/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_label28.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:47:01,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:47:01,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:47:01,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:47:01,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:47:01,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:47:01,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:47:01,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:47:01,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:47:01,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:47:01,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:47:01,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:47:01,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:47:01,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:47:01,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:47:01,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:47:01,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:47:01,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:47:01,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:47:01,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:47:01,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:47:01,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:47:01,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:47:01,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:47:01,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:47:01,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:47:01,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:47:01,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:47:01,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:47:01,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:47:01,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:47:01,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:47:01,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:47:01,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:47:01,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:47:01,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:47:01,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:47:01,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:47:01,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:47:01,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:47:01,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:47:01,238 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 22:47:01,265 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:47:01,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:47:01,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:47:01,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:47:01,267 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:47:01,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:47:01,268 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:47:01,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:47:01,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:47:01,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:47:01,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:47:01,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:47:01,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:47:01,269 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:47:01,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:47:01,270 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:47:01,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:47:01,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:47:01,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:47:01,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:47:01,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:47:01,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:47:01,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:47:01,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:47:01,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:47:01,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:47:01,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:47:01,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:47:01,274 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:47:01,274 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 22:47:01,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:47:01,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:47:01,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:47:01,670 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:47:01,671 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:47:01,672 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label28.c [2020-10-14 22:47:01,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bff470c6d/a786dffec5aa4e9ea5b58882cdb718a3/FLAGfeb4af076 [2020-10-14 22:47:02,474 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:47:02,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label28.c [2020-10-14 22:47:02,498 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bff470c6d/a786dffec5aa4e9ea5b58882cdb718a3/FLAGfeb4af076 [2020-10-14 22:47:03,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bff470c6d/a786dffec5aa4e9ea5b58882cdb718a3 [2020-10-14 22:47:03,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:47:03,017 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:47:03,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:47:03,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:47:03,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:47:03,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:47:03" (1/1) ... [2020-10-14 22:47:03,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1be1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:03, skipping insertion in model container [2020-10-14 22:47:03,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:47:03" (1/1) ... [2020-10-14 22:47:03,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:47:03,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:47:04,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:47:04,621 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:47:05,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:47:05,072 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:47:05,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:05 WrapperNode [2020-10-14 22:47:05,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:47:05,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:47:05,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:47:05,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:47:05,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:05" (1/1) ... [2020-10-14 22:47:05,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:05" (1/1) ... [2020-10-14 22:47:05,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:05" (1/1) ... [2020-10-14 22:47:05,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:05" (1/1) ... [2020-10-14 22:47:05,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:05" (1/1) ... [2020-10-14 22:47:05,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:05" (1/1) ... [2020-10-14 22:47:05,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:05" (1/1) ... [2020-10-14 22:47:05,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:47:05,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:47:05,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:47:05,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:47:05,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:05" (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 22:47:05,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:47:05,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:47:05,447 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:47:05,447 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:47:05,447 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 22:47:05,447 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:47:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:47:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:47:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 22:47:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:47:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:47:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:47:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:47:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:47:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:47:11,809 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:47:11,810 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:47:11,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:47:11 BoogieIcfgContainer [2020-10-14 22:47:11,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:47:11,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:47:11,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:47:11,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:47:11,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:47:03" (1/3) ... [2020-10-14 22:47:11,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d67562b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:47:11, skipping insertion in model container [2020-10-14 22:47:11,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:47:05" (2/3) ... [2020-10-14 22:47:11,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d67562b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:47:11, skipping insertion in model container [2020-10-14 22:47:11,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:47:11" (3/3) ... [2020-10-14 22:47:11,832 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label28.c [2020-10-14 22:47:11,847 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:47:11,857 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:47:11,876 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:47:11,911 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:47:11,911 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:47:11,911 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:47:11,912 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:47:11,912 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:47:11,912 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:47:11,912 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:47:11,912 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:47:11,953 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 22:47:11,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 22:47:11,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:11,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:47:11,967 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:11,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:11,976 INFO L82 PathProgramCache]: Analyzing trace with hash -614102951, now seen corresponding path program 1 times [2020-10-14 22:47:11,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:11,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456494322] [2020-10-14 22:47:11,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:12,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:12,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:12,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 22:47:12,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:12,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 469 [2020-10-14 22:47:12,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:12,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:12,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:47:12,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:47:12,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 22:47:12,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:47:12,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:12,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:12,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:12,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:12,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:12,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:47:12,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:12,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:12,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:12,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:12,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:47:12,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:47:12,862 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 22:47:12,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1456494322] [2020-10-14 22:47:12,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:47:12,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 22:47:12,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135754036] [2020-10-14 22:47:12,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:47:12,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:47:12,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:47:12,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:47:12,896 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 5 states. [2020-10-14 22:47:23,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:47:23,704 INFO L93 Difference]: Finished difference Result 2984 states and 5769 transitions. [2020-10-14 22:47:23,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:47:23,706 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2020-10-14 22:47:23,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:47:23,743 INFO L225 Difference]: With dead ends: 2984 [2020-10-14 22:47:23,743 INFO L226 Difference]: Without dead ends: 2142 [2020-10-14 22:47:23,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:47:23,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2020-10-14 22:47:23,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2135. [2020-10-14 22:47:23,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2135 states. [2020-10-14 22:47:23,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 3571 transitions. [2020-10-14 22:47:23,938 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 3571 transitions. Word has length 70 [2020-10-14 22:47:23,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:47:23,942 INFO L479 AbstractCegarLoop]: Abstraction has 2135 states and 3571 transitions. [2020-10-14 22:47:23,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:47:23,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 3571 transitions. [2020-10-14 22:47:23,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-14 22:47:23,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:23,962 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:47:23,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:47:23,963 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:23,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:23,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1074039983, now seen corresponding path program 1 times [2020-10-14 22:47:23,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:23,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024955082] [2020-10-14 22:47:23,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:24,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:24,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:24,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:24,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-14 22:47:24,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:47:24,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 760 [2020-10-14 22:47:24,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:24,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:24,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:24,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:47:24,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 22:47:24,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:47:24,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:24,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:24,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:24,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:24,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:24,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:47:24,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:24,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:24,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:24,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:24,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:24,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:24,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:47:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:24,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:24,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:24,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:47:24,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:24,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 22:47:24,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:24,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:24,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:24,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:24,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 22:47:24,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:25,010 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 62 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:47:25,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024955082] [2020-10-14 22:47:25,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:47:25,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:47:25,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019861407] [2020-10-14 22:47:25,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:47:25,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:47:25,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:47:25,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:47:25,014 INFO L87 Difference]: Start difference. First operand 2135 states and 3571 transitions. Second operand 5 states. [2020-10-14 22:47:34,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:47:34,486 INFO L93 Difference]: Finished difference Result 6401 states and 10797 transitions. [2020-10-14 22:47:34,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:47:34,487 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-10-14 22:47:34,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:47:34,512 INFO L225 Difference]: With dead ends: 6401 [2020-10-14 22:47:34,512 INFO L226 Difference]: Without dead ends: 4272 [2020-10-14 22:47:34,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 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 22:47:34,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4272 states. [2020-10-14 22:47:34,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4272 to 4268. [2020-10-14 22:47:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4268 states. [2020-10-14 22:47:34,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4268 states to 4268 states and 6235 transitions. [2020-10-14 22:47:34,641 INFO L78 Accepts]: Start accepts. Automaton has 4268 states and 6235 transitions. Word has length 141 [2020-10-14 22:47:34,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:47:34,646 INFO L479 AbstractCegarLoop]: Abstraction has 4268 states and 6235 transitions. [2020-10-14 22:47:34,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:47:34,646 INFO L276 IsEmpty]: Start isEmpty. Operand 4268 states and 6235 transitions. [2020-10-14 22:47:34,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-14 22:47:34,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:34,658 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:47:34,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:47:34,658 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:34,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:34,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1034818675, now seen corresponding path program 1 times [2020-10-14 22:47:34,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:34,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315646558] [2020-10-14 22:47:34,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:34,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:35,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:35,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:35,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 22:47:35,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:47:35,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 918 [2020-10-14 22:47:35,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:35,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:47:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:47:35,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:47:35,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:35,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:35,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:35,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:35,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:35,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:35,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:47:35,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:35,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:47:35,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:35,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:47:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:35,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:35,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:35,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:47:35,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:35,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 22:47:35,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:35,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:35,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:35,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:47:35,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 22:47:35,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:35,961 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:47:35,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315646558] [2020-10-14 22:47:35,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:47:35,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:47:35,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169624900] [2020-10-14 22:47:35,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:47:35,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:47:35,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:47:35,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:47:35,966 INFO L87 Difference]: Start difference. First operand 4268 states and 6235 transitions. Second operand 7 states. [2020-10-14 22:47:44,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:47:44,675 INFO L93 Difference]: Finished difference Result 10119 states and 14979 transitions. [2020-10-14 22:47:44,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:47:44,676 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 159 [2020-10-14 22:47:44,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:47:44,731 INFO L225 Difference]: With dead ends: 10119 [2020-10-14 22:47:44,731 INFO L226 Difference]: Without dead ends: 5857 [2020-10-14 22:47:44,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:47:44,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5857 states. [2020-10-14 22:47:44,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5857 to 5762. [2020-10-14 22:47:44,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5762 states. [2020-10-14 22:47:45,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5762 states to 5762 states and 8094 transitions. [2020-10-14 22:47:45,005 INFO L78 Accepts]: Start accepts. Automaton has 5762 states and 8094 transitions. Word has length 159 [2020-10-14 22:47:45,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:47:45,007 INFO L479 AbstractCegarLoop]: Abstraction has 5762 states and 8094 transitions. [2020-10-14 22:47:45,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:47:45,008 INFO L276 IsEmpty]: Start isEmpty. Operand 5762 states and 8094 transitions. [2020-10-14 22:47:45,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-14 22:47:45,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:45,018 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:47:45,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:47:45,018 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:45,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:45,019 INFO L82 PathProgramCache]: Analyzing trace with hash -579319692, now seen corresponding path program 1 times [2020-10-14 22:47:45,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:45,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056355551] [2020-10-14 22:47:45,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:45,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:45,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:46,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:46,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:46,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-14 22:47:46,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:47:46,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1794 [2020-10-14 22:47:46,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:46,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:46,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:47:46,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:47:46,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-14 22:47:46,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:46,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:46,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:46,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:46,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:46,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:46,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:47:46,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:46,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:47:46,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:46,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:47:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:47,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:47,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:47,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-14 22:47:47,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:47,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-14 22:47:47,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:47,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:47,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:47,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:47:47,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-14 22:47:47,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:47,371 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:47:47,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056355551] [2020-10-14 22:47:47,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:47:47,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:47:47,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139148731] [2020-10-14 22:47:47,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:47:47,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:47:47,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:47:47,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:47:47,377 INFO L87 Difference]: Start difference. First operand 5762 states and 8094 transitions. Second operand 7 states. [2020-10-14 22:47:56,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:47:56,949 INFO L93 Difference]: Finished difference Result 16747 states and 24274 transitions. [2020-10-14 22:47:56,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:47:56,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 220 [2020-10-14 22:47:56,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:47:57,006 INFO L225 Difference]: With dead ends: 16747 [2020-10-14 22:47:57,007 INFO L226 Difference]: Without dead ends: 10991 [2020-10-14 22:47:57,021 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 22:47:57,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10991 states. [2020-10-14 22:47:57,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10991 to 8798. [2020-10-14 22:47:57,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8798 states. [2020-10-14 22:47:57,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8798 states to 8798 states and 11665 transitions. [2020-10-14 22:47:57,294 INFO L78 Accepts]: Start accepts. Automaton has 8798 states and 11665 transitions. Word has length 220 [2020-10-14 22:47:57,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:47:57,295 INFO L479 AbstractCegarLoop]: Abstraction has 8798 states and 11665 transitions. [2020-10-14 22:47:57,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:47:57,295 INFO L276 IsEmpty]: Start isEmpty. Operand 8798 states and 11665 transitions. [2020-10-14 22:47:57,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-14 22:47:57,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:57,301 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:47:57,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:47:57,302 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:57,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:57,302 INFO L82 PathProgramCache]: Analyzing trace with hash 920285210, now seen corresponding path program 1 times [2020-10-14 22:47:57,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:57,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444323915] [2020-10-14 22:47:57,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:57,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:57,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:58,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:59,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:59,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-14 22:47:59,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:47:59,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2368 [2020-10-14 22:47:59,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:59,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-14 22:47:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 22:47:59,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:47:59,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:59,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:59,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:59,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:59,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:59,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:47:59,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:59,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:59,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:59,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:59,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:59,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:59,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:47:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:59,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:59,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:59,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:47:59,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:59,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:47:59,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:59,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:59,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:59,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:59,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 22:47:59,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:47:59,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 22:47:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:59,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:00,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:00,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:48:00,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:00,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-14 22:48:00,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:00,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:00,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:00,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:00,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 22:48:00,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:00,214 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 212 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:48:00,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444323915] [2020-10-14 22:48:00,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:48:00,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:48:00,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597605156] [2020-10-14 22:48:00,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:48:00,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:48:00,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:48:00,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:48:00,217 INFO L87 Difference]: Start difference. First operand 8798 states and 11665 transitions. Second operand 7 states. [2020-10-14 22:48:11,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:48:11,493 INFO L93 Difference]: Finished difference Result 23089 states and 32035 transitions. [2020-10-14 22:48:11,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:48:11,494 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 249 [2020-10-14 22:48:11,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:48:11,559 INFO L225 Difference]: With dead ends: 23089 [2020-10-14 22:48:11,559 INFO L226 Difference]: Without dead ends: 14297 [2020-10-14 22:48:11,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 22:48:11,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14297 states. [2020-10-14 22:48:11,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14297 to 14091. [2020-10-14 22:48:11,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14091 states. [2020-10-14 22:48:11,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14091 states to 14091 states and 18767 transitions. [2020-10-14 22:48:11,955 INFO L78 Accepts]: Start accepts. Automaton has 14091 states and 18767 transitions. Word has length 249 [2020-10-14 22:48:11,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:48:11,955 INFO L479 AbstractCegarLoop]: Abstraction has 14091 states and 18767 transitions. [2020-10-14 22:48:11,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:48:11,955 INFO L276 IsEmpty]: Start isEmpty. Operand 14091 states and 18767 transitions. [2020-10-14 22:48:11,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-10-14 22:48:11,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:48:11,966 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:48:11,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:48:11,967 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:48:11,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:48:11,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1116911945, now seen corresponding path program 1 times [2020-10-14 22:48:11,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:48:11,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192761233] [2020-10-14 22:48:11,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:48:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:12,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:12,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:12,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:14,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:16,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:16,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:48:16,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:48:16,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4271 [2020-10-14 22:48:16,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:16,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:16,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:48:16,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:48:16,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 22:48:16,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:16,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:48:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:16,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:16,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:16,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:48:16,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:16,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:48:16,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:16,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:16,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:48:16,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:16,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:48:16,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:16,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:48:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:16,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:16,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:16,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:48:16,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:16,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 22:48:16,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:16,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:16,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:16,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:16,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:48:16,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:16,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 22:48:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:16,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:16,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:16,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 22:48:16,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:16,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:48:16,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:16,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 22:48:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:16,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:16,943 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 126 proven. 89 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 22:48:16,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192761233] [2020-10-14 22:48:16,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:48:16,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:48:16,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512788260] [2020-10-14 22:48:16,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:48:16,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:48:16,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:48:16,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:48:16,948 INFO L87 Difference]: Start difference. First operand 14091 states and 18767 transitions. Second operand 7 states. [2020-10-14 22:48:26,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:48:26,249 INFO L93 Difference]: Finished difference Result 29114 states and 38794 transitions. [2020-10-14 22:48:26,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:48:26,250 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 286 [2020-10-14 22:48:26,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:48:26,300 INFO L225 Difference]: With dead ends: 29114 [2020-10-14 22:48:26,300 INFO L226 Difference]: Without dead ends: 15029 [2020-10-14 22:48:26,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:48:26,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15029 states. [2020-10-14 22:48:26,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15029 to 14872. [2020-10-14 22:48:26,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14872 states. [2020-10-14 22:48:26,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14872 states to 14872 states and 19695 transitions. [2020-10-14 22:48:26,651 INFO L78 Accepts]: Start accepts. Automaton has 14872 states and 19695 transitions. Word has length 286 [2020-10-14 22:48:26,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:48:26,652 INFO L479 AbstractCegarLoop]: Abstraction has 14872 states and 19695 transitions. [2020-10-14 22:48:26,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:48:26,652 INFO L276 IsEmpty]: Start isEmpty. Operand 14872 states and 19695 transitions. [2020-10-14 22:48:26,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2020-10-14 22:48:26,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:48:26,662 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:48:26,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:48:26,663 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:48:26,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:48:26,663 INFO L82 PathProgramCache]: Analyzing trace with hash -21010903, now seen corresponding path program 1 times [2020-10-14 22:48:26,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:48:26,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938591844] [2020-10-14 22:48:26,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:48:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:26,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:26,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:27,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:28,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:30,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:31,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:31,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 435 [2020-10-14 22:48:31,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:48:31,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 22:48:31,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:31,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:48:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:48:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:48:31,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:31,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:48:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:31,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:31,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:31,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:48:31,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:31,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:48:31,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:31,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:31,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:48:31,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:31,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:48:31,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:31,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:48:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:31,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:32,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:32,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 22:48:32,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:32,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-14 22:48:32,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:32,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:32,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:32,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:32,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-14 22:48:32,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:32,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-14 22:48:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:32,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:32,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:32,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:48:32,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:32,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:48:32,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:32,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:32,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:32,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:32,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 22:48:32,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:32,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2020-10-14 22:48:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:32,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:32,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:32,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 22:48:32,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:32,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:48:32,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:32,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:32,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:32,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 22:48:32,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:32,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:32,699 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 194 proven. 221 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-14 22:48:32,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938591844] [2020-10-14 22:48:32,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:48:32,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:48:32,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117986324] [2020-10-14 22:48:32,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:48:32,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:48:32,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:48:32,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:48:32,703 INFO L87 Difference]: Start difference. First operand 14872 states and 19695 transitions. Second operand 8 states. [2020-10-14 22:48:43,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:48:43,027 INFO L93 Difference]: Finished difference Result 33587 states and 45160 transitions. [2020-10-14 22:48:43,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:48:43,030 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 421 [2020-10-14 22:48:43,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:48:43,105 INFO L225 Difference]: With dead ends: 33587 [2020-10-14 22:48:43,105 INFO L226 Difference]: Without dead ends: 19423 [2020-10-14 22:48:43,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:48:43,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19423 states. [2020-10-14 22:48:43,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19423 to 19258. [2020-10-14 22:48:43,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19258 states. [2020-10-14 22:48:43,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19258 states to 19258 states and 25084 transitions. [2020-10-14 22:48:43,540 INFO L78 Accepts]: Start accepts. Automaton has 19258 states and 25084 transitions. Word has length 421 [2020-10-14 22:48:43,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:48:43,541 INFO L479 AbstractCegarLoop]: Abstraction has 19258 states and 25084 transitions. [2020-10-14 22:48:43,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:48:43,542 INFO L276 IsEmpty]: Start isEmpty. Operand 19258 states and 25084 transitions. [2020-10-14 22:48:43,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2020-10-14 22:48:43,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:48:43,554 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 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] [2020-10-14 22:48:43,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:48:43,554 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:48:43,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:48:43,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1309638198, now seen corresponding path program 1 times [2020-10-14 22:48:43,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:48:43,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204468462] [2020-10-14 22:48:43,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:48:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:43,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:43,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:43,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:46,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:46,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:48,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:48,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 486 [2020-10-14 22:48:48,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:48:48,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 22:48:48,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:48,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:48,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:48,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:48:48,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 22:48:48,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:48,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:48:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:48,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:48,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:48,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:48:48,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:48,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:48:48,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:48,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:48,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:48,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:48,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:48,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:48,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:48:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:48,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:48,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:48,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 22:48:48,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:48,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 22:48:48,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:48,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:48,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:48:48,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:48,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 22:48:48,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:48,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-14 22:48:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:48,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:49,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:49,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:48:49,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:49,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 22:48:49,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:49,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:49,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:49,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:49,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:48:49,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:49,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-14 22:48:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:49,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:49,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:49,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 22:48:49,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:49,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:48:49,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:49,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:49,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:49,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 22:48:49,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:49,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:49,361 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 312 proven. 93 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-14 22:48:49,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204468462] [2020-10-14 22:48:49,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:48:49,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:48:49,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995698846] [2020-10-14 22:48:49,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:48:49,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:48:49,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:48:49,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:48:49,365 INFO L87 Difference]: Start difference. First operand 19258 states and 25084 transitions. Second operand 7 states. [2020-10-14 22:49:01,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:49:01,366 INFO L93 Difference]: Finished difference Result 43716 states and 57989 transitions. [2020-10-14 22:49:01,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:49:01,367 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 472 [2020-10-14 22:49:01,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:49:01,431 INFO L225 Difference]: With dead ends: 43716 [2020-10-14 22:49:01,432 INFO L226 Difference]: Without dead ends: 21935 [2020-10-14 22:49:01,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:49:01,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21935 states. [2020-10-14 22:49:01,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21935 to 21868. [2020-10-14 22:49:01,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21868 states. [2020-10-14 22:49:01,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21868 states to 21868 states and 25239 transitions. [2020-10-14 22:49:01,864 INFO L78 Accepts]: Start accepts. Automaton has 21868 states and 25239 transitions. Word has length 472 [2020-10-14 22:49:01,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:49:01,865 INFO L479 AbstractCegarLoop]: Abstraction has 21868 states and 25239 transitions. [2020-10-14 22:49:01,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:49:01,866 INFO L276 IsEmpty]: Start isEmpty. Operand 21868 states and 25239 transitions. [2020-10-14 22:49:01,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2020-10-14 22:49:01,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:49:01,892 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2020-10-14 22:49:01,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:49:01,893 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:49:01,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:49:01,894 INFO L82 PathProgramCache]: Analyzing trace with hash 148406259, now seen corresponding path program 1 times [2020-10-14 22:49:01,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:49:01,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046361128] [2020-10-14 22:49:01,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:49:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:02,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:02,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:02,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:06,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:07,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:07,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 593 [2020-10-14 22:49:07,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:49:07,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 22:49:07,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:07,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:07,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:49:07,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:49:07,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-14 22:49:07,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:07,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:49:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:07,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:07,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:07,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:49:07,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:07,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:49:07,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:07,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:07,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:07,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:07,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:49:07,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:07,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:49:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:07,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:07,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:07,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:49:07,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:07,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-10-14 22:49:07,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:07,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:07,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:49:07,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:07,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 22:49:07,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:08,394 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 20 [2020-10-14 22:49:08,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:08,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:08,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:08,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:49:08,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:08,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 22:49:08,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:08,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:08,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:49:08,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:08,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 22:49:08,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:09,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 22:49:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:09,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:09,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:09,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:49:09,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:09,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 22:49:09,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:09,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:09,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:09,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-14 22:49:09,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:09,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:09,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2020-10-14 22:49:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:09,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:09,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:09,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:49:09,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:09,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 22:49:09,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:09,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:09,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:09,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 22:49:09,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:09,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:10,759 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 189 proven. 190 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-14 22:49:10,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046361128] [2020-10-14 22:49:10,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:49:10,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 22:49:10,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107093665] [2020-10-14 22:49:10,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 22:49:10,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:49:10,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 22:49:10,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 22:49:10,763 INFO L87 Difference]: Start difference. First operand 21868 states and 25239 transitions. Second operand 9 states. [2020-10-14 22:49:20,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:49:20,207 INFO L93 Difference]: Finished difference Result 60335 states and 71670 transitions. [2020-10-14 22:49:20,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:49:20,209 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 577 [2020-10-14 22:49:20,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:49:20,452 INFO L225 Difference]: With dead ends: 60335 [2020-10-14 22:49:20,452 INFO L226 Difference]: Without dead ends: 39175 [2020-10-14 22:49:20,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:49:20,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39175 states. [2020-10-14 22:49:21,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39175 to 37707. [2020-10-14 22:49:21,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37707 states. [2020-10-14 22:49:21,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37707 states to 37707 states and 43995 transitions. [2020-10-14 22:49:21,108 INFO L78 Accepts]: Start accepts. Automaton has 37707 states and 43995 transitions. Word has length 577 [2020-10-14 22:49:21,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:49:21,108 INFO L479 AbstractCegarLoop]: Abstraction has 37707 states and 43995 transitions. [2020-10-14 22:49:21,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 22:49:21,109 INFO L276 IsEmpty]: Start isEmpty. Operand 37707 states and 43995 transitions. [2020-10-14 22:49:21,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1105 [2020-10-14 22:49:21,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:49:21,127 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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 22:49:21,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:49:21,127 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:49:21,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:49:21,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1102956805, now seen corresponding path program 1 times [2020-10-14 22:49:21,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:49:21,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480005971] [2020-10-14 22:49:21,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:49:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:21,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:21,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:21,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:26,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:26,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1126 [2020-10-14 22:49:26,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:49:26,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5212 [2020-10-14 22:49:26,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:26,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:26,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:26,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:49:26,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:49:26,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:26,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:49:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:26,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:26,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:26,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:49:26,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:26,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:49:26,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:26,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:26,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:26,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:26,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:26,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:26,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:49:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:26,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:26,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:26,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:49:26,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:26,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:49:26,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:26,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:26,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:26,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:26,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:26,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:26,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:26,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:26,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:26,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:49:26,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:26,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 22:49:26,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:26,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:26,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:26,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:26,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:26,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:26,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:49:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:27,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:27,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:27,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:49:27,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:27,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:49:27,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:27,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:27,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:27,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:27,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:27,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:27,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:49:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:27,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:27,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:27,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:49:27,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:27,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 22:49:27,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:27,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:27,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:27,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:27,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:49:27,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:27,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:27,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:27,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:27,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:49:27,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:27,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:49:27,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:27,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:27,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:27,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:27,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:49:27,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:27,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:49:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:27,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:27,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:27,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:49:27,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:27,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 22:49:27,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:27,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:27,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:27,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:27,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:49:27,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:27,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2020-10-14 22:49:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:27,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:27,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:27,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:49:27,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:27,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:49:27,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:27,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:27,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:27,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 22:49:27,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:27,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:28,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 484 proven. 88 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2020-10-14 22:49:28,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480005971] [2020-10-14 22:49:28,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:49:28,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:49:28,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42311005] [2020-10-14 22:49:28,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:49:28,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:49:28,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:49:28,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:49:28,226 INFO L87 Difference]: Start difference. First operand 37707 states and 43995 transitions. Second operand 7 states. [2020-10-14 22:49:38,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:49:38,807 INFO L93 Difference]: Finished difference Result 88388 states and 105412 transitions. [2020-10-14 22:49:38,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:49:38,808 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1104 [2020-10-14 22:49:38,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:49:38,960 INFO L225 Difference]: With dead ends: 88388 [2020-10-14 22:49:38,961 INFO L226 Difference]: Without dead ends: 52099 [2020-10-14 22:49:39,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 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 22:49:39,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52099 states. [2020-10-14 22:49:39,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52099 to 51319. [2020-10-14 22:49:39,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51319 states. [2020-10-14 22:49:39,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51319 states to 51319 states and 59673 transitions. [2020-10-14 22:49:39,895 INFO L78 Accepts]: Start accepts. Automaton has 51319 states and 59673 transitions. Word has length 1104 [2020-10-14 22:49:39,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:49:39,897 INFO L479 AbstractCegarLoop]: Abstraction has 51319 states and 59673 transitions. [2020-10-14 22:49:39,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:49:39,897 INFO L276 IsEmpty]: Start isEmpty. Operand 51319 states and 59673 transitions. [2020-10-14 22:49:39,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1112 [2020-10-14 22:49:39,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:49:39,916 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:39,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:49:39,917 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:49:39,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:49:39,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1499974495, now seen corresponding path program 1 times [2020-10-14 22:49:39,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:49:39,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670577489] [2020-10-14 22:49:39,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:49:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:40,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:40,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:42,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:45,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:45,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1133 [2020-10-14 22:49:45,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:49:45,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-14 22:49:45,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:45,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:45,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:45,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 856 [2020-10-14 22:49:45,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:49:45,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:45,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:49:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:45,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:45,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:45,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:49:45,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:45,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:49:45,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:45,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:45,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:45,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:49:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:45,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:45,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:45,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:49:45,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:45,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:49:45,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:45,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:45,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:45,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:45,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:45,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:45,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:45,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:45,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:45,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:49:45,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:45,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:49:45,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:45,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:45,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:45,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:45,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:45,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:45,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:49:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:45,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:45,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:45,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:49:45,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:45,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:49:45,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:45,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:45,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:45,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:45,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:45,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:49:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:46,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:46,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:46,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 22:49:46,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:46,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 22:49:46,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:46,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:46,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:46,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:46,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 308 [2020-10-14 22:49:46,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:46,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:46,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:46,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:46,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 22:49:46,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:46,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:49:46,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:46,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:46,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:46,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:46,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 22:49:46,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:46,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-14 22:49:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:46,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:46,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:46,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:49:46,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:46,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 22:49:46,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:46,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:46,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:46,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:46,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:49:46,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:46,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 960 [2020-10-14 22:49:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:46,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:46,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:46,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:49:46,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:46,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:49:46,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:46,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:46,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:46,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 22:49:46,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:46,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:47,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 484 proven. 88 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2020-10-14 22:49:47,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670577489] [2020-10-14 22:49:47,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:49:47,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:49:47,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184401254] [2020-10-14 22:49:47,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:49:47,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:49:47,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:49:47,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:49:47,064 INFO L87 Difference]: Start difference. First operand 51319 states and 59673 transitions. Second operand 7 states. [2020-10-14 22:49:56,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:49:56,025 INFO L93 Difference]: Finished difference Result 114021 states and 134213 transitions. [2020-10-14 22:49:56,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:49:56,026 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1111 [2020-10-14 22:49:56,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:49:56,225 INFO L225 Difference]: With dead ends: 114021 [2020-10-14 22:49:56,225 INFO L226 Difference]: Without dead ends: 64120 [2020-10-14 22:49:56,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 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 22:49:56,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64120 states. [2020-10-14 22:49:57,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64120 to 62651. [2020-10-14 22:49:57,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62651 states. [2020-10-14 22:49:57,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62651 states to 62651 states and 73004 transitions. [2020-10-14 22:49:57,389 INFO L78 Accepts]: Start accepts. Automaton has 62651 states and 73004 transitions. Word has length 1111 [2020-10-14 22:49:57,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:49:57,391 INFO L479 AbstractCegarLoop]: Abstraction has 62651 states and 73004 transitions. [2020-10-14 22:49:57,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:49:57,391 INFO L276 IsEmpty]: Start isEmpty. Operand 62651 states and 73004 transitions. [2020-10-14 22:49:57,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1248 [2020-10-14 22:49:57,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:49:57,424 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:49:57,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:49:57,424 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:49:57,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:49:57,425 INFO L82 PathProgramCache]: Analyzing trace with hash -619781385, now seen corresponding path program 1 times [2020-10-14 22:49:57,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:49:57,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630043047] [2020-10-14 22:49:57,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:49:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:59,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:59,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:02,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:02,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1271 [2020-10-14 22:50:02,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:50:02,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-14 22:50:02,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:02,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:02,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:02,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-14 22:50:02,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 22:50:02,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:02,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:50:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:02,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:02,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:02,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:50:02,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:02,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:50:02,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:02,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:02,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:02,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:02,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:02,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:02,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:50:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:02,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:03,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:03,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:50:03,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:03,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 22:50:03,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:03,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:03,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:03,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:03,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:03,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:03,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:03,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:03,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:03,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:50:03,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:03,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:50:03,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:03,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:03,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:03,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:50:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:03,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:03,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:03,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:50:03,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:03,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:50:03,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:03,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:03,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:03,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:50:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:03,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:03,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:03,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:50:03,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:03,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:50:03,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:03,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:03,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:03,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:03,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:03,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:03,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:03,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:03,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:03,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:50:03,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:03,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:50:03,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:03,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:03,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:03,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:03,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:03,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:03,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:50:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:03,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:03,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:03,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:50:03,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:03,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:50:03,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:03,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:03,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:03,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:03,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:03,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:03,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:50:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:03,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:03,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:03,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:50:03,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:03,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:50:03,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:03,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:03,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:03,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:03,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:50:03,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:03,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-14 22:50:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:03,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:03,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:03,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:50:03,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:03,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:50:03,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:03,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:03,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:03,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:50:03,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 22:50:03,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:04,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1597 backedges. 674 proven. 2 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2020-10-14 22:50:04,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630043047] [2020-10-14 22:50:04,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:50:04,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:50:04,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127244024] [2020-10-14 22:50:04,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:50:04,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:50:04,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:50:04,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:50:04,589 INFO L87 Difference]: Start difference. First operand 62651 states and 73004 transitions. Second operand 7 states. [2020-10-14 22:50:15,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:50:15,875 INFO L93 Difference]: Finished difference Result 140210 states and 165666 transitions. [2020-10-14 22:50:15,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:50:15,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1247 [2020-10-14 22:50:15,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:50:16,073 INFO L225 Difference]: With dead ends: 140210 [2020-10-14 22:50:16,073 INFO L226 Difference]: Without dead ends: 78267 [2020-10-14 22:50:16,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 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 22:50:16,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78267 states. [2020-10-14 22:50:17,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78267 to 74036. [2020-10-14 22:50:17,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74036 states. [2020-10-14 22:50:17,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74036 states to 74036 states and 86030 transitions. [2020-10-14 22:50:17,368 INFO L78 Accepts]: Start accepts. Automaton has 74036 states and 86030 transitions. Word has length 1247 [2020-10-14 22:50:17,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:50:17,370 INFO L479 AbstractCegarLoop]: Abstraction has 74036 states and 86030 transitions. [2020-10-14 22:50:17,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:50:17,371 INFO L276 IsEmpty]: Start isEmpty. Operand 74036 states and 86030 transitions. [2020-10-14 22:50:17,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1251 [2020-10-14 22:50:17,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:50:17,401 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:50:17,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:50:17,402 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:50:17,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:50:17,402 INFO L82 PathProgramCache]: Analyzing trace with hash -2001202889, now seen corresponding path program 1 times [2020-10-14 22:50:17,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:50:17,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833932312] [2020-10-14 22:50:17,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:50:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:17,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:17,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:19,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:20,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:22,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:22,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1276 [2020-10-14 22:50:22,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:50:22,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 22:50:22,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:22,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:22,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:22,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:50:22,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:50:22,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:22,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:50:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:22,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:22,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:22,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:50:22,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:22,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:50:22,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:22,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:22,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:22,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:22,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:22,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:22,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:50:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:22,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:22,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:22,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:50:22,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:22,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:50:22,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:22,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:22,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:22,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:22,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:22,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:22,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:22,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:22,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:22,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:50:22,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:22,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:50:22,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:22,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:22,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:22,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:22,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:50:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:22,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:22,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:22,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:50:22,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:22,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:50:22,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:22,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:22,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:22,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:22,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:22,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:23,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:50:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:23,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:23,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:23,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:50:23,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:23,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-14 22:50:23,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:23,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:23,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:23,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:23,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:50:23,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:23,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:23,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:23,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:23,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:50:23,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:23,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:50:23,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:23,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:23,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:23,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:23,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:50:23,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:23,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:50:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:23,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:23,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:23,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:50:23,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:23,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 22:50:23,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:23,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:23,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:23,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:50:23,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:50:23,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:23,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-14 22:50:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:23,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:23,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:23,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:50:23,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:23,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:50:23,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:23,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:23,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:23,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:50:23,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:23,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:23,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-14 22:50:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:23,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:23,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:23,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 22:50:23,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:23,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:50:23,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:23,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:23,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:23,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-14 22:50:23,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:23,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:23,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1099 [2020-10-14 22:50:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:23,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:23,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:23,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:50:23,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:23,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:50:23,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:23,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:23,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:23,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 22:50:23,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:23,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:25,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1858 backedges. 584 proven. 243 refuted. 0 times theorem prover too weak. 1031 trivial. 0 not checked. [2020-10-14 22:50:25,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833932312] [2020-10-14 22:50:25,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:50:25,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:50:25,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286602770] [2020-10-14 22:50:25,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:50:25,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:50:25,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:50:25,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:50:25,982 INFO L87 Difference]: Start difference. First operand 74036 states and 86030 transitions. Second operand 7 states. [2020-10-14 22:50:36,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:50:36,475 INFO L93 Difference]: Finished difference Result 155835 states and 182678 transitions. [2020-10-14 22:50:36,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:50:36,478 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1250 [2020-10-14 22:50:36,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:50:36,678 INFO L225 Difference]: With dead ends: 155835 [2020-10-14 22:50:36,678 INFO L226 Difference]: Without dead ends: 82515 [2020-10-14 22:50:36,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 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 22:50:36,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82515 states. [2020-10-14 22:50:38,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82515 to 80368. [2020-10-14 22:50:38,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80368 states. [2020-10-14 22:50:38,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80368 states to 80368 states and 93924 transitions. [2020-10-14 22:50:38,434 INFO L78 Accepts]: Start accepts. Automaton has 80368 states and 93924 transitions. Word has length 1250 [2020-10-14 22:50:38,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:50:38,435 INFO L479 AbstractCegarLoop]: Abstraction has 80368 states and 93924 transitions. [2020-10-14 22:50:38,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:50:38,435 INFO L276 IsEmpty]: Start isEmpty. Operand 80368 states and 93924 transitions. [2020-10-14 22:50:38,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1356 [2020-10-14 22:50:38,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:50:38,475 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:50:38,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:50:38,476 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:50:38,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:50:38,476 INFO L82 PathProgramCache]: Analyzing trace with hash 2003001864, now seen corresponding path program 1 times [2020-10-14 22:50:38,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:50:38,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031089369] [2020-10-14 22:50:38,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:50:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:38,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking...