,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:47:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:40,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:40,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:40,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:47:40,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:40,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:47:40,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:40,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:40,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:40,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:40,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:40,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:40,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:47:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:40,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:40,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:40,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:47:40,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:40,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-28 12:47:40,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:40,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:40,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:40,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:40,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:40,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:40,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:47:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:40,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:40,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:40,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:47:40,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:40,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:47:40,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:40,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:40,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:40,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:40,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:47:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:40,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:40,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:40,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:47:40,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:40,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 12:47:40,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:40,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:40,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:40,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:40,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:40,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:40,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:47:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:40,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:40,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:40,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:47:40,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:40,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:47:40,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:40,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:40,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:40,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:40,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:40,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:41,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:47:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:41,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:41,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:41,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:47:41,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:41,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 12:47:41,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:41,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:41,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:47:41,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:41,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 12:47:41,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:41,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:47:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:41,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:41,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:41,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 12:47:41,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:41,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-28 12:47:41,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:41,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:47:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:47:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:47:41,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:41,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1242 [2020-10-28 12:47:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:41,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:41,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:41,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 12:47:41,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:41,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:47:41,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:41,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:41,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-28 12:47:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:41,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:41,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1354 [2020-10-28 12:47:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:41,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:41,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:41,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-28 12:47:41,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:41,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:47:41,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:41,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:41,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:41,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-28 12:47:41,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:41,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:42,952 INFO L134 CoverageAnalysis]: Checked inductivity of 7436 backedges. 1713 proven. 213 refuted. 0 times theorem prover too weak. 5510 trivial. 0 not checked. [2020-10-28 12:47:42,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315896207] [2020-10-28 12:47:42,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:47:42,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:47:42,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222828645] [2020-10-28 12:47:42,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:47:42,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:47:42,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:47:42,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:47:42,954 INFO L87 Difference]: Start difference. First operand 6475 states and 6732 transitions. Second operand 7 states. [2020-10-28 12:47:44,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:47:44,732 INFO L93 Difference]: Finished difference Result 13134 states and 13686 transitions. [2020-10-28 12:47:44,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:47:44,736 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1512 [2020-10-28 12:47:44,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:47:44,757 INFO L225 Difference]: With dead ends: 13134 [2020-10-28 12:47:44,758 INFO L226 Difference]: Without dead ends: 7031 [2020-10-28 12:47:44,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:47:44,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7031 states. [2020-10-28 12:47:44,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7031 to 7027. [2020-10-28 12:47:44,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7027 states. [2020-10-28 12:47:44,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 7303 transitions. [2020-10-28 12:47:44,900 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 7303 transitions. Word has length 1512 [2020-10-28 12:47:44,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:47:44,902 INFO L481 AbstractCegarLoop]: Abstraction has 7027 states and 7303 transitions. [2020-10-28 12:47:44,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:47:44,902 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 7303 transitions. [2020-10-28 12:47:44,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1568 [2020-10-28 12:47:44,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:47:44,939 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 6, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 12:47:44,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 12:47:44,939 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:47:44,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:47:44,940 INFO L82 PathProgramCache]: Analyzing trace with hash -759461996, now seen corresponding path program 1 times [2020-10-28 12:47:44,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:47:44,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50150942] [2020-10-28 12:47:44,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:47:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:45,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:45,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:46,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:50,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:50,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1601 [2020-10-28 12:47:50,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:47:50,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-28 12:47:50,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:50,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:50,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:47:50,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-28 12:47:50,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 299 [2020-10-28 12:47:50,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:50,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:47:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:50,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:50,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:50,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:47:50,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:50,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:47:50,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:50,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:50,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:50,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:50,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:50,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:50,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:47:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:50,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:50,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:50,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:47:50,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:50,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:47:50,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:50,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:50,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:50,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:50,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:50,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:50,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:47:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:50,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:50,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:50,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:47:50,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:50,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:47:50,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:50,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:50,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:50,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:50,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:50,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:50,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:47:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:50,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:50,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:50,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:47:50,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:50,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:47:50,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:50,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:50,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:50,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:50,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:50,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:47:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:50,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:50,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:50,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:47:50,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:50,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 12:47:50,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:50,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:50,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:50,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:47:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:50,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:50,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:50,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:47:50,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:50,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:47:50,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:50,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:50,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:50,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:50,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:50,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:50,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:47:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:50,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:50,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:50,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:47:50,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:50,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 12:47:50,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:50,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:50,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:50,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:50,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:50,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:50,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:47:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:50,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:50,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:50,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:47:50,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:50,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:47:50,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:50,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:50,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:50,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:50,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:50,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:50,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:47:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:50,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:50,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:50,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:47:50,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:50,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:47:50,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:50,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:50,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:50,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:50,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:50,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:50,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:47:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:51,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:51,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:51,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:47:51,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:51,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 12:47:51,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:51,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:51,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:47:51,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:51,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 12:47:51,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:51,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:47:51,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:51,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:51,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:51,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:47:51,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:51,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-28 12:47:51,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:51,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:51,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:47:51,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:47:51,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-28 12:47:51,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:51,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:47:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:51,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:51,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:51,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 12:47:51,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:51,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-28 12:47:51,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:51,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:51,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:47:51,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:47:51,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-28 12:47:51,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:51,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1409 [2020-10-28 12:47:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:51,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:51,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:51,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-28 12:47:51,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:51,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:47:51,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:51,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:51,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:47:51,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-28 12:47:51,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:47:51,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:53,818 INFO L134 CoverageAnalysis]: Checked inductivity of 7551 backedges. 2721 proven. 313 refuted. 0 times theorem prover too weak. 4517 trivial. 0 not checked. [2020-10-28 12:47:53,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50150942] [2020-10-28 12:47:53,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:47:53,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:47:53,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911073819] [2020-10-28 12:47:53,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:47:53,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:47:53,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:47:53,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:47:53,826 INFO L87 Difference]: Start difference. First operand 7027 states and 7303 transitions. Second operand 8 states. [2020-10-28 12:47:55,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:47:55,780 INFO L93 Difference]: Finished difference Result 13686 states and 14235 transitions. [2020-10-28 12:47:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:47:55,783 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1567 [2020-10-28 12:47:55,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:47:55,803 INFO L225 Difference]: With dead ends: 13686 [2020-10-28 12:47:55,803 INFO L226 Difference]: Without dead ends: 7031 [2020-10-28 12:47:55,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:47:55,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7031 states. [2020-10-28 12:47:55,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7031 to 7027. [2020-10-28 12:47:55,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7027 states. [2020-10-28 12:47:55,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 7285 transitions. [2020-10-28 12:47:55,929 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 7285 transitions. Word has length 1567 [2020-10-28 12:47:55,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:47:55,930 INFO L481 AbstractCegarLoop]: Abstraction has 7027 states and 7285 transitions. [2020-10-28 12:47:55,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:47:55,930 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 7285 transitions. [2020-10-28 12:47:55,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1808 [2020-10-28 12:47:55,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:47:55,968 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 12:47:55,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-28 12:47:55,969 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:47:55,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:47:55,970 INFO L82 PathProgramCache]: Analyzing trace with hash -553460200, now seen corresponding path program 1 times [2020-10-28 12:47:55,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:47:55,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109140588] [2020-10-28 12:47:55,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:47:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:56,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:56,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:01,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:01,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1845 [2020-10-28 12:48:01,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:48:01,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5130 [2020-10-28 12:48:01,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:01,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:01,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:48:01,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-28 12:48:01,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 12:48:01,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:01,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:48:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:01,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:01,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:01,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:48:01,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:01,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:48:01,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:01,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:01,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:01,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:01,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:01,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:01,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:48:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:01,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:01,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:01,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:48:01,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:01,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:48:01,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:01,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:01,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:01,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:01,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:01,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:01,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:48:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:01,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:02,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:02,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:48:02,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:02,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-28 12:48:02,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:02,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:02,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:02,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:02,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:02,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:48:02,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:48:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:02,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:02,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:02,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:48:02,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:02,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:48:02,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:02,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:02,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:02,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:02,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:02,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:02,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:48:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:02,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:02,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:02,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:48:02,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:02,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:48:02,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:02,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:02,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:02,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:02,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:02,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:48:02,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:48:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:02,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:02,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:02,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:48:02,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:02,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 12:48:02,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:02,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:02,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:02,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:02,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:02,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:48:02,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:48:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:02,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:02,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:02,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:48:02,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:02,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:48:02,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:02,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:02,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:02,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:02,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:02,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:02,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:48:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:02,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:02,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:02,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:48:02,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:02,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 12:48:02,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:02,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:02,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:02,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:02,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:02,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:02,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:48:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:02,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:02,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:02,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:48:02,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:02,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:48:02,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:02,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:02,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:02,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:02,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:02,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:02,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:48:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:02,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:02,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:02,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:48:02,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:02,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 12:48:02,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:02,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:02,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:02,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:02,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:02,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:02,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:48:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:02,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:02,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:02,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:48:02,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:02,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 12:48:02,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:02,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:02,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:02,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:02,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:02,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:02,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:48:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:02,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:02,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:02,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:48:02,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:02,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:48:02,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:02,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:02,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:02,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:02,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-28 12:48:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:02,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:03,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:03,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 12:48:03,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:03,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-28 12:48:03,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:03,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:03,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:48:03,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:03,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 12:48:03,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:03,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-28 12:48:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:03,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:03,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:03,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 12:48:03,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:03,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-28 12:48:03,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:03,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:03,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:48:03,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:48:03,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-28 12:48:03,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:03,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1649 [2020-10-28 12:48:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:03,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:03,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:03,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-28 12:48:03,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:03,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:48:03,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:03,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:03,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:03,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-28 12:48:03,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:03,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:05,804 INFO L134 CoverageAnalysis]: Checked inductivity of 10377 backedges. 2081 proven. 104 refuted. 0 times theorem prover too weak. 8192 trivial. 0 not checked. [2020-10-28 12:48:05,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109140588] [2020-10-28 12:48:05,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:48:05,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:48:05,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414567702] [2020-10-28 12:48:05,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:48:05,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:48:05,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:48:05,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:48:05,826 INFO L87 Difference]: Start difference. First operand 7027 states and 7285 transitions. Second operand 8 states. [2020-10-28 12:48:08,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:48:08,442 INFO L93 Difference]: Finished difference Result 14598 states and 15173 transitions. [2020-10-28 12:48:08,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:48:08,444 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1807 [2020-10-28 12:48:08,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:48:08,464 INFO L225 Difference]: With dead ends: 14598 [2020-10-28 12:48:08,464 INFO L226 Difference]: Without dead ends: 7943 [2020-10-28 12:48:08,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:48:08,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7943 states. [2020-10-28 12:48:08,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7943 to 7759. [2020-10-28 12:48:08,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7759 states. [2020-10-28 12:48:08,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7759 states to 7759 states and 8029 transitions. [2020-10-28 12:48:08,620 INFO L78 Accepts]: Start accepts. Automaton has 7759 states and 8029 transitions. Word has length 1807 [2020-10-28 12:48:08,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:48:08,622 INFO L481 AbstractCegarLoop]: Abstraction has 7759 states and 8029 transitions. [2020-10-28 12:48:08,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:48:08,623 INFO L276 IsEmpty]: Start isEmpty. Operand 7759 states and 8029 transitions. [2020-10-28 12:48:08,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1825 [2020-10-28 12:48:08,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:48:08,674 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 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, 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, 4, 3, 3, 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] [2020-10-28 12:48:08,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-28 12:48:08,675 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:48:08,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:48:08,676 INFO L82 PathProgramCache]: Analyzing trace with hash -818933582, now seen corresponding path program 1 times [2020-10-28 12:48:08,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:48:08,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117834314] [2020-10-28 12:48:08,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:48:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:09,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:10,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:10,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:12,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:13,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:13,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1862 [2020-10-28 12:48:13,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:48:13,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-28 12:48:13,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:13,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:13,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:48:13,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-28 12:48:13,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:48:13,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:14,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:48:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:14,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:14,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:14,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:48:14,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:14,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:48:14,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:14,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:14,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:14,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:48:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:14,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:14,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:14,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:48:14,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:14,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:48:14,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:14,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:14,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:14,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:48:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:14,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:14,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:14,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:48:14,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:14,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:48:14,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:14,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:14,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:14,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:14,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:14,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:14,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:48:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:14,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:14,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:14,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:48:14,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:14,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:48:14,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:14,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:14,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:14,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:48:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:14,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:14,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:14,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:48:14,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:14,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:48:14,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:14,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:14,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:14,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:14,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:14,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:14,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:48:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:14,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:14,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:14,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:48:14,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:14,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:48:14,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:14,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:14,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:14,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:14,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:14,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:14,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:48:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:14,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:14,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:14,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:48:14,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:14,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:48:14,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:14,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:14,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:14,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:14,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:14,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:14,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:48:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:14,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:14,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:14,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:48:14,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:14,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 12:48:14,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:14,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:14,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:14,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:14,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:14,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:14,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:48:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:14,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:14,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:14,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:48:14,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:14,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:48:14,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:14,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:14,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:14,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:14,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:14,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:14,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:48:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:14,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:14,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:14,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:48:14,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:14,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:48:14,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:14,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:14,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:14,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:14,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:14,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:14,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:48:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:14,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:14,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:14,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:48:14,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:14,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 12:48:14,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:14,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:14,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:14,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:14,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:14,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:15,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:48:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:15,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:15,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:15,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 12:48:15,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:15,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 12:48:15,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:15,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:48:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-28 12:48:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:15,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-28 12:48:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:15,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:15,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:15,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:48:15,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:15,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-28 12:48:15,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:15,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:15,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:48:15,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:48:15,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:48:15,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:15,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1587 [2020-10-28 12:48:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:15,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:15,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:15,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:48:15,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:15,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:48:15,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:15,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:15,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:15,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 12:48:15,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:15,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:48:15,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1666 [2020-10-28 12:48:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:15,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:15,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:15,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-28 12:48:15,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:15,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 12:48:15,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:15,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-28 12:48:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:15,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:48:17,851 INFO L134 CoverageAnalysis]: Checked inductivity of 10177 backedges. 2244 proven. 180 refuted. 0 times theorem prover too weak. 7753 trivial. 0 not checked. [2020-10-28 12:48:17,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117834314] [2020-10-28 12:48:17,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:48:17,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:48:17,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615108677] [2020-10-28 12:48:17,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:48:17,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:48:17,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:48:17,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:48:17,860 INFO L87 Difference]: Start difference. First operand 7759 states and 8029 transitions. Second operand 7 states. [2020-10-28 12:48:19,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:48:19,610 INFO L93 Difference]: Finished difference Result 14987 states and 15539 transitions. [2020-10-28 12:48:19,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:48:19,611 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1824 [2020-10-28 12:48:19,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:48:19,614 INFO L225 Difference]: With dead ends: 14987 [2020-10-28 12:48:19,614 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 12:48:19,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:48:19,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 12:48:19,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 12:48:19,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 12:48:19,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 12:48:19,634 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1824 [2020-10-28 12:48:19,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:48:19,635 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 12:48:19,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:48:19,635 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 12:48:19,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 12:48:19,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-28 12:48:19,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 12:48:20,921 WARN L193 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 245 [2020-10-28 12:48:22,375 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 245 [2020-10-28 12:48:24,044 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 183 DAG size of output: 99 [2020-10-28 12:48:26,181 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 241 DAG size of output: 94 [2020-10-28 12:48:26,313 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 28 [2020-10-28 12:48:29,367 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 331 DAG size of output: 123 [2020-10-28 12:48:31,435 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 241 DAG size of output: 94 [2020-10-28 12:48:31,491 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 12:48:31,491 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 12:48:31,491 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 12:48:31,491 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 12:48:31,491 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:48:31,492 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~inputA~0 |old(~inputA~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a15~0 |old(~a15~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string7.base| |old(#t~string7.base)|)) [2020-10-28 12:48:31,492 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:48:31,492 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-28 12:48:31,493 INFO L270 CegarLoopResult]: At program point L168(line 168) the Hoare annotation is: (let ((.cse12 (not (<= 8 |old(~a21~0)|))) (.cse13 (not (<= |old(~a21~0)| 8))) (.cse1 (not (<= 8 |old(~a15~0)|))) (.cse2 (not (<= 12 |old(~a12~0)|))) (.cse0 (not (= 7 |old(~a21~0)|))) (.cse9 (not (<= |old(~a24~0)| 1))) (.cse10 (not (<= |old(~a15~0)| 5))) (.cse6 (not (<= 95374 |old(~a12~0)|))) (.cse14 (not (= 6 |old(~a21~0)|))) (.cse11 (not (= 10 |old(~a21~0)|))) (.cse3 (not (<= |old(~a15~0)| 8))) (.cse7 (not (<= 9 |old(~a21~0)|))) (.cse8 (not (= 7 |old(~a15~0)|))) (.cse4 (= 2 |old(~a24~0)|)) (.cse15 (not (= 6 |old(~a15~0)|))) (.cse5 (not (<= |old(~a21~0)| 9)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= (+ |old(~a12~0)| 49) 0)) (not (= |old(~a24~0)| 1)) .cse3) (or .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse0 .cse4 .cse3 .cse8) (or .cse9 .cse2 .cse10) (or .cse11 .cse1) (or .cse0 .cse9 .cse3 .cse10) (or .cse5 .cse1 .cse7 .cse2) (or .cse12 .cse1 .cse13) (or .cse4 .cse12 .cse13 .cse8) (or .cse6 .cse1 .cse14) (or .cse3 .cse14 (not (<= (+ |old(~a12~0)| 43) 0)) .cse10) (or .cse4 .cse3 .cse2 .cse14 .cse8) (or .cse9 .cse3 .cse14 .cse10) (or .cse0 .cse4 .cse3 (not (<= 0 (+ |old(~a12~0)| 2))) (not (<= |old(~a12~0)| 2))) (or .cse4 .cse5 .cse3 .cse7 (not (<= |old(~a12~0)| 76))) (or .cse11 .cse9 .cse10) (or .cse4 (not (<= |old(~a12~0)| 10)) .cse3 .cse14 .cse8) (or .cse4 .cse6 .cse3 .cse14) (or .cse11 .cse4 .cse3 .cse8) (or .cse11 .cse4 .cse15 .cse3) (or .cse4 .cse5 (not (<= |old(~a12~0)| 73282)) .cse7 .cse8) (or .cse4 .cse15 .cse5))) [2020-10-28 12:48:31,493 INFO L274 CegarLoopResult]: For program point L168-1(line 168) no Hoare annotation was computed. [2020-10-28 12:48:31,493 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 12:48:31,493 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 12:48:31,493 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-28 12:48:31,493 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-28 12:48:31,494 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-28 12:48:31,494 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,494 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,494 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,494 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-28 12:48:31,494 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 12:48:31,494 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 12:48:31,494 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 12:48:31,494 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-28 12:48:31,494 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-28 12:48:31,494 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-28 12:48:31,495 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-28 12:48:31,495 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,495 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,495 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,495 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-28 12:48:31,495 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-28 12:48:31,495 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 12:48:31,495 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 12:48:31,496 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 12:48:31,496 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-28 12:48:31,496 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-28 12:48:31,496 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-28 12:48:31,496 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,496 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,496 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,496 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-28 12:48:31,496 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 12:48:31,496 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 12:48:31,496 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 12:48:31,497 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-28 12:48:31,497 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-28 12:48:31,497 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-28 12:48:31,497 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-28 12:48:31,497 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-28 12:48:31,497 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,497 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,497 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,497 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-28 12:48:31,497 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 12:48:31,497 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 12:48:31,498 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 12:48:31,498 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-28 12:48:31,498 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-28 12:48:31,498 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-28 12:48:31,498 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,498 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,498 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,498 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-28 12:48:31,498 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 12:48:31,498 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 12:48:31,498 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 12:48:31,499 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-28 12:48:31,499 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,499 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-28 12:48:31,499 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-28 12:48:31,499 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-28 12:48:31,499 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-28 12:48:31,499 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,499 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,499 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,499 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-28 12:48:31,499 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-28 12:48:31,499 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 12:48:31,499 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 12:48:31,500 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-28 12:48:31,500 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-28 12:48:31,500 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-28 12:48:31,500 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-28 12:48:31,500 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,500 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,500 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,500 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 12:48:31,500 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 12:48:31,500 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 12:48:31,500 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-28 12:48:31,500 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-28 12:48:31,500 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-28 12:48:31,501 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-28 12:48:31,501 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-28 12:48:31,501 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,501 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,501 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,501 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-28 12:48:31,502 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 874) the Hoare annotation is: (let ((.cse21 (= 7 ~a21~0)) (.cse22 (= ~a24~0 |old(~a24~0)|)) (.cse23 (= ~a21~0 |old(~a21~0)|)) (.cse20 (= ~a12~0 |old(~a12~0)|)) (.cse24 (= ~a15~0 |old(~a15~0)|))) (let ((.cse2 (not (<= 12 |old(~a12~0)|))) (.cse17 (not (<= 8 |old(~a21~0)|))) (.cse11 (not (<= 8 |old(~a15~0)|))) (.cse18 (not (<= |old(~a21~0)| 8))) (.cse16 (not (= 6 |old(~a15~0)|))) (.cse14 (not (<= |old(~a21~0)| 9))) (.cse13 (and .cse22 .cse23 .cse20 .cse24)) (.cse15 (not (<= 9 |old(~a21~0)|))) (.cse9 (not (= 7 |old(~a21~0)|))) (.cse10 (and .cse22 .cse20 .cse21 .cse24)) (.cse8 (not (= 7 |old(~a15~0)|))) (.cse4 (= 2 |old(~a24~0)|)) (.cse5 (and .cse22 (= ~a21~0 6) .cse20 .cse24)) (.cse19 (not (<= 95374 |old(~a12~0)|))) (.cse6 (not (<= |old(~a15~0)| 8))) (.cse7 (not (= 6 |old(~a21~0)|))) (.cse12 (not (= 10 |old(~a21~0)|))) (.cse0 (not (<= |old(~a24~0)| 1))) (.cse1 (and (<= ~a15~0 5) (<= ~a24~0 1) .cse22 .cse23 .cse20 .cse24)) (.cse3 (not (<= |old(~a15~0)| 5)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 (not (<= |old(~a12~0)| 10)) .cse6 .cse7 .cse8) (or .cse9 .cse10 .cse11 .cse2) (or .cse12 .cse4 .cse13 .cse6 .cse8) (or .cse14 .cse13 .cse11 .cse15 .cse2) (or .cse4 .cse16 .cse14 .cse13) (or .cse4 .cse5 .cse6 .cse2 .cse7 .cse8) (or .cse4 .cse17 .cse13 .cse18 .cse8) (or .cse5 .cse19 .cse11 .cse7) (or .cse12 .cse13 .cse11) (or .cse4 .cse14 .cse13 .cse6 .cse15 (not (<= |old(~a12~0)| 76))) (or .cse5 .cse6 .cse7 (not (<= (+ |old(~a12~0)| 43) 0)) .cse3) (or .cse17 .cse13 .cse11 .cse18) (or .cse9 .cse0 .cse10 .cse6 .cse3) (or .cse0 .cse5 .cse6 .cse7 .cse3) (or .cse4 .cse14 .cse13 .cse19 .cse15 .cse8) (or .cse12 .cse4 .cse16 .cse13 .cse6) (or .cse9 (not (= (+ |old(~a12~0)| 49) 0)) (not (= |old(~a24~0)| 1)) (and (= ~a15~0 8) (= ~a24~0 1) .cse20 .cse21) (not (= 8 |old(~a15~0)|))) (or .cse4 .cse14 .cse13 (not (<= |old(~a12~0)| 73282)) .cse15 .cse8) (or .cse9 .cse4 .cse10 .cse6 (not (<= 0 (+ |old(~a12~0)| 2))) (not (<= |old(~a12~0)| 2))) (or .cse9 .cse10 .cse4 .cse6 .cse8) (or .cse4 .cse5 .cse19 .cse6 .cse7) (or .cse12 .cse0 .cse1 .cse3)))) [2020-10-28 12:48:31,502 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-28 12:48:31,502 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 12:48:31,502 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 12:48:31,502 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 12:48:31,502 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-28 12:48:31,502 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-28 12:48:31,502 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-28 12:48:31,502 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,502 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,502 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,503 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 12:48:31,503 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 12:48:31,503 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 12:48:31,503 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-28 12:48:31,503 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-28 12:48:31,503 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-28 12:48:31,503 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-28 12:48:31,503 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-28 12:48:31,503 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,503 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,503 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,503 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-28 12:48:31,504 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-28 12:48:31,504 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 12:48:31,504 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 12:48:31,504 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 12:48:31,504 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-28 12:48:31,504 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-28 12:48:31,504 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-28 12:48:31,504 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,504 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,504 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,504 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-28 12:48:31,504 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 12:48:31,504 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 12:48:31,505 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 12:48:31,505 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-28 12:48:31,505 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-28 12:48:31,505 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-28 12:48:31,505 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-28 12:48:31,505 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,505 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,505 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,505 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-28 12:48:31,505 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 12:48:31,505 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 12:48:31,505 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 12:48:31,505 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-28 12:48:31,506 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-28 12:48:31,506 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-28 12:48:31,506 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-28 12:48:31,506 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,506 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,506 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-28 12:48:31,506 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 12:48:31,506 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 12:48:31,506 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-28 12:48:31,506 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-28 12:48:31,506 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-28 12:48:31,506 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-28 12:48:31,506 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-28 12:48:31,507 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,507 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,507 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-28 12:48:31,507 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 12:48:31,507 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 12:48:31,507 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-28 12:48:31,507 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-28 12:48:31,507 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-28 12:48:31,507 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,507 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,507 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-28 12:48:31,507 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-28 12:48:31,507 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 12:48:31,508 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 12:48:31,508 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-28 12:48:31,508 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-28 12:48:31,508 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-28 12:48:31,508 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-28 12:48:31,508 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,508 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,508 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-28 12:48:31,508 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-28 12:48:31,508 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 12:48:31,508 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 12:48:31,508 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,509 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-28 12:48:31,509 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-28 12:48:31,509 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-28 12:48:31,509 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,509 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,509 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-28 12:48:31,509 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-28 12:48:31,509 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 12:48:31,509 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 12:48:31,509 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-28 12:48:31,509 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-28 12:48:31,509 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,509 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,510 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 12:48:31,510 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,510 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-28 12:48:31,510 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-28 12:48:31,510 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-28 12:48:31,510 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 12:48:31,510 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 12:48:31,510 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 12:48:31,510 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-28 12:48:31,510 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-28 12:48:31,510 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-28 12:48:31,510 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-28 12:48:31,510 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,511 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,511 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,511 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-28 12:48:31,511 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 12:48:31,511 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 12:48:31,511 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 12:48:31,511 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-28 12:48:31,511 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-28 12:48:31,511 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-28 12:48:31,511 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-28 12:48:31,511 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,511 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,511 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,511 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-28 12:48:31,512 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-28 12:48:31,512 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 12:48:31,512 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 12:48:31,512 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 12:48:31,512 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-28 12:48:31,512 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-28 12:48:31,512 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-28 12:48:31,512 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,512 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,512 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,512 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-28 12:48:31,512 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 12:48:31,512 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 12:48:31,513 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 12:48:31,513 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-28 12:48:31,513 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-28 12:48:31,513 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-28 12:48:31,513 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-28 12:48:31,513 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-28 12:48:31,513 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,513 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,513 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:48:31,513 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:48:31,513 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a15~0 8) (= ~a24~0 1) (= 7 ~a21~0) (= (+ ~a12~0 49) 0)) [2020-10-28 12:48:31,514 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 12:48:31,514 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:48:31,514 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 876 892) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= (+ |old(~a12~0)| 49) 0)) (not (= |old(~a24~0)| 1)) (and (= ~a15~0 8) (= ~a24~0 1) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|))) [2020-10-28 12:48:31,514 INFO L270 CegarLoopResult]: At program point L890(line 890) the Hoare annotation is: (let ((.cse13 (<= 8 ~a21~0)) (.cse14 (<= ~a21~0 8)) (.cse11 (= 7 ~a21~0)) (.cse3 (<= ~a15~0 5)) (.cse12 (<= ~a24~0 1)) (.cse6 (= ~a21~0 10)) (.cse7 (<= ~a15~0 8)) (.cse1 (= ~a15~0 6)) (.cse8 (or (<= (+ |old(~a12~0)| 43) 0) (<= 81 |old(~a12~0)|))) (.cse15 (<= 95374 ~a12~0)) (.cse5 (= 7 ~a15~0)) (.cse4 (= ~a21~0 6)) (.cse0 (not (= ~a24~0 2))) (.cse16 (<= 9 ~a21~0)) (.cse9 (<= 8 ~a15~0)) (.cse10 (<= 12 ~a12~0)) (.cse2 (<= ~a21~0 9))) (or (and .cse0 .cse1 .cse2) (not (= |old(~a24~0)| 1)) (and .cse3 (<= (+ ~a12~0 43) 0) .cse4) (and .cse5 .cse6 .cse0 .cse7 .cse8) (not (= 8 |old(~a15~0)|)) (and .cse9 .cse6) (and .cse9 .cse10 .cse11) (and .cse3 .cse12 .cse7 .cse11) (and .cse5 .cse13 .cse0 .cse14) (and .cse5 .cse0 .cse7 .cse11) (and .cse9 .cse4 .cse15) (and .cse3 .cse12 .cse10) (and .cse9 .cse13 .cse14) (and (<= ~a12~0 2) .cse0 .cse7 .cse11 (<= 0 (+ ~a12~0 2))) (and .cse12 .cse6) (and .cse16 .cse0 .cse7 .cse2 (<= ~a12~0 76)) (and (= ~a24~0 1) .cse11 (= (+ ~a12~0 49) 0) (= ~a15~0 |old(~a15~0)|)) (and .cse3 .cse12 .cse4) (and .cse4 .cse0 .cse15) (not (= (+ |old(~a12~0)| 49) 0)) (and .cse6 .cse0 .cse7 .cse1 .cse8) (not (= 7 |old(~a21~0)|)) (and .cse5 .cse16 .cse0 .cse2 .cse15) (and .cse5 .cse10 .cse4 .cse0) (and .cse5 .cse16 .cse0 .cse2 (<= ~a12~0 73282)) (and .cse5 (<= ~a12~0 10) .cse4 .cse0) (and .cse16 .cse9 .cse10 .cse2))) [2020-10-28 12:48:31,514 INFO L274 CegarLoopResult]: For program point L890-1(line 890) no Hoare annotation was computed. [2020-10-28 12:48:31,514 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 876 892) no Hoare annotation was computed. [2020-10-28 12:48:31,515 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-28 12:48:31,515 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse13 (<= 8 ~a21~0)) (.cse14 (<= ~a21~0 8)) (.cse11 (= 7 ~a21~0)) (.cse3 (<= ~a15~0 5)) (.cse12 (<= ~a24~0 1)) (.cse6 (= ~a21~0 10)) (.cse7 (<= ~a15~0 8)) (.cse1 (= ~a15~0 6)) (.cse8 (or (<= (+ |old(~a12~0)| 43) 0) (<= 81 |old(~a12~0)|))) (.cse15 (<= 95374 ~a12~0)) (.cse5 (= 7 ~a15~0)) (.cse4 (= ~a21~0 6)) (.cse0 (not (= ~a24~0 2))) (.cse16 (<= 9 ~a21~0)) (.cse9 (<= 8 ~a15~0)) (.cse10 (<= 12 ~a12~0)) (.cse2 (<= ~a21~0 9))) (or (and .cse0 .cse1 .cse2) (not (= |old(~a24~0)| 1)) (and .cse3 (<= (+ ~a12~0 43) 0) .cse4) (and .cse5 .cse6 .cse0 .cse7 .cse8) (not (= 8 |old(~a15~0)|)) (and .cse9 .cse6) (and .cse9 .cse10 .cse11) (and .cse3 .cse12 .cse7 .cse11) (and .cse5 .cse13 .cse0 .cse14) (and .cse5 .cse0 .cse7 .cse11) (and .cse9 .cse4 .cse15) (and .cse3 .cse12 .cse10) (and .cse9 .cse13 .cse14) (and (<= ~a12~0 2) .cse0 .cse7 .cse11 (<= 0 (+ ~a12~0 2))) (and .cse12 .cse6) (and .cse16 .cse0 .cse7 .cse2 (<= ~a12~0 76)) (and (= ~a24~0 1) .cse11 (= (+ ~a12~0 49) 0) (= ~a15~0 |old(~a15~0)|)) (and .cse3 .cse12 .cse4) (and .cse4 .cse0 .cse15) (not (= (+ |old(~a12~0)| 49) 0)) (and .cse6 .cse0 .cse7 .cse1 .cse8) (not (= 7 |old(~a21~0)|)) (and .cse5 .cse16 .cse0 .cse2 .cse15) (and .cse5 .cse10 .cse4 .cse0) (and .cse5 .cse16 .cse0 .cse2 (<= ~a12~0 73282)) (and .cse5 (<= ~a12~0 10) .cse4 .cse0) (and .cse16 .cse9 .cse10 .cse2))) [2020-10-28 12:48:31,515 INFO L274 CegarLoopResult]: For program point L882-3(lines 876 892) no Hoare annotation was computed. [2020-10-28 12:48:31,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 12:48:31 BoogieIcfgContainer [2020-10-28 12:48:31,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 12:48:31,544 INFO L168 Benchmark]: Toolchain (without parser) took 199284.36 ms. Allocated memory was 156.2 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 129.5 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.7 GB. Max. memory is 8.0 GB. [2020-10-28 12:48:31,545 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 156.2 MB. Free memory was 128.5 MB in the beginning and 128.4 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 12:48:31,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 873.26 ms. Allocated memory is still 156.2 MB. Free memory was 128.8 MB in the beginning and 129.1 MB in the end (delta: -299.1 kB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. [2020-10-28 12:48:31,546 INFO L168 Benchmark]: Boogie Preprocessor took 145.47 ms. Allocated memory is still 156.2 MB. Free memory was 129.1 MB in the beginning and 123.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 12:48:31,546 INFO L168 Benchmark]: RCFGBuilder took 1778.82 ms. Allocated memory is still 156.2 MB. Free memory was 123.5 MB in the beginning and 84.8 MB in the end (delta: 38.7 MB). Peak memory consumption was 80.7 MB. Max. memory is 8.0 GB. [2020-10-28 12:48:31,547 INFO L168 Benchmark]: TraceAbstraction took 196470.97 ms. Allocated memory was 156.2 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 84.3 MB in the beginning and 1.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.6 GB. Max. memory is 8.0 GB. [2020-10-28 12:48:31,549 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 156.2 MB. Free memory was 128.5 MB in the beginning and 128.4 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 873.26 ms. Allocated memory is still 156.2 MB. Free memory was 128.8 MB in the beginning and 129.1 MB in the end (delta: -299.1 kB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 145.47 ms. Allocated memory is still 156.2 MB. Free memory was 129.1 MB in the beginning and 123.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1778.82 ms. Allocated memory is still 156.2 MB. Free memory was 123.5 MB in the beginning and 84.8 MB in the end (delta: 38.7 MB). Peak memory consumption was 80.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 196470.97 ms. Allocated memory was 156.2 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 84.3 MB in the beginning and 1.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.6 GB. 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: 882]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((!(a24 == 2) && a15 == 6) && a21 <= 9) || !(\old(a24) == 1)) || ((a15 <= 5 && a12 + 43 <= 0) && a21 == 6)) || ((((7 == a15 && a21 == 10) && !(a24 == 2)) && a15 <= 8) && (\old(a12) + 43 <= 0 || 81 <= \old(a12)))) || !(8 == \old(a15))) || (8 <= a15 && a21 == 10)) || ((8 <= a15 && 12 <= a12) && 7 == a21)) || (((a15 <= 5 && a24 <= 1) && a15 <= 8) && 7 == a21)) || (((7 == a15 && 8 <= a21) && !(a24 == 2)) && a21 <= 8)) || (((7 == a15 && !(a24 == 2)) && a15 <= 8) && 7 == a21)) || ((8 <= a15 && a21 == 6) && 95374 <= a12)) || ((a15 <= 5 && a24 <= 1) && 12 <= a12)) || ((8 <= a15 && 8 <= a21) && a21 <= 8)) || ((((a12 <= 2 && !(a24 == 2)) && a15 <= 8) && 7 == a21) && 0 <= a12 + 2)) || (a24 <= 1 && a21 == 10)) || ((((9 <= a21 && !(a24 == 2)) && a15 <= 8) && a21 <= 9) && a12 <= 76)) || (((a24 == 1 && 7 == a21) && a12 + 49 == 0) && a15 == \old(a15))) || ((a15 <= 5 && a24 <= 1) && a21 == 6)) || ((a21 == 6 && !(a24 == 2)) && 95374 <= a12)) || !(\old(a12) + 49 == 0)) || ((((a21 == 10 && !(a24 == 2)) && a15 <= 8) && a15 == 6) && (\old(a12) + 43 <= 0 || 81 <= \old(a12)))) || !(7 == \old(a21))) || ((((7 == a15 && 9 <= a21) && !(a24 == 2)) && a21 <= 9) && 95374 <= a12)) || (((7 == a15 && 12 <= a12) && a21 == 6) && !(a24 == 2))) || ((((7 == a15 && 9 <= a21) && !(a24 == 2)) && a21 <= 9) && a12 <= 73282)) || (((7 == a15 && a12 <= 10) && a21 == 6) && !(a24 == 2))) || (((9 <= a21 && 8 <= a15) && 12 <= a12) && a21 <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 184.4s, OverallIterations: 23, TraceHistogramMax: 15, AutomataDifference: 48.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 636 SDtfs, 13720 SDslu, 812 SDs, 0 SdLazy, 25567 SolverSat, 3071 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 33.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 608 GetRequests, 395 SyntacticMatches, 7 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7759occurred in iteration=22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 23 MinimizatonAttempts, 3335 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 1023 PreInvPairs, 1149 NumberOfFragments, 1837 HoareAnnotationTreeSize, 1023 FomulaSimplifications, 64275 FormulaSimplificationTreeSizeReduction, 2.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 20933 FormulaSimplificationTreeSizeReductionInter, 9.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 114.9s InterpolantComputationTime, 17701 NumberOfCodeBlocks, 17701 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 17678 ConstructedInterpolants, 0 QuantifiedInterpolants, 35276060 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 4 PerfectInterpolantSequences, 61742/63497 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...