/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:47:17,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:47:17,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:47:17,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:47:17,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:47:17,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:47:17,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:47:17,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:47:17,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:47:17,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:47:17,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:47:17,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:47:17,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:47:17,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:47:17,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:47:17,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:47:17,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:47:17,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:47:17,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:47:17,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:47:17,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:47:17,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:47:17,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:47:17,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:47:17,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:47:17,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:47:17,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:47:17,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:47:17,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:47:17,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:47:17,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:47:17,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:47:17,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:47:17,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:47:17,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:47:17,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:47:17,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:47:17,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:47:17,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:47:17,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:47:17,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:47:17,401 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 [2020-10-14 22:47:17,423 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:47:17,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:47:17,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:47:17,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:47:17,425 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:47:17,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:47:17,426 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:47:17,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:47:17,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:47:17,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:47:17,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:47:17,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:47:17,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:47:17,427 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:47:17,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:47:17,427 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:47:17,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:47:17,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:47:17,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:47:17,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:47:17,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:47:17,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:47:17,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:47:17,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:47:17,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:47:17,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:47:17,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:47:17,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:47:17,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:47:17,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:47:17,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:47:17,786 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:47:17,790 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:47:17,792 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:47:17,793 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:47:17,793 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label32.c [2020-10-14 22:47:17,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f2ecdf638/fa7a245906f74e57a6381b30ae1e6b92/FLAG5640a8194 [2020-10-14 22:47:18,611 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:47:18,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label32.c [2020-10-14 22:47:18,649 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f2ecdf638/fa7a245906f74e57a6381b30ae1e6b92/FLAG5640a8194 [2020-10-14 22:47:18,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f2ecdf638/fa7a245906f74e57a6381b30ae1e6b92 [2020-10-14 22:47:18,775 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:47:18,778 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:47:18,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:47:18,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:47:18,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:47:18,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:47:18" (1/1) ... [2020-10-14 22:47:18,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adf6174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:18, skipping insertion in model container [2020-10-14 22:47:18,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:47:18" (1/1) ... [2020-10-14 22:47:18,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:47:18,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:47:20,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:47:20,295 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:47:20,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:47:20,835 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:47:20,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:20 WrapperNode [2020-10-14 22:47:20,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:47:20,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:47:20,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:47:20,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:47:20,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:20" (1/1) ... [2020-10-14 22:47:20,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:20" (1/1) ... [2020-10-14 22:47:20,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:20" (1/1) ... [2020-10-14 22:47:20,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:20" (1/1) ... [2020-10-14 22:47:21,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:20" (1/1) ... [2020-10-14 22:47:21,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:20" (1/1) ... [2020-10-14 22:47:21,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:20" (1/1) ... [2020-10-14 22:47:21,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:47:21,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:47:21,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:47:21,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:47:21,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:20" (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 [2020-10-14 22:47:21,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:47:21,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:47:21,253 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:47:21,253 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:47:21,253 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 22:47:21,255 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:47:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:47:21,256 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:47:21,256 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 22:47:21,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:47:21,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:47:21,257 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:47:21,257 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:47:21,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:47:21,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:47:27,158 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:47:27,158 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:47:27,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:47:27 BoogieIcfgContainer [2020-10-14 22:47:27,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:47:27,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:47:27,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:47:27,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:47:27,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:47:18" (1/3) ... [2020-10-14 22:47:27,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc75251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:47:27, skipping insertion in model container [2020-10-14 22:47:27,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:20" (2/3) ... [2020-10-14 22:47:27,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc75251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:47:27, skipping insertion in model container [2020-10-14 22:47:27,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:47:27" (3/3) ... [2020-10-14 22:47:27,245 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label32.c [2020-10-14 22:47:27,258 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:47:27,269 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:47:27,283 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:47:27,309 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:47:27,309 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:47:27,309 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:47:27,310 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:47:27,310 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:47:27,310 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:47:27,310 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:47:27,310 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:47:27,345 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 22:47:27,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-14 22:47:27,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:27,353 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] [2020-10-14 22:47:27,354 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:27,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:27,360 INFO L82 PathProgramCache]: Analyzing trace with hash 255374729, now seen corresponding path program 1 times [2020-10-14 22:47:27,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:27,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451397408] [2020-10-14 22:47:27,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:27,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:27,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:27,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:47:27,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:27,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-10-14 22:47:27,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:27,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:27,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:47:27,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:47:27,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 22:47:27,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:47:27,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:28,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:28,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:28,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:28,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:28,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:47:28,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:28,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:28,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:28,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:28,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:47:28,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:47:28,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:47:28,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451397408] [2020-10-14 22:47:28,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:47:28,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:47:28,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867293661] [2020-10-14 22:47:28,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:47:28,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:47:28,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:47:28,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:47:28,089 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-14 22:47:35,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:47:35,305 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-14 22:47:35,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:47:35,306 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-14 22:47:35,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:47:35,336 INFO L225 Difference]: With dead ends: 2270 [2020-10-14 22:47:35,336 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 22:47:35,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:47:35,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 22:47:35,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-14 22:47:35,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-14 22:47:35,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2229 transitions. [2020-10-14 22:47:35,497 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2229 transitions. Word has length 34 [2020-10-14 22:47:35,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:47:35,498 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2229 transitions. [2020-10-14 22:47:35,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:47:35,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2229 transitions. [2020-10-14 22:47:35,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 22:47:35,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:35,504 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:47:35,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:47:35,504 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:35,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:35,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1818000124, now seen corresponding path program 1 times [2020-10-14 22:47:35,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:35,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660487030] [2020-10-14 22:47:35,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:35,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:35,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:36,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:36,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 22:47:36,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:47:36,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1037 [2020-10-14 22:47:36,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:36,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:36,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:47:36,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:47:36,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:47:36,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:47:36,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:36,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:36,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:36,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:36,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:36,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:47:36,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:36,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:36,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:36,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:36,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:47:36,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:36,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:47:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:36,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:36,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:36,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:47:36,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:36,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 22:47:36,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:36,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:36,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:36,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:47:36,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:47:36,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:36,903 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:47:36,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660487030] [2020-10-14 22:47:36,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:47:36,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:47:36,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218591324] [2020-10-14 22:47:36,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:47:36,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:47:36,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:47:36,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:47:36,909 INFO L87 Difference]: Start difference. First operand 1425 states and 2229 transitions. Second operand 7 states. [2020-10-14 22:47:50,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:47:50,031 INFO L93 Difference]: Finished difference Result 4352 states and 6838 transitions. [2020-10-14 22:47:50,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:47:50,032 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-14 22:47:50,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:47:50,049 INFO L225 Difference]: With dead ends: 4352 [2020-10-14 22:47:50,050 INFO L226 Difference]: Without dead ends: 2933 [2020-10-14 22:47:50,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:47:50,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2020-10-14 22:47:50,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2878. [2020-10-14 22:47:50,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2878 states. [2020-10-14 22:47:50,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 3876 transitions. [2020-10-14 22:47:50,150 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 3876 transitions. Word has length 104 [2020-10-14 22:47:50,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:47:50,151 INFO L479 AbstractCegarLoop]: Abstraction has 2878 states and 3876 transitions. [2020-10-14 22:47:50,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:47:50,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 3876 transitions. [2020-10-14 22:47:50,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-14 22:47:50,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:50,153 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:47:50,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:47:50,154 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:50,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:50,155 INFO L82 PathProgramCache]: Analyzing trace with hash -25299940, now seen corresponding path program 1 times [2020-10-14 22:47:50,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:50,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113034859] [2020-10-14 22:47:50,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:50,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:50,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:50,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:50,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 22:47:50,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:47:50,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 677 [2020-10-14 22:47:50,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:50,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:50,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:47:50,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:47:50,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:47:50,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:50,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:50,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:50,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:50,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:50,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:50,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:47:50,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:50,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:47:50,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:50,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:47:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:50,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:51,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:51,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:47:51,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:51,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 22:47:51,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:51,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:51,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:51,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:47:51,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:47:51,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:51,241 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:47:51,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113034859] [2020-10-14 22:47:51,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:47:51,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:47:51,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893668685] [2020-10-14 22:47:51,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:47:51,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:47:51,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:47:51,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:47:51,246 INFO L87 Difference]: Start difference. First operand 2878 states and 3876 transitions. Second operand 7 states. [2020-10-14 22:47:59,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:47:59,474 INFO L93 Difference]: Finished difference Result 7305 states and 9573 transitions. [2020-10-14 22:47:59,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:47:59,480 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 124 [2020-10-14 22:47:59,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:47:59,501 INFO L225 Difference]: With dead ends: 7305 [2020-10-14 22:47:59,501 INFO L226 Difference]: Without dead ends: 4433 [2020-10-14 22:47:59,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:47:59,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4433 states. [2020-10-14 22:47:59,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4433 to 4332. [2020-10-14 22:47:59,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4332 states. [2020-10-14 22:47:59,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 5419 transitions. [2020-10-14 22:47:59,637 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 5419 transitions. Word has length 124 [2020-10-14 22:47:59,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:47:59,638 INFO L479 AbstractCegarLoop]: Abstraction has 4332 states and 5419 transitions. [2020-10-14 22:47:59,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:47:59,638 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 5419 transitions. [2020-10-14 22:47:59,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 22:47:59,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:59,651 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:47:59,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:47:59,651 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:59,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:59,652 INFO L82 PathProgramCache]: Analyzing trace with hash 461176301, now seen corresponding path program 1 times [2020-10-14 22:47:59,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:59,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543619500] [2020-10-14 22:47:59,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:59,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:59,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:00,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:00,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 22:48:00,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:48:00,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1021 [2020-10-14 22:48:00,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:00,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:00,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:48:00,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:48:00,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 22:48:00,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-14 22:48:00,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:48:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:00,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:00,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:00,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:48:00,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:00,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:48:00,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:00,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:00,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:48:00,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:00,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:48:00,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:00,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:48:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:00,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:01,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:01,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:48:01,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:01,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-14 22:48:01,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:01,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:01,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:01,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:01,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 22:48:01,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:01,148 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:48:01,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543619500] [2020-10-14 22:48:01,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:48:01,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:48:01,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175298253] [2020-10-14 22:48:01,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:48:01,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:48:01,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:48:01,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:48:01,153 INFO L87 Difference]: Start difference. First operand 4332 states and 5419 transitions. Second operand 7 states. [2020-10-14 22:48:15,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:48:15,242 INFO L93 Difference]: Finished difference Result 11675 states and 15036 transitions. [2020-10-14 22:48:15,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:48:15,244 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2020-10-14 22:48:15,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:48:15,281 INFO L225 Difference]: With dead ends: 11675 [2020-10-14 22:48:15,281 INFO L226 Difference]: Without dead ends: 7349 [2020-10-14 22:48:15,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:48:15,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7349 states. [2020-10-14 22:48:15,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7349 to 5846. [2020-10-14 22:48:15,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5846 states. [2020-10-14 22:48:15,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 7183 transitions. [2020-10-14 22:48:15,450 INFO L78 Accepts]: Start accepts. Automaton has 5846 states and 7183 transitions. Word has length 131 [2020-10-14 22:48:15,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:48:15,454 INFO L479 AbstractCegarLoop]: Abstraction has 5846 states and 7183 transitions. [2020-10-14 22:48:15,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:48:15,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5846 states and 7183 transitions. [2020-10-14 22:48:15,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2020-10-14 22:48:15,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:48:15,463 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:48:15,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:48:15,464 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:48:15,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:48:15,464 INFO L82 PathProgramCache]: Analyzing trace with hash -200329494, now seen corresponding path program 1 times [2020-10-14 22:48:15,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:48:15,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938790447] [2020-10-14 22:48:15,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:48:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:15,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:15,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:15,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:20,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:20,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 445 [2020-10-14 22:48:20,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:48:20,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 22:48:20,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:20,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:20,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:48:20,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:48:20,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-14 22:48:20,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:20,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:48:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:20,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:20,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:20,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:48:20,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:20,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:48:20,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:20,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:48:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:48:20,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:20,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:48:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:20,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:21,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:21,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:48:21,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:21,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 644 [2020-10-14 22:48:21,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:21,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:21,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:48:21,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 22:48:21,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 22:48:21,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:48:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:21,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:21,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:21,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:48:21,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:21,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:48:21,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:21,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:21,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:48:21,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:21,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 22:48:21,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:21,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 22:48:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:21,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:21,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:21,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:48:21,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:21,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:48:21,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:21,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:21,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:21,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-14 22:48:21,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:21,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:22,015 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 54 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 22:48:22,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938790447] [2020-10-14 22:48:22,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:48:22,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:48:22,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642049821] [2020-10-14 22:48:22,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:48:22,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:48:22,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:48:22,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:48:22,018 INFO L87 Difference]: Start difference. First operand 5846 states and 7183 transitions. Second operand 7 states. [2020-10-14 22:48:36,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:48:36,589 INFO L93 Difference]: Finished difference Result 17079 states and 21536 transitions. [2020-10-14 22:48:36,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:48:36,589 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 431 [2020-10-14 22:48:36,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:48:36,637 INFO L225 Difference]: With dead ends: 17079 [2020-10-14 22:48:36,637 INFO L226 Difference]: Without dead ends: 11239 [2020-10-14 22:48:36,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:48:36,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11239 states. [2020-10-14 22:48:36,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11239 to 11141. [2020-10-14 22:48:36,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11141 states. [2020-10-14 22:48:36,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11141 states to 11141 states and 13615 transitions. [2020-10-14 22:48:36,906 INFO L78 Accepts]: Start accepts. Automaton has 11141 states and 13615 transitions. Word has length 431 [2020-10-14 22:48:36,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:48:36,907 INFO L479 AbstractCegarLoop]: Abstraction has 11141 states and 13615 transitions. [2020-10-14 22:48:36,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:48:36,907 INFO L276 IsEmpty]: Start isEmpty. Operand 11141 states and 13615 transitions. [2020-10-14 22:48:36,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2020-10-14 22:48:36,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:48:36,966 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, 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, 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] [2020-10-14 22:48:36,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:48:36,967 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:48:36,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:48:36,968 INFO L82 PathProgramCache]: Analyzing trace with hash 781912626, now seen corresponding path program 1 times [2020-10-14 22:48:36,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:48:36,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395796019] [2020-10-14 22:48:36,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:48:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:37,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:37,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:41,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:41,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 978 [2020-10-14 22:48:41,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:48:41,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4581 [2020-10-14 22:48:41,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:41,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:41,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:41,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:48:41,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:48:41,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:42,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:48:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:42,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:42,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:42,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:48:42,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:42,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:48:42,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:42,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:42,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:42,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:42,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:42,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:42,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:48:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:42,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:42,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:42,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:48:42,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:42,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 22:48:42,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:42,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:42,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:42,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:42,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:42,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:42,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:48:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:42,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:42,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:42,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:48:42,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:42,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:48:42,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:42,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:42,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:42,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:42,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:48:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:42,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:42,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:42,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:48:42,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:42,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:48:42,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:42,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:42,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:42,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:42,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:42,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:42,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:48:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:42,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:43,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:43,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:48:43,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:43,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-14 22:48:43,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:43,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:43,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:48:43,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:43,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:48:43,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:43,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:48:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:43,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:43,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:43,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:48:43,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:43,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:48:43,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:43,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:43,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:48:43,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:43,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:48:43,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:48:43,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:48:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:43,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:43,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:43,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:48:43,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:43,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:48:43,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:43,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:43,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:43,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:43,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:48:43,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:43,934 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 263 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-14 22:48:43,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395796019] [2020-10-14 22:48:43,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:48:43,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:48:43,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89406278] [2020-10-14 22:48:43,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:48:43,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:48:43,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:48:43,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:48:43,939 INFO L87 Difference]: Start difference. First operand 11141 states and 13615 transitions. Second operand 7 states. [2020-10-14 22:48:53,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:48:53,896 INFO L93 Difference]: Finished difference Result 27036 states and 34817 transitions. [2020-10-14 22:48:53,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:48:53,897 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 958 [2020-10-14 22:48:53,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:48:53,966 INFO L225 Difference]: With dead ends: 27036 [2020-10-14 22:48:53,966 INFO L226 Difference]: Without dead ends: 17329 [2020-10-14 22:48:53,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:48:54,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17329 states. [2020-10-14 22:48:54,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17329 to 17130. [2020-10-14 22:48:54,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17130 states. [2020-10-14 22:48:54,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17130 states to 17130 states and 21181 transitions. [2020-10-14 22:48:54,349 INFO L78 Accepts]: Start accepts. Automaton has 17130 states and 21181 transitions. Word has length 958 [2020-10-14 22:48:54,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:48:54,352 INFO L479 AbstractCegarLoop]: Abstraction has 17130 states and 21181 transitions. [2020-10-14 22:48:54,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:48:54,352 INFO L276 IsEmpty]: Start isEmpty. Operand 17130 states and 21181 transitions. [2020-10-14 22:48:54,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1056 [2020-10-14 22:48:54,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:48:54,405 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:48:54,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:48:54,405 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:48:54,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:48:54,406 INFO L82 PathProgramCache]: Analyzing trace with hash 544559468, now seen corresponding path program 1 times [2020-10-14 22:48:54,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:48:54,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511622281] [2020-10-14 22:48:54,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:48:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:54,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:55,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:55,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:59,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:59,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1077 [2020-10-14 22:48:59,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:48:59,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 22:48:59,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:59,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 930 [2020-10-14 22:48:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 22:48:59,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:59,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:48:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:59,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:59,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:59,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:48:59,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:59,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:48:59,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:59,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:59,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:59,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:59,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:59,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:59,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:48:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:59,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:00,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:00,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:49:00,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:00,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 22:49:00,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:00,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:00,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:00,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:00,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:00,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:00,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:00,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:00,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:49:00,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:00,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 22:49:00,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:00,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:00,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:00,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:00,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:00,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:00,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:49:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:00,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:00,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:00,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:49:00,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:00,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:49:00,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:00,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:00,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:00,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:49:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:00,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:00,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:00,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:49:00,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:00,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 22:49:00,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:00,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:00,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:00,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:00,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:00,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:00,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:00,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:00,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:00,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:49:00,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:00,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:49:00,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:00,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:00,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:00,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:00,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:00,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:00,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:49:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:00,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:00,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:00,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:49:00,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:00,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:49:00,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:00,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:49:00,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:00,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-14 22:49:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:00,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:00,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:00,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:49:00,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 22:49:00,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:00,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:00,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:00,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:00,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:49:00,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:01,634 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 407 proven. 2 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2020-10-14 22:49:01,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511622281] [2020-10-14 22:49:01,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:49:01,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:49:01,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743274133] [2020-10-14 22:49:01,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:49:01,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:49:01,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:49:01,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:49:01,638 INFO L87 Difference]: Start difference. First operand 17130 states and 21181 transitions. Second operand 8 states. [2020-10-14 22:49:16,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:49:16,863 INFO L93 Difference]: Finished difference Result 38083 states and 48992 transitions. [2020-10-14 22:49:16,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:49:16,865 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1055 [2020-10-14 22:49:16,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:49:16,940 INFO L225 Difference]: With dead ends: 38083 [2020-10-14 22:49:16,940 INFO L226 Difference]: Without dead ends: 22387 [2020-10-14 22:49:16,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:49:17,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22387 states. [2020-10-14 22:49:17,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22387 to 22278. [2020-10-14 22:49:17,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22278 states. [2020-10-14 22:49:17,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22278 states to 22278 states and 27227 transitions. [2020-10-14 22:49:17,416 INFO L78 Accepts]: Start accepts. Automaton has 22278 states and 27227 transitions. Word has length 1055 [2020-10-14 22:49:17,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:49:17,417 INFO L479 AbstractCegarLoop]: Abstraction has 22278 states and 27227 transitions. [2020-10-14 22:49:17,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:49:17,418 INFO L276 IsEmpty]: Start isEmpty. Operand 22278 states and 27227 transitions. [2020-10-14 22:49:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1071 [2020-10-14 22:49:17,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:49:17,437 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:49:17,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:49:17,437 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:49:17,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:49:17,438 INFO L82 PathProgramCache]: Analyzing trace with hash -815198983, now seen corresponding path program 1 times [2020-10-14 22:49:17,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:49:17,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560963707] [2020-10-14 22:49:17,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:49:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:17,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:18,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:19,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:22,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:22,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1092 [2020-10-14 22:49:22,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:49:22,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 22:49:22,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:22,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:22,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:22,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:49:22,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 22:49:22,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:22,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:49:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:22,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:22,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:22,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:49:22,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:22,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:49:22,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:22,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:22,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:22,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:22,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:22,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:22,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:49:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:22,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:22,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:22,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:49:22,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:22,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:49:22,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:22,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:22,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:22,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:22,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:22,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:22,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:23,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:23,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:23,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:49:23,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:23,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 22:49:23,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:23,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:23,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:23,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:49:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:23,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:23,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:23,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:49:23,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:23,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:49:23,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:23,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:23,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:23,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:23,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:23,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:23,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:49:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:23,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:23,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:23,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:49:23,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:23,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 22:49:23,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:23,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:23,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:23,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:23,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:49:23,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:23,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:23,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:23,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:23,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:49:23,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:23,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:49:23,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:23,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:23,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:23,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:23,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:49:23,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:23,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:49:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:23,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:23,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:23,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:49:23,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:23,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 22:49:23,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:23,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:23,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:23,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:23,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:49:23,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:23,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-14 22:49:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:23,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:23,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:23,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 22:49:23,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:23,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:49:23,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:23,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 22:49:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:23,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:24,502 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 362 proven. 79 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2020-10-14 22:49:24,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560963707] [2020-10-14 22:49:24,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:49:24,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:49:24,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441822060] [2020-10-14 22:49:24,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:49:24,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:49:24,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:49:24,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:49:24,505 INFO L87 Difference]: Start difference. First operand 22278 states and 27227 transitions. Second operand 7 states. [2020-10-14 22:49:42,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:49:42,087 INFO L93 Difference]: Finished difference Result 49005 states and 60577 transitions. [2020-10-14 22:49:42,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:49:42,089 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1070 [2020-10-14 22:49:42,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:49:42,184 INFO L225 Difference]: With dead ends: 49005 [2020-10-14 22:49:42,184 INFO L226 Difference]: Without dead ends: 28161 [2020-10-14 22:49:42,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:49:42,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28161 states. [2020-10-14 22:49:42,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28161 to 27344. [2020-10-14 22:49:42,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27344 states. [2020-10-14 22:49:42,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27344 states to 27344 states and 33167 transitions. [2020-10-14 22:49:42,779 INFO L78 Accepts]: Start accepts. Automaton has 27344 states and 33167 transitions. Word has length 1070 [2020-10-14 22:49:42,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:49:42,781 INFO L479 AbstractCegarLoop]: Abstraction has 27344 states and 33167 transitions. [2020-10-14 22:49:42,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:49:42,781 INFO L276 IsEmpty]: Start isEmpty. Operand 27344 states and 33167 transitions. [2020-10-14 22:49:42,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1147 [2020-10-14 22:49:42,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:49:42,805 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:49:42,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:49:42,806 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:49:42,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:49:42,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1037036040, now seen corresponding path program 1 times [2020-10-14 22:49:42,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:49:42,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953407257] [2020-10-14 22:49:42,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:49:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:43,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:43,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:43,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:47,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:48,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:48,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1170 [2020-10-14 22:49:48,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:49:48,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5106 [2020-10-14 22:49:48,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:48,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:48,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:48,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 930 [2020-10-14 22:49:48,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 22:49:48,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:48,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:49:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:48,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:48,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:48,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:49:48,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:48,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:49:48,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:48,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:48,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:48,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:48,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:48,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:48,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:49:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:48,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:48,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:48,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:49:48,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:48,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:49:48,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:48,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:48,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:48,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:48,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:48,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:48,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:48,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:48,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:49:48,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:48,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:49:48,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:48,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:48,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:48,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:48,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:48,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:48,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:49:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:48,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:48,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:48,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:49:48,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:48,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:49:48,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:48,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:48,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:48,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:49:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:48,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:48,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:48,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:49:48,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:48,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:49:48,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:48,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:48,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:48,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:48,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:48,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:48,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:48,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:48,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:48,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:49:48,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:48,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:49:48,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:48,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:48,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:48,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:48,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:49:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:48,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:48,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:48,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:49:48,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:48,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:49:48,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:48,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:48,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:48,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:48,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:49:48,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:48,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-14 22:49:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:48,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:48,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:48,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:49:48,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:48,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:49:48,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:48,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:48,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:48,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:48,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:49:48,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:49,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1040 [2020-10-14 22:49:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:49,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:49,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:49,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 22:49:49,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:49,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:49:49,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:49,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:49,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 22:49:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:49,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:49,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 468 proven. 79 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2020-10-14 22:49:49,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953407257] [2020-10-14 22:49:49,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:49:49,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:49:49,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226306092] [2020-10-14 22:49:49,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:49:49,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:49:49,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:49:49,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:49:49,840 INFO L87 Difference]: Start difference. First operand 27344 states and 33167 transitions. Second operand 7 states. [2020-10-14 22:50:01,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:50:01,881 INFO L93 Difference]: Finished difference Result 54808 states and 66871 transitions. [2020-10-14 22:50:01,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:50:01,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1146 [2020-10-14 22:50:01,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:50:01,962 INFO L225 Difference]: With dead ends: 54808 [2020-10-14 22:50:01,962 INFO L226 Difference]: Without dead ends: 28898 [2020-10-14 22:50:01,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:50:02,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28898 states. [2020-10-14 22:50:02,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28898 to 28774. [2020-10-14 22:50:02,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28774 states. [2020-10-14 22:50:02,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28774 states to 28774 states and 34768 transitions. [2020-10-14 22:50:02,461 INFO L78 Accepts]: Start accepts. Automaton has 28774 states and 34768 transitions. Word has length 1146 [2020-10-14 22:50:02,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:50:02,462 INFO L479 AbstractCegarLoop]: Abstraction has 28774 states and 34768 transitions. [2020-10-14 22:50:02,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:50:02,463 INFO L276 IsEmpty]: Start isEmpty. Operand 28774 states and 34768 transitions. [2020-10-14 22:50:02,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1178 [2020-10-14 22:50:02,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:50:02,488 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:50:02,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:50:02,489 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:50:02,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:50:02,490 INFO L82 PathProgramCache]: Analyzing trace with hash 787341447, now seen corresponding path program 1 times [2020-10-14 22:50:02,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:50:02,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800559326] [2020-10-14 22:50:02,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:50:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:02,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:03,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:03,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:07,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:07,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:07,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1201 [2020-10-14 22:50:07,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:50:07,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 22:50:07,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:07,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:50:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-14 22:50:07,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:07,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:50:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:07,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:07,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:07,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:50:07,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:07,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:50:07,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:07,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:07,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:07,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:07,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:07,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:07,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:50:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:07,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:07,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:07,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:50:07,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:07,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 22:50:07,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:07,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:07,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:07,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:07,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:07,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:08,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:08,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:08,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:08,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:50:08,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:08,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:50:08,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:08,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:08,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:08,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:08,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:08,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:08,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:50:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:08,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:08,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:08,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:50:08,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:08,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:50:08,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:08,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:08,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:08,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:08,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:08,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:08,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:50:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:08,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:08,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:08,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:50:08,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:08,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 22:50:08,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:08,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:08,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:08,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:08,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:50:08,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:08,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:08,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:08,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:08,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:50:08,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:08,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:50:08,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:08,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:08,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:08,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:08,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:50:08,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:09,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:50:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:09,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:09,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:09,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:50:09,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:09,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:50:09,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:09,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:09,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:09,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:50:09,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 22:50:09,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:09,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2020-10-14 22:50:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:09,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:09,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:09,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:50:09,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:09,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:50:09,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:09,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:09,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:09,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:50:09,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:09,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:09,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1055 [2020-10-14 22:50:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:09,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:09,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:09,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 22:50:09,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:09,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:50:09,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:09,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:09,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:09,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-14 22:50:09,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:09,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:10,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 437 proven. 163 refuted. 0 times theorem prover too weak. 698 trivial. 0 not checked. [2020-10-14 22:50:10,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800559326] [2020-10-14 22:50:10,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:50:10,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:50:10,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53060962] [2020-10-14 22:50:10,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:50:10,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:50:10,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:50:10,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:50:10,164 INFO L87 Difference]: Start difference. First operand 28774 states and 34768 transitions. Second operand 7 states. [2020-10-14 22:50:24,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:50:24,393 INFO L93 Difference]: Finished difference Result 67745 states and 84108 transitions. [2020-10-14 22:50:24,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:50:24,395 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1177 [2020-10-14 22:50:24,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:50:24,511 INFO L225 Difference]: With dead ends: 67745 [2020-10-14 22:50:24,511 INFO L226 Difference]: Without dead ends: 40405 [2020-10-14 22:50:24,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:50:24,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40405 states. [2020-10-14 22:50:25,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40405 to 38911. [2020-10-14 22:50:25,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38911 states. [2020-10-14 22:50:25,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38911 states to 38911 states and 46654 transitions. [2020-10-14 22:50:25,249 INFO L78 Accepts]: Start accepts. Automaton has 38911 states and 46654 transitions. Word has length 1177 [2020-10-14 22:50:25,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:50:25,250 INFO L479 AbstractCegarLoop]: Abstraction has 38911 states and 46654 transitions. [2020-10-14 22:50:25,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:50:25,250 INFO L276 IsEmpty]: Start isEmpty. Operand 38911 states and 46654 transitions. [2020-10-14 22:50:25,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1282 [2020-10-14 22:50:25,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:50:25,286 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:50:25,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:50:25,287 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:50:25,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:50:25,288 INFO L82 PathProgramCache]: Analyzing trace with hash 2112449990, now seen corresponding path program 1 times [2020-10-14 22:50:25,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:50:25,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164091234] [2020-10-14 22:50:25,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:50:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:25,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:26,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:26,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1303 [2020-10-14 22:50:26,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:26,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 952 [2020-10-14 22:50:26,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:26,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:26,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:26,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1269 [2020-10-14 22:50:26,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 22:50:26,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:26,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:50:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:26,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:26,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:26,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:50:26,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:26,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:50:26,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:26,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:26,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:26,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:26,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:26,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:26,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:50:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:26,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:26,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:26,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:50:26,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:26,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 22:50:26,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:26,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:26,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:26,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:26,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:26,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:26,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:26,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:26,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:26,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:50:26,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:26,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:50:26,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:26,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:26,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:26,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:26,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:26,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:26,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:50:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:26,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:26,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:26,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:50:26,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:26,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:50:26,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:26,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:26,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:26,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:27,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:50:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:27,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:27,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:27,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:50:27,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:27,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:50:27,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:27,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:27,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:27,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:27,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:27,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:27,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:27,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:27,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:27,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:50:27,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:27,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:50:27,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:27,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:27,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:27,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:27,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:27,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:27,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:50:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:27,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:27,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:27,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:50:27,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:27,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:50:27,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:27,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:27,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:27,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:27,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:50:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:27,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:27,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:27,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-14 22:50:27,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:27,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 22:50:27,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:27,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:27,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:50:27,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 113 proven. 4 refuted. 0 times theorem prover too weak. 1267 trivial. 0 not checked. [2020-10-14 22:50:28,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164091234] [2020-10-14 22:50:28,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:50:28,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:50:28,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602968865] [2020-10-14 22:50:28,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:50:28,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:50:28,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:50:28,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:50:28,246 INFO L87 Difference]: Start difference. First operand 38911 states and 46654 transitions. Second operand 5 states. [2020-10-14 22:50:41,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:50:41,152 INFO L93 Difference]: Finished difference Result 89185 states and 109211 transitions. [2020-10-14 22:50:41,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:50:41,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1281 [2020-10-14 22:50:41,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:50:41,309 INFO L225 Difference]: With dead ends: 89185 [2020-10-14 22:50:41,309 INFO L226 Difference]: Without dead ends: 51708 [2020-10-14 22:50:41,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:50:41,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51708 states. [2020-10-14 22:50:42,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51708 to 50982. [2020-10-14 22:50:42,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50982 states. [2020-10-14 22:50:42,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50982 states to 50982 states and 61017 transitions. [2020-10-14 22:50:42,162 INFO L78 Accepts]: Start accepts. Automaton has 50982 states and 61017 transitions. Word has length 1281 [2020-10-14 22:50:42,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:50:42,163 INFO L479 AbstractCegarLoop]: Abstraction has 50982 states and 61017 transitions. [2020-10-14 22:50:42,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:50:42,164 INFO L276 IsEmpty]: Start isEmpty. Operand 50982 states and 61017 transitions. [2020-10-14 22:50:42,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1289 [2020-10-14 22:50:42,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:50:42,191 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:50:42,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:50:42,192 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:50:42,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:50:42,192 INFO L82 PathProgramCache]: Analyzing trace with hash -748317317, now seen corresponding path program 1 times [2020-10-14 22:50:42,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:50:42,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515382011] [2020-10-14 22:50:42,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:50:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:42,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:42,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:44,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:45,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:45,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:47,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:47,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1314 [2020-10-14 22:50:47,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:50:47,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 22:50:47,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:47,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:47,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:50:47,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1121 [2020-10-14 22:50:47,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 22:50:47,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:47,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:50:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:47,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:47,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:47,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:50:47,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:47,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:50:47,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:47,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:47,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:47,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:50:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:47,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:47,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:47,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:50:47,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:47,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:50:47,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:47,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:47,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:47,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:47,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:47,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:47,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:47,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:50:47,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:47,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:50:47,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:47,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:47,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:47,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:50:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:47,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:47,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:47,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:50:47,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:47,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:50:47,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:47,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:47,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:47,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:47,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:47,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:49,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:50:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:49,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:49,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:49,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:50:49,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:49,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:50:49,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:49,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:49,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:49,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:49,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:49,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:49,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:49,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:49,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:49,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:50:49,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:49,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:50:49,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:49,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:49,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:49,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:50:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:49,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:49,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:49,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:50:49,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:49,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:50:49,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:49,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:49,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:49,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:50:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:49,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:49,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:49,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:50:49,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:49,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:50:49,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:49,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:50:49,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:49,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1107 [2020-10-14 22:50:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:49,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:49,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:49,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:49,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 22:50:49,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:50:49,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:50:49,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:49,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:49,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:49,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:49,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:50:49,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:49,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1188 [2020-10-14 22:50:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:49,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:49,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:49,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:50:49,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:49,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:50:49,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:49,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:49,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:49,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:50:49,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 22:50:49,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:50,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1815 backedges. 550 proven. 4 refuted. 0 times theorem prover too weak. 1261 trivial. 0 not checked. [2020-10-14 22:50:50,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [515382011] [2020-10-14 22:50:50,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:50:50,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:50:50,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074520689] [2020-10-14 22:50:50,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:50:50,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:50:50,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:50:50,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:50:50,139 INFO L87 Difference]: Start difference. First operand 50982 states and 61017 transitions. Second operand 8 states.