/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label27.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 00:28:46,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 00:28:46,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 00:28:47,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 00:28:47,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 00:28:47,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 00:28:47,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 00:28:47,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 00:28:47,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 00:28:47,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 00:28:47,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 00:28:47,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 00:28:47,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 00:28:47,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 00:28:47,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 00:28:47,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 00:28:47,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 00:28:47,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 00:28:47,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 00:28:47,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 00:28:47,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 00:28:47,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 00:28:47,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 00:28:47,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 00:28:47,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 00:28:47,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 00:28:47,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 00:28:47,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 00:28:47,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 00:28:47,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 00:28:47,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 00:28:47,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 00:28:47,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 00:28:47,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 00:28:47,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 00:28:47,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 00:28:47,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 00:28:47,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 00:28:47,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 00:28:47,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 00:28:47,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 00:28:47,085 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 00:28:47,123 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 00:28:47,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 00:28:47,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 00:28:47,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 00:28:47,128 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 00:28:47,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 00:28:47,130 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 00:28:47,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 00:28:47,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 00:28:47,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 00:28:47,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 00:28:47,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 00:28:47,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 00:28:47,131 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 00:28:47,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 00:28:47,131 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 00:28:47,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 00:28:47,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 00:28:47,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 00:28:47,132 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 00:28:47,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 00:28:47,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 00:28:47,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 00:28:47,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 00:28:47,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 00:28:47,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 00:28:47,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 00:28:47,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 00:28:47,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 00:28:47,137 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 00:28:47,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 00:28:47,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 00:28:47,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 00:28:47,673 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 00:28:47,674 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 00:28:47,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label27.c [2020-10-27 00:28:47,781 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c696c9255/3cf1c86e5b134225a852b291ad03092f/FLAG2f8767e55 [2020-10-27 00:28:48,762 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 00:28:48,762 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label27.c [2020-10-27 00:28:48,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c696c9255/3cf1c86e5b134225a852b291ad03092f/FLAG2f8767e55 [2020-10-27 00:28:49,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c696c9255/3cf1c86e5b134225a852b291ad03092f [2020-10-27 00:28:49,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 00:28:49,321 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 00:28:49,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 00:28:49,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 00:28:49,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 00:28:49,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:28:49" (1/1) ... [2020-10-27 00:28:49,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4024b2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:28:49, skipping insertion in model container [2020-10-27 00:28:49,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:28:49" (1/1) ... [2020-10-27 00:28:49,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 00:28:49,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 00:28:50,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 00:28:50,919 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 00:28:51,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 00:28:51,616 INFO L208 MainTranslator]: Completed translation [2020-10-27 00:28:51,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:28:51 WrapperNode [2020-10-27 00:28:51,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 00:28:51,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 00:28:51,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 00:28:51,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 00:28:51,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:28:51" (1/1) ... [2020-10-27 00:28:51,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:28:51" (1/1) ... [2020-10-27 00:28:51,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:28:51" (1/1) ... [2020-10-27 00:28:51,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:28:51" (1/1) ... [2020-10-27 00:28:51,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:28:51" (1/1) ... [2020-10-27 00:28:51,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:28:51" (1/1) ... [2020-10-27 00:28:51,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:28:51" (1/1) ... [2020-10-27 00:28:51,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 00:28:51,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 00:28:51,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 00:28:51,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 00:28:51,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:28:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 00:28:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 00:28:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 00:28:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 00:28:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 00:28:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-27 00:28:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-27 00:28:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 00:28:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 00:28:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-27 00:28:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-27 00:28:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 00:28:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 00:28:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 00:28:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 00:28:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 00:28:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 00:28:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 00:28:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 00:28:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 00:28:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 00:28:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 00:28:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 00:28:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 00:28:56,284 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 00:28:56,285 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 00:28:56,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:28:56 BoogieIcfgContainer [2020-10-27 00:28:56,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 00:28:56,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 00:28:56,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 00:28:56,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 00:28:56,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:28:49" (1/3) ... [2020-10-27 00:28:56,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ef7d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:28:56, skipping insertion in model container [2020-10-27 00:28:56,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:28:51" (2/3) ... [2020-10-27 00:28:56,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ef7d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:28:56, skipping insertion in model container [2020-10-27 00:28:56,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:28:56" (3/3) ... [2020-10-27 00:28:56,304 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem18_label27.c [2020-10-27 00:28:56,325 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 00:28:56,333 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 00:28:56,351 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 00:28:56,403 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 00:28:56,403 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 00:28:56,404 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 00:28:56,404 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 00:28:56,404 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 00:28:56,404 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 00:28:56,404 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 00:28:56,404 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 00:28:56,441 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states. [2020-10-27 00:28:56,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-27 00:28:56,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:28:56,450 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] [2020-10-27 00:28:56,451 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:28:56,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:28:56,458 INFO L82 PathProgramCache]: Analyzing trace with hash 81102480, now seen corresponding path program 1 times [2020-10-27 00:28:56,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:28:56,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412008754] [2020-10-27 00:28:56,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:28:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:28:56,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:28:57,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:28:57,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-27 00:28:57,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:28:57,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 515 [2020-10-27 00:28:57,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:28:57,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 00:28:57,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 00:28:57,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 00:28:57,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 00:28:57,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:28:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:28:57,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:28:57,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:28:57,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:28:57,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:28:57,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 00:28:57,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:28:57,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:28:57,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:28:57,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 00:28:57,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 00:28:57,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 00:28:57,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412008754] [2020-10-27 00:28:57,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 00:28:57,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 00:28:57,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564937591] [2020-10-27 00:28:57,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 00:28:57,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:28:57,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 00:28:57,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 00:28:57,507 INFO L87 Difference]: Start difference. First operand 778 states. Second operand 5 states. [2020-10-27 00:28:58,511 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-27 00:29:10,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:29:10,630 INFO L93 Difference]: Finished difference Result 2989 states and 5773 transitions. [2020-10-27 00:29:10,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 00:29:10,633 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-10-27 00:29:10,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:29:10,674 INFO L225 Difference]: With dead ends: 2989 [2020-10-27 00:29:10,674 INFO L226 Difference]: Without dead ends: 2143 [2020-10-27 00:29:10,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:29:10,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2020-10-27 00:29:10,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 2136. [2020-10-27 00:29:10,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2136 states. [2020-10-27 00:29:10,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 3228 transitions. [2020-10-27 00:29:10,942 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 3228 transitions. Word has length 37 [2020-10-27 00:29:10,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:29:10,943 INFO L481 AbstractCegarLoop]: Abstraction has 2136 states and 3228 transitions. [2020-10-27 00:29:10,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 00:29:10,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 3228 transitions. [2020-10-27 00:29:10,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-27 00:29:10,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:29:10,955 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:29:10,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 00:29:10,956 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:29:10,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:29:10,958 INFO L82 PathProgramCache]: Analyzing trace with hash -878391991, now seen corresponding path program 1 times [2020-10-27 00:29:10,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:29:10,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551945009] [2020-10-27 00:29:10,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:29:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:29:11,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:11,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:11,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:29:11,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-27 00:29:11,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 00:29:11,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 915 [2020-10-27 00:29:11,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:29:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 00:29:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 00:29:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-27 00:29:11,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 00:29:12,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:29:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:29:12,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:12,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:29:12,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:29:12,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:29:12,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 00:29:12,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:29:12,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:29:12,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:29:12,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 00:29:12,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 00:29:12,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:29:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:29:12,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:12,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:29:12,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 00:29:12,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:29:12,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-27 00:29:12,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:29:12,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:29:12,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:29:12,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 00:29:12,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:29:12,406 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 00:29:12,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551945009] [2020-10-27 00:29:12,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 00:29:12,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 00:29:12,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142038915] [2020-10-27 00:29:12,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:29:12,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:29:12,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:29:12,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:29:12,412 INFO L87 Difference]: Start difference. First operand 2136 states and 3228 transitions. Second operand 7 states. [2020-10-27 00:29:25,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:29:25,923 INFO L93 Difference]: Finished difference Result 6520 states and 9963 transitions. [2020-10-27 00:29:25,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 00:29:25,924 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-10-27 00:29:25,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:29:25,952 INFO L225 Difference]: With dead ends: 6520 [2020-10-27 00:29:25,953 INFO L226 Difference]: Without dead ends: 4390 [2020-10-27 00:29:25,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:29:25,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4390 states. [2020-10-27 00:29:26,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4390 to 4342. [2020-10-27 00:29:26,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4342 states. [2020-10-27 00:29:26,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4342 states to 4342 states and 5865 transitions. [2020-10-27 00:29:26,139 INFO L78 Accepts]: Start accepts. Automaton has 4342 states and 5865 transitions. Word has length 107 [2020-10-27 00:29:26,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:29:26,140 INFO L481 AbstractCegarLoop]: Abstraction has 4342 states and 5865 transitions. [2020-10-27 00:29:26,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:29:26,140 INFO L276 IsEmpty]: Start isEmpty. Operand 4342 states and 5865 transitions. [2020-10-27 00:29:26,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-27 00:29:26,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:29:26,146 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:29:26,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 00:29:26,147 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:29:26,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:29:26,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1437132475, now seen corresponding path program 1 times [2020-10-27 00:29:26,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:29:26,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [375283682] [2020-10-27 00:29:26,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:29:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:29:26,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:26,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:27,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:29:27,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-27 00:29:27,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 00:29:27,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1287 [2020-10-27 00:29:27,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:29:27,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 00:29:27,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 00:29:27,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-27 00:29:27,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:29:27,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:29:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:29:27,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:27,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:29:27,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:29:27,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:29:27,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 00:29:27,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:29:27,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:29:27,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:29:27,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 00:29:27,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 00:29:27,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:29:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:29:27,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:28,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:29:28,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 00:29:28,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:29:28,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-27 00:29:28,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:29:28,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:29:28,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:29:28,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 00:29:28,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:29:28,262 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 00:29:28,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [375283682] [2020-10-27 00:29:28,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 00:29:28,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 00:29:28,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105939726] [2020-10-27 00:29:28,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:29:28,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:29:28,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:29:28,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:29:28,270 INFO L87 Difference]: Start difference. First operand 4342 states and 5865 transitions. Second operand 7 states. [2020-10-27 00:29:39,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:29:39,597 INFO L93 Difference]: Finished difference Result 13234 states and 18292 transitions. [2020-10-27 00:29:39,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 00:29:39,598 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-10-27 00:29:39,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:29:39,663 INFO L225 Difference]: With dead ends: 13234 [2020-10-27 00:29:39,663 INFO L226 Difference]: Without dead ends: 8898 [2020-10-27 00:29:39,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:29:39,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8898 states. [2020-10-27 00:29:39,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8898 to 8057. [2020-10-27 00:29:39,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8057 states. [2020-10-27 00:29:39,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8057 states to 8057 states and 10136 transitions. [2020-10-27 00:29:39,986 INFO L78 Accepts]: Start accepts. Automaton has 8057 states and 10136 transitions. Word has length 169 [2020-10-27 00:29:39,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:29:39,989 INFO L481 AbstractCegarLoop]: Abstraction has 8057 states and 10136 transitions. [2020-10-27 00:29:39,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:29:39,989 INFO L276 IsEmpty]: Start isEmpty. Operand 8057 states and 10136 transitions. [2020-10-27 00:29:40,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-27 00:29:40,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:29:40,002 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:29:40,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 00:29:40,002 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:29:40,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:29:40,007 INFO L82 PathProgramCache]: Analyzing trace with hash -2070233096, now seen corresponding path program 1 times [2020-10-27 00:29:40,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:29:40,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036562212] [2020-10-27 00:29:40,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:29:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:29:40,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:40,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:41,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:43,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:29:43,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-27 00:29:43,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 00:29:43,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3773 [2020-10-27 00:29:43,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:29:43,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 00:29:43,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 00:29:43,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-27 00:29:43,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:29:44,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:29:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:29:44,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:44,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:29:44,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:29:44,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:29:44,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 00:29:44,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:29:44,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:29:44,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:29:44,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 00:29:44,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:29:44,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:29:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:29:44,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:44,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:29:44,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-27 00:29:44,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:29:44,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-27 00:29:44,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:29:44,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:29:44,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:29:44,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-27 00:29:44,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:29:44,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 00:29:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:29:44,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:44,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:29:44,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 00:29:44,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:29:44,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 00:29:44,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:29:44,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:29:44,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-27 00:29:44,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:29:44,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 00:29:44,657 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 58 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 00:29:44,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1036562212] [2020-10-27 00:29:44,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:29:44,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 00:29:44,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375208164] [2020-10-27 00:29:44,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 00:29:44,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:29:44,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 00:29:44,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-27 00:29:44,661 INFO L87 Difference]: Start difference. First operand 8057 states and 10136 transitions. Second operand 8 states. [2020-10-27 00:29:57,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:29:57,860 INFO L93 Difference]: Finished difference Result 19184 states and 23911 transitions. [2020-10-27 00:29:57,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 00:29:57,861 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 232 [2020-10-27 00:29:57,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:29:57,928 INFO L225 Difference]: With dead ends: 19184 [2020-10-27 00:29:57,928 INFO L226 Difference]: Without dead ends: 11133 [2020-10-27 00:29:57,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-27 00:29:57,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11133 states. [2020-10-27 00:29:58,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11133 to 10261. [2020-10-27 00:29:58,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10261 states. [2020-10-27 00:29:58,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10261 states to 10261 states and 12632 transitions. [2020-10-27 00:29:58,226 INFO L78 Accepts]: Start accepts. Automaton has 10261 states and 12632 transitions. Word has length 232 [2020-10-27 00:29:58,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:29:58,228 INFO L481 AbstractCegarLoop]: Abstraction has 10261 states and 12632 transitions. [2020-10-27 00:29:58,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 00:29:58,228 INFO L276 IsEmpty]: Start isEmpty. Operand 10261 states and 12632 transitions. [2020-10-27 00:29:58,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2020-10-27 00:29:58,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:29:58,239 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:29:58,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 00:29:58,239 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:29:58,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:29:58,240 INFO L82 PathProgramCache]: Analyzing trace with hash 692906935, now seen corresponding path program 1 times [2020-10-27 00:29:58,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:29:58,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952375067] [2020-10-27 00:29:58,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:29:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:29:58,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:58,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:58,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:29:59,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:02,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:02,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 434 [2020-10-27 00:30:02,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 00:30:02,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4197 [2020-10-27 00:30:02,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:02,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:30:02,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-27 00:30:02,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 00:30:02,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:02,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:30:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:02,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:02,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:02,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:30:02,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:02,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 00:30:02,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:02,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:30:02,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:30:02,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:30:02,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 00:30:02,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:30:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:02,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:02,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:02,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-27 00:30:02,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:02,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-27 00:30:02,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:02,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:30:02,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:30:02,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-27 00:30:02,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:03,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-27 00:30:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:03,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:03,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:03,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:03,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-27 00:30:03,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 00:30:03,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-10-27 00:30:03,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:30:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:30:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-27 00:30:03,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:03,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-27 00:30:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:03,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:03,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:03,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 00:30:03,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:03,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 00:30:03,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:03,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:30:03,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-27 00:30:03,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:30:03,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:04,214 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 210 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-27 00:30:04,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952375067] [2020-10-27 00:30:04,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:30:04,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 00:30:04,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783363559] [2020-10-27 00:30:04,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 00:30:04,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:30:04,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 00:30:04,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 00:30:04,218 INFO L87 Difference]: Start difference. First operand 10261 states and 12632 transitions. Second operand 6 states. [2020-10-27 00:30:12,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:30:12,368 INFO L93 Difference]: Finished difference Result 20773 states and 25600 transitions. [2020-10-27 00:30:12,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 00:30:12,371 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 418 [2020-10-27 00:30:12,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:30:12,415 INFO L225 Difference]: With dead ends: 20773 [2020-10-27 00:30:12,416 INFO L226 Difference]: Without dead ends: 10286 [2020-10-27 00:30:12,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-27 00:30:12,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10286 states. [2020-10-27 00:30:12,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10286 to 10195. [2020-10-27 00:30:12,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10195 states. [2020-10-27 00:30:12,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10195 states to 10195 states and 11491 transitions. [2020-10-27 00:30:12,681 INFO L78 Accepts]: Start accepts. Automaton has 10195 states and 11491 transitions. Word has length 418 [2020-10-27 00:30:12,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:30:12,682 INFO L481 AbstractCegarLoop]: Abstraction has 10195 states and 11491 transitions. [2020-10-27 00:30:12,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 00:30:12,682 INFO L276 IsEmpty]: Start isEmpty. Operand 10195 states and 11491 transitions. [2020-10-27 00:30:12,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2020-10-27 00:30:12,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:30:12,694 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:30:12,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 00:30:12,694 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:30:12,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:30:12,695 INFO L82 PathProgramCache]: Analyzing trace with hash 68607162, now seen corresponding path program 1 times [2020-10-27 00:30:12,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:30:12,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786287968] [2020-10-27 00:30:12,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:30:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:12,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:13,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:13,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:17,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:17,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 457 [2020-10-27 00:30:17,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 00:30:17,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-27 00:30:17,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:17,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 00:30:17,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 00:30:17,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-27 00:30:17,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:18,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:30:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:18,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:18,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:18,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:30:18,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:18,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 00:30:18,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:18,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:30:18,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:30:18,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 00:30:18,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 00:30:18,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:30:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:18,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:19,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:19,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:30:19,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:19,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 860 [2020-10-27 00:30:19,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:19,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 00:30:19,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:30:19,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-27 00:30:19,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:19,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:30:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:19,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:19,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:19,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:30:19,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:19,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-27 00:30:19,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:19,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 00:30:19,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:30:19,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 00:30:19,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:19,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-27 00:30:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:19,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:19,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:19,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 00:30:19,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:19,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 00:30:19,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:19,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:30:19,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-27 00:30:19,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:30:19,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 58 proven. 92 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 00:30:19,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786287968] [2020-10-27 00:30:19,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:30:19,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 00:30:19,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656810992] [2020-10-27 00:30:19,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:30:19,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:30:19,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:30:19,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:30:19,852 INFO L87 Difference]: Start difference. First operand 10195 states and 11491 transitions. Second operand 7 states. [2020-10-27 00:30:29,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:30:29,392 INFO L93 Difference]: Finished difference Result 26420 states and 30494 transitions. [2020-10-27 00:30:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 00:30:29,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 441 [2020-10-27 00:30:29,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:30:29,457 INFO L225 Difference]: With dead ends: 26420 [2020-10-27 00:30:29,458 INFO L226 Difference]: Without dead ends: 16231 [2020-10-27 00:30:29,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:30:29,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16231 states. [2020-10-27 00:30:29,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16231 to 15412. [2020-10-27 00:30:29,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15412 states. [2020-10-27 00:30:29,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15412 states to 15412 states and 17385 transitions. [2020-10-27 00:30:29,829 INFO L78 Accepts]: Start accepts. Automaton has 15412 states and 17385 transitions. Word has length 441 [2020-10-27 00:30:29,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:30:29,830 INFO L481 AbstractCegarLoop]: Abstraction has 15412 states and 17385 transitions. [2020-10-27 00:30:29,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:30:29,830 INFO L276 IsEmpty]: Start isEmpty. Operand 15412 states and 17385 transitions. [2020-10-27 00:30:29,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2020-10-27 00:30:29,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:30:29,868 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:30:29,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 00:30:29,868 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:30:29,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:30:29,869 INFO L82 PathProgramCache]: Analyzing trace with hash -823751429, now seen corresponding path program 1 times [2020-10-27 00:30:29,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:30:29,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605440574] [2020-10-27 00:30:29,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:30:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:30,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:30,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:35,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:35,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 990 [2020-10-27 00:30:35,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 00:30:35,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5096 [2020-10-27 00:30:35,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:35,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:30:35,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-27 00:30:35,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 00:30:35,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:35,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:30:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:35,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:35,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:35,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:30:35,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:35,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 00:30:35,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:35,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:30:35,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:30:35,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:30:35,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 00:30:35,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:30:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:35,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:35,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:35,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:30:35,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:35,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-27 00:30:35,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:30:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:30:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:30:35,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 00:30:35,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:30:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:35,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:35,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:35,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:30:35,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:35,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 00:30:35,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:35,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:30:35,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:30:35,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:30:35,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:35,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:30:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:35,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:35,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:35,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:30:35,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:35,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:30:36,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:30:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:30:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:30:36,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:36,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:30:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:36,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:36,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:36,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:30:36,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:36,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-27 00:30:36,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:36,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:30:36,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:30:36,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-27 00:30:36,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:36,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:30:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:36,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:36,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:36,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:30:36,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:36,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 00:30:36,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:36,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:30:36,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:30:36,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 00:30:36,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 00:30:36,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:30:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:36,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:36,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:36,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 00:30:36,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:36,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-27 00:30:36,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:36,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:30:36,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:30:36,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 00:30:36,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 283 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-27 00:30:37,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605440574] [2020-10-27 00:30:37,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:30:37,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 00:30:37,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685101507] [2020-10-27 00:30:37,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:30:37,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:30:37,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:30:37,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:30:37,537 INFO L87 Difference]: Start difference. First operand 15412 states and 17385 transitions. Second operand 7 states. [2020-10-27 00:30:52,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:30:52,689 INFO L93 Difference]: Finished difference Result 37512 states and 43357 transitions. [2020-10-27 00:30:52,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 00:30:52,690 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 968 [2020-10-27 00:30:52,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:30:52,768 INFO L225 Difference]: With dead ends: 37512 [2020-10-27 00:30:52,768 INFO L226 Difference]: Without dead ends: 22106 [2020-10-27 00:30:52,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:30:52,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22106 states. [2020-10-27 00:30:53,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22106 to 21268. [2020-10-27 00:30:53,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21268 states. [2020-10-27 00:30:53,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21268 states to 21268 states and 23835 transitions. [2020-10-27 00:30:53,247 INFO L78 Accepts]: Start accepts. Automaton has 21268 states and 23835 transitions. Word has length 968 [2020-10-27 00:30:53,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:30:53,249 INFO L481 AbstractCegarLoop]: Abstraction has 21268 states and 23835 transitions. [2020-10-27 00:30:53,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:30:53,249 INFO L276 IsEmpty]: Start isEmpty. Operand 21268 states and 23835 transitions. [2020-10-27 00:30:53,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1045 [2020-10-27 00:30:53,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:30:53,299 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:30:53,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 00:30:53,299 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:30:53,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:30:53,300 INFO L82 PathProgramCache]: Analyzing trace with hash -864837034, now seen corresponding path program 1 times [2020-10-27 00:30:53,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:30:53,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1614599183] [2020-10-27 00:30:53,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:30:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:53,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:53,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:54,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:58,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:58,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1068 [2020-10-27 00:30:58,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 00:30:58,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 00:30:58,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:58,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:30:58,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-27 00:30:58,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-27 00:30:58,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:58,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:30:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:58,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:58,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:58,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:30:58,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:30:58,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:30:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:30:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:30:58,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:58,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:30:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:58,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:58,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:58,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:30:58,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:58,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-27 00:30:58,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:58,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:30:58,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:30:58,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:30:58,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:59,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:30:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:59,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:59,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:59,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:30:59,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:59,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 00:30:59,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:30:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:30:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:30:59,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:59,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:30:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:59,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:59,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:59,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:30:59,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:59,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 00:30:59,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:30:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:30:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:30:59,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 00:30:59,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:30:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:59,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:59,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:59,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:30:59,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:59,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-27 00:30:59,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:30:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:30:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-27 00:30:59,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:59,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:30:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:59,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:59,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:59,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:30:59,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:59,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 00:30:59,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:59,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:30:59,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:30:59,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 00:30:59,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:30:59,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:30:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:30:59,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:30:59,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:30:59,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 00:30:59,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:30:59,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 00:30:59,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:30:59,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:30:59,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:30:59,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 00:30:59,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:00,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-27 00:31:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:00,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:00,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:00,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 00:31:00,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:00,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 00:31:00,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:00,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:00,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-27 00:31:00,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:00,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:00,723 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 278 proven. 75 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2020-10-27 00:31:00,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1614599183] [2020-10-27 00:31:00,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:31:00,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 00:31:00,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952708758] [2020-10-27 00:31:00,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:31:00,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:31:00,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:31:00,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:31:00,726 INFO L87 Difference]: Start difference. First operand 21268 states and 23835 transitions. Second operand 7 states. [2020-10-27 00:31:10,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:31:10,742 INFO L93 Difference]: Finished difference Result 56198 states and 64208 transitions. [2020-10-27 00:31:10,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 00:31:10,743 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1044 [2020-10-27 00:31:10,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:31:10,867 INFO L225 Difference]: With dead ends: 56198 [2020-10-27 00:31:10,867 INFO L226 Difference]: Without dead ends: 34936 [2020-10-27 00:31:10,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:31:10,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34936 states. [2020-10-27 00:31:11,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34936 to 32692. [2020-10-27 00:31:11,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32692 states. [2020-10-27 00:31:11,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32692 states to 32692 states and 37326 transitions. [2020-10-27 00:31:11,621 INFO L78 Accepts]: Start accepts. Automaton has 32692 states and 37326 transitions. Word has length 1044 [2020-10-27 00:31:11,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:31:11,623 INFO L481 AbstractCegarLoop]: Abstraction has 32692 states and 37326 transitions. [2020-10-27 00:31:11,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:31:11,624 INFO L276 IsEmpty]: Start isEmpty. Operand 32692 states and 37326 transitions. [2020-10-27 00:31:11,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1201 [2020-10-27 00:31:11,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:31:11,905 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:31:11,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 00:31:11,906 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:31:11,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:31:11,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1486157017, now seen corresponding path program 1 times [2020-10-27 00:31:11,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:31:11,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063222621] [2020-10-27 00:31:11,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:31:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:12,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:12,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:14,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:15,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:17,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:17,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1226 [2020-10-27 00:31:17,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 00:31:17,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-27 00:31:17,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:17,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:31:17,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-27 00:31:17,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-27 00:31:17,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:17,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:31:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:17,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:17,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:17,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:31:17,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:17,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 00:31:17,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:17,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:17,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:17,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:17,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:17,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:31:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:17,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:17,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:17,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:31:17,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:17,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-27 00:31:17,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:17,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:17,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:17,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:31:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:17,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:18,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:18,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:31:18,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:18,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-27 00:31:18,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:18,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:18,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:18,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:18,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:18,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:31:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:18,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:18,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:18,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:31:18,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:18,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:31:18,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:18,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:18,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:18,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:18,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:18,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:31:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:18,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:18,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:18,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:31:18,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:18,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-27 00:31:18,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:18,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:18,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:18,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:18,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:18,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:31:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:18,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:18,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:18,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:31:18,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:18,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 00:31:18,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:18,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:18,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:18,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:18,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:18,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:31:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:18,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:18,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:18,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 00:31:18,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:18,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-27 00:31:18,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:18,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:31:18,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:18,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-27 00:31:18,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:18,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-27 00:31:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:18,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:18,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:18,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 00:31:18,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:18,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-27 00:31:18,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:18,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:31:18,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:31:18,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 00:31:18,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:19,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1082 [2020-10-27 00:31:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:19,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:19,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:19,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 00:31:19,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:19,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 00:31:19,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-27 00:31:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:19,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:19,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1385 backedges. 449 proven. 88 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2020-10-27 00:31:19,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2063222621] [2020-10-27 00:31:19,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:31:19,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 00:31:19,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581629058] [2020-10-27 00:31:19,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:31:19,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:31:19,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:31:19,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:31:19,948 INFO L87 Difference]: Start difference. First operand 32692 states and 37326 transitions. Second operand 7 states. [2020-10-27 00:31:29,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:31:29,634 INFO L93 Difference]: Finished difference Result 70449 states and 80395 transitions. [2020-10-27 00:31:29,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 00:31:29,636 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1200 [2020-10-27 00:31:29,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:31:29,741 INFO L225 Difference]: With dead ends: 70449 [2020-10-27 00:31:29,741 INFO L226 Difference]: Without dead ends: 37763 [2020-10-27 00:31:29,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-27 00:31:29,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37763 states. [2020-10-27 00:31:30,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37763 to 36276. [2020-10-27 00:31:30,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36276 states. [2020-10-27 00:31:30,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36276 states to 36276 states and 41335 transitions. [2020-10-27 00:31:30,528 INFO L78 Accepts]: Start accepts. Automaton has 36276 states and 41335 transitions. Word has length 1200 [2020-10-27 00:31:30,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:31:30,530 INFO L481 AbstractCegarLoop]: Abstraction has 36276 states and 41335 transitions. [2020-10-27 00:31:30,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:31:30,530 INFO L276 IsEmpty]: Start isEmpty. Operand 36276 states and 41335 transitions. [2020-10-27 00:31:30,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1215 [2020-10-27 00:31:30,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:31:30,558 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:31:30,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 00:31:30,559 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:31:30,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:31:30,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1288377419, now seen corresponding path program 1 times [2020-10-27 00:31:30,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:31:30,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842869119] [2020-10-27 00:31:30,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:31:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:30,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:32,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:33,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:33,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1240 [2020-10-27 00:31:33,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 00:31:33,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2794 [2020-10-27 00:31:33,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:31:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-27 00:31:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-27 00:31:33,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:33,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:31:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:33,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:33,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:33,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:31:33,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:33,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:31:33,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:33,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:33,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:33,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:33,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:33,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:31:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:33,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:34,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:34,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:31:34,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:34,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-27 00:31:34,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:34,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:34,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:34,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:34,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:34,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:31:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:34,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:34,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:34,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:31:34,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:34,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 00:31:34,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:34,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:34,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:31:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:34,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:34,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:34,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:31:34,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:34,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:31:34,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:34,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:34,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:31:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:34,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:34,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:34,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:31:34,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:34,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-27 00:31:34,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:34,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:34,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:34,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:34,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:34,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:31:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:34,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:34,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:34,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:31:34,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:34,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 00:31:34,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:34,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:34,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:34,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:34,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:34,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:31:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:34,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:34,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:34,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 00:31:34,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:34,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 00:31:34,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:34,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:34,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:34,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:34,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:34,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-27 00:31:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:34,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:34,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:34,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-27 00:31:34,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:34,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 00:31:34,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:31:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 00:31:34,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:34,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-27 00:31:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:34,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:34,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:34,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 00:31:34,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:34,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-27 00:31:34,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:34,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:31:34,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:31:34,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 00:31:34,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:35,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1427 backedges. 504 proven. 2 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2020-10-27 00:31:35,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [842869119] [2020-10-27 00:31:35,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:31:35,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 00:31:35,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720717335] [2020-10-27 00:31:35,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:31:35,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:31:35,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:31:35,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:31:35,543 INFO L87 Difference]: Start difference. First operand 36276 states and 41335 transitions. Second operand 7 states. [2020-10-27 00:31:48,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:31:48,040 INFO L93 Difference]: Finished difference Result 84217 states and 98491 transitions. [2020-10-27 00:31:48,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 00:31:48,042 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1214 [2020-10-27 00:31:48,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:31:48,199 INFO L225 Difference]: With dead ends: 84217 [2020-10-27 00:31:48,200 INFO L226 Difference]: Without dead ends: 47947 [2020-10-27 00:31:48,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:31:48,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47947 states. [2020-10-27 00:31:49,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47947 to 47028. [2020-10-27 00:31:49,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47028 states. [2020-10-27 00:31:49,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47028 states to 47028 states and 53169 transitions. [2020-10-27 00:31:49,188 INFO L78 Accepts]: Start accepts. Automaton has 47028 states and 53169 transitions. Word has length 1214 [2020-10-27 00:31:49,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:31:49,189 INFO L481 AbstractCegarLoop]: Abstraction has 47028 states and 53169 transitions. [2020-10-27 00:31:49,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:31:49,189 INFO L276 IsEmpty]: Start isEmpty. Operand 47028 states and 53169 transitions. [2020-10-27 00:31:49,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1277 [2020-10-27 00:31:49,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:31:49,215 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:31:49,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 00:31:49,215 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:31:49,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:31:49,216 INFO L82 PathProgramCache]: Analyzing trace with hash 482727084, now seen corresponding path program 1 times [2020-10-27 00:31:49,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:31:49,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070040955] [2020-10-27 00:31:49,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:31:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:49,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:49,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:50,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:54,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:54,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1304 [2020-10-27 00:31:54,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 00:31:54,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5082 [2020-10-27 00:31:54,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:54,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:31:54,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-27 00:31:54,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 00:31:54,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:54,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:31:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:54,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:54,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:54,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:31:54,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:54,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 00:31:54,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:54,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:54,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:54,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:31:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:54,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:54,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:54,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:31:54,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:54,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-27 00:31:54,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:54,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:54,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:54,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:54,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:54,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:31:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:54,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:55,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:55,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:31:55,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:55,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 00:31:55,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:55,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:55,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:55,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:31:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:55,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:55,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:55,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:31:55,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:55,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 00:31:55,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:55,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:55,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:55,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:55,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:55,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:31:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:55,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:55,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:55,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:31:55,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:55,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 00:31:55,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:55,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:55,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:31:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:55,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:55,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:55,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:31:55,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:55,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 00:31:55,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:55,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:55,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:55,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:55,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:55,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:31:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:55,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:55,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:55,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 00:31:55,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:55,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-27 00:31:55,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:31:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:31:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-27 00:31:55,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:55,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-27 00:31:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:55,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:55,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:55,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 00:31:55,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:55,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 00:31:55,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:55,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:31:55,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:31:55,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 00:31:55,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:55,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1061 [2020-10-27 00:31:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:55,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:55,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:55,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 00:31:55,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:55,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 00:31:55,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:55,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:55,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-27 00:31:55,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:55,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:55,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1158 [2020-10-27 00:31:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:31:55,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:31:55,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:31:55,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 00:31:55,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:31:55,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 00:31:55,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:31:55,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:31:55,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-27 00:31:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:31:55,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:31:56,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1794 backedges. 427 proven. 148 refuted. 0 times theorem prover too weak. 1219 trivial. 0 not checked. [2020-10-27 00:31:56,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070040955] [2020-10-27 00:31:56,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:31:56,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 00:31:56,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196909678] [2020-10-27 00:31:56,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:31:56,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:31:56,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:31:56,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:31:56,611 INFO L87 Difference]: Start difference. First operand 47028 states and 53169 transitions. Second operand 7 states. [2020-10-27 00:32:12,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:32:12,644 INFO L93 Difference]: Finished difference Result 106228 states and 121932 transitions. [2020-10-27 00:32:12,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 00:32:12,646 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1276 [2020-10-27 00:32:12,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:32:12,868 INFO L225 Difference]: With dead ends: 106228 [2020-10-27 00:32:12,869 INFO L226 Difference]: Without dead ends: 59206 [2020-10-27 00:32:12,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:32:13,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59206 states. [2020-10-27 00:32:14,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59206 to 55614. [2020-10-27 00:32:14,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55614 states. [2020-10-27 00:32:14,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55614 states to 55614 states and 63531 transitions. [2020-10-27 00:32:14,314 INFO L78 Accepts]: Start accepts. Automaton has 55614 states and 63531 transitions. Word has length 1276 [2020-10-27 00:32:14,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:32:14,315 INFO L481 AbstractCegarLoop]: Abstraction has 55614 states and 63531 transitions. [2020-10-27 00:32:14,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:32:14,315 INFO L276 IsEmpty]: Start isEmpty. Operand 55614 states and 63531 transitions. [2020-10-27 00:32:14,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1319 [2020-10-27 00:32:14,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:32:14,351 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, 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, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:32:14,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 00:32:14,351 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:32:14,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:32:14,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1548544048, now seen corresponding path program 1 times [2020-10-27 00:32:14,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:32:14,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494267435] [2020-10-27 00:32:14,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:32:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:32:15,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:32:15,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:32:17,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:32:19,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:32:20,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:32:20,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1346 [2020-10-27 00:32:20,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 00:32:20,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-27 00:32:20,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:32:20,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:32:20,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-27 00:32:20,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 00:32:20,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:32:20,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:32:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:32:20,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:32:20,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:32:20,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:32:20,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:32:20,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:32:20,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:32:20,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:32:20,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:32:20,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:32:20,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:32:20,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:32:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:32:20,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:32:20,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:32:20,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:32:20,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:32:20,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-27 00:32:20,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:32:20,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:32:20,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:32:20,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:32:20,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:32:20,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:32:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:32:20,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:32:20,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:32:20,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:32:20,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:32:20,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 00:32:20,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:32:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:32:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:32:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:32:20,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:32:20,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:32:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:32:20,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:32:20,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:32:20,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:32:20,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:32:20,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 00:32:20,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:32:20,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:32:20,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:32:20,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:32:20,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:32:20,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:32:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:32:20,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:32:20,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:32:20,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:32:20,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:32:20,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 00:32:20,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:32:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:32:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:32:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:32:20,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:32:21,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:32:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:32:21,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:32:21,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:32:21,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:32:21,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:32:21,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 00:32:21,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:32:21,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:32:21,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:32:21,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:32:21,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:32:21,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:32:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:32:21,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:32:21,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:32:21,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 00:32:21,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:32:21,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-27 00:32:21,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:32:21,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:32:21,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:32:21,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-27 00:32:21,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:32:21,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-27 00:32:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:32:21,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:32:21,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:32:21,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 00:32:21,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:32:21,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-27 00:32:21,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:32:21,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:32:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:32:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-27 00:32:21,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:32:21,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1075 [2020-10-27 00:32:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:32:21,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:32:21,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:32:21,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 00:32:21,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:32:21,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 00:32:21,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:32:21,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:32:21,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-27 00:32:21,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:32:21,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:32:21,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1200 [2020-10-27 00:32:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:32:21,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:32:21,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:32:21,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 00:32:21,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:32:21,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 00:32:21,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:32:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:32:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-27 00:32:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:32:21,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0