/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/Problem04_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 01:00:53,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 01:00:53,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 01:00:53,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 01:00:53,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 01:00:53,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 01:00:53,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 01:00:53,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 01:00:53,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 01:00:53,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 01:00:53,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 01:00:53,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 01:00:53,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 01:00:53,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 01:00:53,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 01:00:53,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 01:00:53,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 01:00:53,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 01:00:53,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 01:00:53,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 01:00:53,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 01:00:53,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 01:00:53,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 01:00:53,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 01:00:53,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 01:00:53,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 01:00:53,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 01:00:53,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 01:00:53,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 01:00:53,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 01:00:53,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 01:00:53,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 01:00:53,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 01:00:53,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 01:00:53,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 01:00:53,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 01:00:53,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 01:00:53,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 01:00:53,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 01:00:53,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 01:00:53,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 01:00:53,248 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 01:00:53,269 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 01:00:53,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 01:00:53,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 01:00:53,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 01:00:53,270 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 01:00:53,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 01:00:53,271 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 01:00:53,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 01:00:53,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 01:00:53,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 01:00:53,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 01:00:53,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 01:00:53,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 01:00:53,272 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 01:00:53,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 01:00:53,273 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 01:00:53,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 01:00:53,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 01:00:53,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 01:00:53,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 01:00:53,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 01:00:53,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 01:00:53,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 01:00:53,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 01:00:53,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 01:00:53,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 01:00:53,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 01:00:53,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 01:00:53,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 01:00:53,275 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 01:00:53,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 01:00:53,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 01:00:53,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 01:00:53,612 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 01:00:53,613 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 01:00:53,613 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label13.c [2020-10-14 01:00:53,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/150fad939/d2f43a568045419caaadd5b1a45726a3/FLAGd67ca7e7d [2020-10-14 01:00:54,337 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 01:00:54,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem04_label13.c [2020-10-14 01:00:54,365 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/150fad939/d2f43a568045419caaadd5b1a45726a3/FLAGd67ca7e7d [2020-10-14 01:00:54,453 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/150fad939/d2f43a568045419caaadd5b1a45726a3 [2020-10-14 01:00:54,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 01:00:54,463 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 01:00:54,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 01:00:54,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 01:00:54,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 01:00:54,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:00:54" (1/1) ... [2020-10-14 01:00:54,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61445f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:00:54, skipping insertion in model container [2020-10-14 01:00:54,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:00:54" (1/1) ... [2020-10-14 01:00:54,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 01:00:54,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 01:00:56,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:00:56,182 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 01:00:56,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:00:56,908 INFO L208 MainTranslator]: Completed translation [2020-10-14 01:00:56,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:00:56 WrapperNode [2020-10-14 01:00:56,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 01:00:56,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 01:00:56,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 01:00:56,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 01:00:56,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:00:56" (1/1) ... [2020-10-14 01:00:56,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:00:56" (1/1) ... [2020-10-14 01:00:56,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:00:56" (1/1) ... [2020-10-14 01:00:56,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:00:56" (1/1) ... [2020-10-14 01:00:57,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:00:56" (1/1) ... [2020-10-14 01:00:57,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:00:56" (1/1) ... [2020-10-14 01:00:57,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:00:56" (1/1) ... [2020-10-14 01:00:57,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 01:00:57,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 01:00:57,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 01:00:57,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 01:00:57,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:00:56" (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 01:00:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 01:00:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 01:00:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 01:00:57,255 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 01:00:57,255 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 01:00:57,256 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 01:00:57,256 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 01:00:57,257 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 01:00:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 01:00:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 01:00:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 01:00:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 01:00:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 01:00:57,259 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 01:00:57,259 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 01:00:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 01:00:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 01:01:01,814 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 01:01:01,815 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 01:01:01,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:01:01 BoogieIcfgContainer [2020-10-14 01:01:01,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 01:01:01,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 01:01:01,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 01:01:01,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 01:01:01,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:00:54" (1/3) ... [2020-10-14 01:01:01,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a5ea76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:01:01, skipping insertion in model container [2020-10-14 01:01:01,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:00:56" (2/3) ... [2020-10-14 01:01:01,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a5ea76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:01:01, skipping insertion in model container [2020-10-14 01:01:01,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:01:01" (3/3) ... [2020-10-14 01:01:01,840 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label13.c [2020-10-14 01:01:01,852 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 01:01:01,865 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 01:01:01,880 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 01:01:01,912 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 01:01:01,913 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 01:01:01,913 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 01:01:01,913 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 01:01:01,913 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 01:01:01,913 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 01:01:01,913 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 01:01:01,914 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 01:01:01,958 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2020-10-14 01:01:02,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2020-10-14 01:01:02,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:01:02,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:01:02,020 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:01:02,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:01:02,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1474624405, now seen corresponding path program 1 times [2020-10-14 01:01:02,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:01:02,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1683898806] [2020-10-14 01:01:02,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:01:02,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:01:02,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:01:07,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:01:07,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:01:07,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 804 [2020-10-14 01:01:07,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:01:07,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 01:01:07,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:01:07,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:01:07,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 01:01:07,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:01:07,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 798 [2020-10-14 01:01:07,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 01:01:08,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:01:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:01:08,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:01:08,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:01:08,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:01:08,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:01:08,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 01:01:08,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:01:08,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:01:08,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:01:08,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:01:08,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:01:08,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:01:09,649 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 01:01:09,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1683898806] [2020-10-14 01:01:09,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:01:09,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 01:01:09,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154986931] [2020-10-14 01:01:09,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 01:01:09,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:01:09,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 01:01:09,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 01:01:09,683 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 5 states. [2020-10-14 01:01:22,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:01:22,527 INFO L93 Difference]: Finished difference Result 3521 states and 6821 transitions. [2020-10-14 01:01:22,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 01:01:22,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 790 [2020-10-14 01:01:22,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:01:22,592 INFO L225 Difference]: With dead ends: 3521 [2020-10-14 01:01:22,593 INFO L226 Difference]: Without dead ends: 2547 [2020-10-14 01:01:22,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:01:22,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2020-10-14 01:01:22,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2543. [2020-10-14 01:01:22,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2543 states. [2020-10-14 01:01:22,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2543 states to 2543 states and 4215 transitions. [2020-10-14 01:01:22,788 INFO L78 Accepts]: Start accepts. Automaton has 2543 states and 4215 transitions. Word has length 790 [2020-10-14 01:01:22,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:01:22,791 INFO L479 AbstractCegarLoop]: Abstraction has 2543 states and 4215 transitions. [2020-10-14 01:01:22,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 01:01:22,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2543 states and 4215 transitions. [2020-10-14 01:01:22,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2020-10-14 01:01:22,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:01:22,819 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:01:22,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 01:01:22,820 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:01:22,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:01:22,821 INFO L82 PathProgramCache]: Analyzing trace with hash -948049476, now seen corresponding path program 1 times [2020-10-14 01:01:22,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:01:22,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751643843] [2020-10-14 01:01:22,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:01:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:01:23,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:01:24,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:01:25,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:01:28,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:01:28,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 825 [2020-10-14 01:01:28,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:01:28,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-10-14 01:01:28,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:01:28,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:01:28,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 01:01:28,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:01:28,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 819 [2020-10-14 01:01:28,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:01:29,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:01:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:01:29,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:01:29,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:01:29,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:01:29,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:01:29,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 01:01:29,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:01:29,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:01:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:01:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:01:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:01:29,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:01:29,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:01:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:01:29,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:01:29,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:01:29,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:01:29,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:01:29,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:01:29,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 01:01:29,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:01:29,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:01:29,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:01:29,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:01:29,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 01:01:29,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:01:30,201 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 01:01:30,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751643843] [2020-10-14 01:01:30,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:01:30,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 01:01:30,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701716948] [2020-10-14 01:01:30,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 01:01:30,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:01:30,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 01:01:30,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 01:01:30,207 INFO L87 Difference]: Start difference. First operand 2543 states and 4215 transitions. Second operand 5 states. [2020-10-14 01:01:38,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:01:38,701 INFO L93 Difference]: Finished difference Result 7621 states and 12762 transitions. [2020-10-14 01:01:38,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 01:01:38,704 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 809 [2020-10-14 01:01:38,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:01:38,731 INFO L225 Difference]: With dead ends: 7621 [2020-10-14 01:01:38,731 INFO L226 Difference]: Without dead ends: 5084 [2020-10-14 01:01:38,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 01:01:38,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5084 states. [2020-10-14 01:01:38,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5084 to 5080. [2020-10-14 01:01:38,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5080 states. [2020-10-14 01:01:38,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 8118 transitions. [2020-10-14 01:01:38,869 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 8118 transitions. Word has length 809 [2020-10-14 01:01:38,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:01:38,871 INFO L479 AbstractCegarLoop]: Abstraction has 5080 states and 8118 transitions. [2020-10-14 01:01:38,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 01:01:38,872 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 8118 transitions. [2020-10-14 01:01:38,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2020-10-14 01:01:38,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:01:38,907 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:01:38,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 01:01:38,907 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:01:38,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:01:38,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1208674296, now seen corresponding path program 1 times [2020-10-14 01:01:38,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:01:38,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [223201405] [2020-10-14 01:01:38,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:01:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:01:38,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:01:39,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:01:44,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:01:44,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 827 [2020-10-14 01:01:44,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:01:44,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-14 01:01:44,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:01:44,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:01:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:01:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:01:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 01:01:44,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:01:44,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:01:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:01:44,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:01:44,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:01:44,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:01:44,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:01:44,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:01:44,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:01:44,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:01:44,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:01:44,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:01:44,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:01:44,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:01:44,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:01:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:01:44,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:01:44,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:01:44,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 01:01:44,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:01:44,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 01:01:44,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:01:44,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:01:44,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:01:44,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:01:44,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 01:01:44,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:01:44,524 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:01:44,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [223201405] [2020-10-14 01:01:44,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:01:44,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:01:44,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547329638] [2020-10-14 01:01:44,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:01:44,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:01:44,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:01:44,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:01:44,528 INFO L87 Difference]: Start difference. First operand 5080 states and 8118 transitions. Second operand 7 states. [2020-10-14 01:01:54,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:01:54,840 INFO L93 Difference]: Finished difference Result 15494 states and 25423 transitions. [2020-10-14 01:01:54,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:01:54,846 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 811 [2020-10-14 01:01:54,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:01:54,894 INFO L225 Difference]: With dead ends: 15494 [2020-10-14 01:01:54,894 INFO L226 Difference]: Without dead ends: 10420 [2020-10-14 01:01:54,907 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 01:01:54,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10420 states. [2020-10-14 01:01:55,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10420 to 10319. [2020-10-14 01:01:55,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10319 states. [2020-10-14 01:01:55,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10319 states to 10319 states and 15019 transitions. [2020-10-14 01:01:55,196 INFO L78 Accepts]: Start accepts. Automaton has 10319 states and 15019 transitions. Word has length 811 [2020-10-14 01:01:55,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:01:55,201 INFO L479 AbstractCegarLoop]: Abstraction has 10319 states and 15019 transitions. [2020-10-14 01:01:55,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:01:55,201 INFO L276 IsEmpty]: Start isEmpty. Operand 10319 states and 15019 transitions. [2020-10-14 01:01:55,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 846 [2020-10-14 01:01:55,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:01:55,250 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:01:55,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 01:01:55,250 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:01:55,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:01:55,251 INFO L82 PathProgramCache]: Analyzing trace with hash -580566640, now seen corresponding path program 1 times [2020-10-14 01:01:55,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:01:55,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511992154] [2020-10-14 01:01:55,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:01:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:01:55,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:01:55,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:01:55,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:00,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:00,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:02:00,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 865 [2020-10-14 01:02:00,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:02:00,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 01:02:00,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:02:00,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:02:00,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:02:00,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-14 01:02:00,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 01:02:00,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:02:00,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:02:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:02:00,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:00,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:02:00,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:02:00,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:02:00,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:02:00,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:02:00,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:02:00,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:02:00,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:02:00,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:02:00,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:02:00,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:02:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:02:00,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:00,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:02:00,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:02:00,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:02:00,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 01:02:00,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:02:00,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:02:00,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:02:00,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:02:00,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:02:00,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:02:00,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:02:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:02:00,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:00,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:02:00,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 01:02:00,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:02:00,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 01:02:00,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:02:00,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:02:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:02:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:02:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 01:02:00,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:02:00,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 01:02:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:02:00,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:00,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:02:00,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 01:02:00,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:02:00,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 01:02:00,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:02:00,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:02:00,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:02:00,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:02:00,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 01:02:00,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:02:00,935 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 01:02:00,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511992154] [2020-10-14 01:02:00,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:02:00,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:02:00,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593378508] [2020-10-14 01:02:00,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:02:00,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:02:00,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:02:00,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:02:00,938 INFO L87 Difference]: Start difference. First operand 10319 states and 15019 transitions. Second operand 7 states. [2020-10-14 01:02:15,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:02:15,026 INFO L93 Difference]: Finished difference Result 30022 states and 44761 transitions. [2020-10-14 01:02:15,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 01:02:15,027 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 845 [2020-10-14 01:02:15,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:02:15,104 INFO L225 Difference]: With dead ends: 30022 [2020-10-14 01:02:15,104 INFO L226 Difference]: Without dead ends: 19709 [2020-10-14 01:02:15,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:02:15,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19709 states. [2020-10-14 01:02:15,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19709 to 19709. [2020-10-14 01:02:15,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19709 states. [2020-10-14 01:02:15,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19709 states to 19709 states and 27293 transitions. [2020-10-14 01:02:15,579 INFO L78 Accepts]: Start accepts. Automaton has 19709 states and 27293 transitions. Word has length 845 [2020-10-14 01:02:15,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:02:15,579 INFO L479 AbstractCegarLoop]: Abstraction has 19709 states and 27293 transitions. [2020-10-14 01:02:15,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:02:15,580 INFO L276 IsEmpty]: Start isEmpty. Operand 19709 states and 27293 transitions. [2020-10-14 01:02:15,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 902 [2020-10-14 01:02:15,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:02:15,639 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:15,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 01:02:15,640 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:02:15,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:02:15,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1524684932, now seen corresponding path program 1 times [2020-10-14 01:02:15,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:02:15,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104375407] [2020-10-14 01:02:15,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:02:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:02:15,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:16,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:20,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:02:20,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 917 [2020-10-14 01:02:20,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:02:20,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 01:02:20,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:02:20,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:02:20,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:02:20,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:02:20,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 01:02:20,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:02:20,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:02:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:02:20,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:20,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:02:20,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:02:20,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:02:20,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 01:02:20,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:02:20,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:02:20,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:02:20,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:02:20,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:02:20,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:02:20,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:02:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:02:20,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:21,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:02:21,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 01:02:21,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:02:21,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 01:02:21,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:02:21,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:02:21,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:02:21,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:02:21,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 01:02:21,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:02:21,461 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:02:21,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104375407] [2020-10-14 01:02:21,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:02:21,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:02:21,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086412439] [2020-10-14 01:02:21,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:02:21,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:02:21,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:02:21,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:02:21,463 INFO L87 Difference]: Start difference. First operand 19709 states and 27293 transitions. Second operand 7 states. [2020-10-14 01:02:31,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:02:31,265 INFO L93 Difference]: Finished difference Result 57277 states and 81409 transitions. [2020-10-14 01:02:31,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 01:02:31,266 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 901 [2020-10-14 01:02:31,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:02:31,395 INFO L225 Difference]: With dead ends: 57277 [2020-10-14 01:02:31,396 INFO L226 Difference]: Without dead ends: 37578 [2020-10-14 01:02:31,449 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 01:02:31,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37578 states. [2020-10-14 01:02:32,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37578 to 32487. [2020-10-14 01:02:32,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32487 states. [2020-10-14 01:02:32,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32487 states to 32487 states and 43220 transitions. [2020-10-14 01:02:32,144 INFO L78 Accepts]: Start accepts. Automaton has 32487 states and 43220 transitions. Word has length 901 [2020-10-14 01:02:32,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:02:32,145 INFO L479 AbstractCegarLoop]: Abstraction has 32487 states and 43220 transitions. [2020-10-14 01:02:32,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:02:32,146 INFO L276 IsEmpty]: Start isEmpty. Operand 32487 states and 43220 transitions. [2020-10-14 01:02:32,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2020-10-14 01:02:32,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:02:32,245 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:32,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 01:02:32,246 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:02:32,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:02:32,246 INFO L82 PathProgramCache]: Analyzing trace with hash -2112055116, now seen corresponding path program 1 times [2020-10-14 01:02:32,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:02:32,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934758867] [2020-10-14 01:02:32,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:02:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:02:32,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:32,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:32,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:37,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:02:37,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 988 [2020-10-14 01:02:37,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:02:37,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 01:02:37,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:02:37,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:02:37,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:02:37,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 01:02:37,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 01:02:37,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:02:37,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:02:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:02:37,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:37,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:02:37,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:02:37,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:02:37,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:02:37,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:02:37,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:02:37,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:02:37,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:02:37,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:02:37,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:02:37,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:02:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:02:37,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:37,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:02:37,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 01:02:37,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:02:37,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:02:37,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:02:37,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:02:37,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:02:37,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:02:37,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:02:37,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:02:37,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 01:02:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:02:37,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:37,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:02:37,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 01:02:37,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:02:37,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 01:02:37,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:02:37,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:02:37,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:02:37,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:02:37,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 01:02:37,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:02:37,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 01:02:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:02:37,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:37,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:02:37,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 01:02:37,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:02:37,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 01:02:37,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:02:37,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:02:37,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:02:37,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:02:37,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 01:02:37,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:02:38,249 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 235 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 01:02:38,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934758867] [2020-10-14 01:02:38,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:02:38,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:02:38,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122830029] [2020-10-14 01:02:38,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:02:38,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:02:38,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:02:38,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:02:38,252 INFO L87 Difference]: Start difference. First operand 32487 states and 43220 transitions. Second operand 7 states. [2020-10-14 01:02:53,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:02:53,800 INFO L93 Difference]: Finished difference Result 77219 states and 103942 transitions. [2020-10-14 01:02:53,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:02:53,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 968 [2020-10-14 01:02:53,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:02:53,932 INFO L225 Difference]: With dead ends: 77219 [2020-10-14 01:02:53,932 INFO L226 Difference]: Without dead ends: 42202 [2020-10-14 01:02:53,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 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 01:02:54,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42202 states. [2020-10-14 01:02:54,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42202 to 38757. [2020-10-14 01:02:54,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38757 states. [2020-10-14 01:02:54,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38757 states to 38757 states and 47521 transitions. [2020-10-14 01:02:54,674 INFO L78 Accepts]: Start accepts. Automaton has 38757 states and 47521 transitions. Word has length 968 [2020-10-14 01:02:54,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:02:54,675 INFO L479 AbstractCegarLoop]: Abstraction has 38757 states and 47521 transitions. [2020-10-14 01:02:54,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:02:54,676 INFO L276 IsEmpty]: Start isEmpty. Operand 38757 states and 47521 transitions. [2020-10-14 01:02:54,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1084 [2020-10-14 01:02:54,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:02:54,853 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:54,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 01:02:54,853 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:02:54,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:02:54,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1292364535, now seen corresponding path program 1 times [2020-10-14 01:02:54,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:02:54,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144133325] [2020-10-14 01:02:54,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:02:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:02:55,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:55,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:55,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:02:56,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:00,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:00,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1101 [2020-10-14 01:03:00,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:03:00,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5175 [2020-10-14 01:03:00,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:00,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:00,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:03:00,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 01:03:00,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 01:03:00,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:03:00,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:03:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:00,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:00,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:00,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:03:00,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:03:00,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:03:00,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:00,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:03:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:03:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:03:00,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:03:00,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:03:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:00,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:00,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:00,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 01:03:00,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:03:00,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 01:03:00,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:00,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:03:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:03:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 01:03:00,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:03:00,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 01:03:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:00,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:00,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:00,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 01:03:00,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:03:00,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 01:03:00,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:00,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:00,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:03:00,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:03:00,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-14 01:03:00,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:03:01,356 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 409 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 01:03:01,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144133325] [2020-10-14 01:03:01,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:03:01,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:03:01,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249887324] [2020-10-14 01:03:01,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:03:01,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:03:01,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:03:01,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:03:01,359 INFO L87 Difference]: Start difference. First operand 38757 states and 47521 transitions. Second operand 7 states. [2020-10-14 01:03:11,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:03:11,087 INFO L93 Difference]: Finished difference Result 79097 states and 98255 transitions. [2020-10-14 01:03:11,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 01:03:11,087 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1083 [2020-10-14 01:03:11,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:03:11,213 INFO L225 Difference]: With dead ends: 79097 [2020-10-14 01:03:11,214 INFO L226 Difference]: Without dead ends: 42070 [2020-10-14 01:03:11,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 01:03:11,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42070 states. [2020-10-14 01:03:11,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42070 to 41947. [2020-10-14 01:03:11,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41947 states. [2020-10-14 01:03:11,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41947 states to 41947 states and 49883 transitions. [2020-10-14 01:03:11,995 INFO L78 Accepts]: Start accepts. Automaton has 41947 states and 49883 transitions. Word has length 1083 [2020-10-14 01:03:11,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:03:11,996 INFO L479 AbstractCegarLoop]: Abstraction has 41947 states and 49883 transitions. [2020-10-14 01:03:11,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:03:11,997 INFO L276 IsEmpty]: Start isEmpty. Operand 41947 states and 49883 transitions. [2020-10-14 01:03:12,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1144 [2020-10-14 01:03:12,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:03:12,053 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:03:12,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 01:03:12,054 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:03:12,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:03:12,054 INFO L82 PathProgramCache]: Analyzing trace with hash 805933084, now seen corresponding path program 1 times [2020-10-14 01:03:12,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:03:12,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159438750] [2020-10-14 01:03:12,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:03:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:12,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:12,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:12,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:13,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:17,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:17,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1167 [2020-10-14 01:03:17,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:03:17,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5123 [2020-10-14 01:03:17,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:17,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:03:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-14 01:03:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-14 01:03:17,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:03:17,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:03:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:17,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:17,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:17,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:03:17,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:03:17,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:03:17,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:17,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:17,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:03:17,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:03:17,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:03:17,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:03:17,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:03:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:17,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:17,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:17,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:03:17,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:03:17,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 01:03:17,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:17,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:17,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:03:17,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:03:17,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:03:17,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:03:17,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:03:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:17,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:17,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:17,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 01:03:17,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:03:17,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 01:03:17,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:17,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:17,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:03:17,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:03:17,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:03:17,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:03:17,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 01:03:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:17,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:17,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:17,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 01:03:17,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:03:17,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 01:03:17,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:17,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:03:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:03:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 01:03:17,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:03:17,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-14 01:03:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:17,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:17,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:17,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-14 01:03:17,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:03:17,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 01:03:17,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:17,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:17,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:03:17,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:03:17,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-14 01:03:17,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:03:17,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2020-10-14 01:03:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:17,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:17,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:17,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 01:03:17,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:03:17,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 01:03:17,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:17,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:17,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:03:17,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-14 01:03:17,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:03:17,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:03:18,799 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 475 proven. 52 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2020-10-14 01:03:18,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159438750] [2020-10-14 01:03:18,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:03:18,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:03:18,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167651433] [2020-10-14 01:03:18,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:03:18,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:03:18,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:03:18,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:03:18,801 INFO L87 Difference]: Start difference. First operand 41947 states and 49883 transitions. Second operand 7 states. [2020-10-14 01:03:34,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:03:34,118 INFO L93 Difference]: Finished difference Result 105029 states and 129597 transitions. [2020-10-14 01:03:34,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 01:03:34,119 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1143 [2020-10-14 01:03:34,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:03:34,306 INFO L225 Difference]: With dead ends: 105029 [2020-10-14 01:03:34,306 INFO L226 Difference]: Without dead ends: 63092 [2020-10-14 01:03:34,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:03:34,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63092 states. [2020-10-14 01:03:35,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63092 to 60158. [2020-10-14 01:03:35,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60158 states. [2020-10-14 01:03:35,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60158 states to 60158 states and 71149 transitions. [2020-10-14 01:03:35,392 INFO L78 Accepts]: Start accepts. Automaton has 60158 states and 71149 transitions. Word has length 1143 [2020-10-14 01:03:35,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:03:35,393 INFO L479 AbstractCegarLoop]: Abstraction has 60158 states and 71149 transitions. [2020-10-14 01:03:35,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:03:35,393 INFO L276 IsEmpty]: Start isEmpty. Operand 60158 states and 71149 transitions. [2020-10-14 01:03:35,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1373 [2020-10-14 01:03:35,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:03:35,503 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:03:35,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 01:03:35,504 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:03:35,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:03:35,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1298525449, now seen corresponding path program 1 times [2020-10-14 01:03:35,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:03:35,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794537021] [2020-10-14 01:03:35,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:03:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:35,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:35,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:36,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:36,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:40,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:40,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1396 [2020-10-14 01:03:40,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:03:40,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-10-14 01:03:40,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:40,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:40,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:03:40,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 364 [2020-10-14 01:03:40,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 01:03:40,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:03:41,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:03:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:41,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:41,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:41,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:03:41,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:03:41,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:03:41,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:41,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:41,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:03:41,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:03:41,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:03:41,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:03:41,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:03:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:41,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:41,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:41,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:03:41,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:03:41,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:03:41,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:41,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:41,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:03:41,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:03:41,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:03:41,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:03:41,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:03:41,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:41,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:41,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:41,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-14 01:03:41,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:03:41,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-14 01:03:41,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:41,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:41,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:03:41,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:03:41,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 328 [2020-10-14 01:03:41,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:03:41,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 01:03:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:41,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:41,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:41,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 01:03:41,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:03:41,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 01:03:41,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:41,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:41,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:03:41,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:03:41,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 01:03:41,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:03:41,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2020-10-14 01:03:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:41,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:41,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:41,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-14 01:03:41,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:03:41,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-14 01:03:41,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:41,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:41,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:03:41,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:03:41,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-14 01:03:41,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:03:41,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2020-10-14 01:03:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:03:41,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:03:41,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:03:41,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 01:03:41,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:03:41,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 01:03:41,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:03:41,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:03:41,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:03:41,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-14 01:03:41,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:03:41,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:03:43,273 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 769 proven. 52 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-14 01:03:43,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794537021] [2020-10-14 01:03:43,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:03:43,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:03:43,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763233109] [2020-10-14 01:03:43,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:03:43,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:03:43,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:03:43,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:03:43,277 INFO L87 Difference]: Start difference. First operand 60158 states and 71149 transitions. Second operand 7 states. [2020-10-14 01:04:00,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:04:00,179 INFO L93 Difference]: Finished difference Result 143861 states and 174516 transitions. [2020-10-14 01:04:00,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:04:00,180 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1372 [2020-10-14 01:04:00,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:04:00,431 INFO L225 Difference]: With dead ends: 143861 [2020-10-14 01:04:00,431 INFO L226 Difference]: Without dead ends: 87197 [2020-10-14 01:04:00,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:04:00,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87197 states. [2020-10-14 01:04:01,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87197 to 84176. [2020-10-14 01:04:01,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84176 states. [2020-10-14 01:04:01,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84176 states to 84176 states and 97960 transitions. [2020-10-14 01:04:01,738 INFO L78 Accepts]: Start accepts. Automaton has 84176 states and 97960 transitions. Word has length 1372 [2020-10-14 01:04:01,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:04:01,740 INFO L479 AbstractCegarLoop]: Abstraction has 84176 states and 97960 transitions. [2020-10-14 01:04:01,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:04:01,741 INFO L276 IsEmpty]: Start isEmpty. Operand 84176 states and 97960 transitions. [2020-10-14 01:04:01,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1443 [2020-10-14 01:04:01,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:04:01,821 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:04:01,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 01:04:01,821 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:04:01,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:04:01,822 INFO L82 PathProgramCache]: Analyzing trace with hash -2111699673, now seen corresponding path program 1 times [2020-10-14 01:04:01,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:04:01,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826796081] [2020-10-14 01:04:01,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:04:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:04:02,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:04:02,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:04:07,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:04:07,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1468 [2020-10-14 01:04:07,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:04:07,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5112 [2020-10-14 01:04:07,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:04:07,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:04:07,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 01:04:07,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:04:07,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 239 [2020-10-14 01:04:07,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:04:07,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:04:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:04:07,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:04:07,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:04:07,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:04:07,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:04:07,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 01:04:07,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:04:07,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:04:07,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:04:07,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:04:07,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:04:07,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:04:07,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:04:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:04:07,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:04:07,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:04:07,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-14 01:04:07,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:04:07,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-14 01:04:07,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:04:07,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:04:07,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:04:07,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:04:07,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 237 [2020-10-14 01:04:07,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:04:07,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 01:04:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:04:07,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:04:07,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:04:07,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 01:04:07,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:04:07,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 01:04:07,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:04:07,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:04:07,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 01:04:07,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:04:07,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 01:04:07,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:04:07,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-14 01:04:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:04:08,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:04:08,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:04:08,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 01:04:08,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:04:08,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 01:04:08,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:04:08,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:04:08,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:04:08,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 01:04:08,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:04:08,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:04:08,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-14 01:04:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:04:08,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:04:08,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:04:08,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 01:04:08,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:04:08,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 01:04:08,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:04:08,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:04:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:04:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:04:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:04:08,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:04:08,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2020-10-14 01:04:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:04:08,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:04:08,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:04:08,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-10-14 01:04:08,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:04:08,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 558 [2020-10-14 01:04:08,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:04:08,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:04:08,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:04:08,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 313 [2020-10-14 01:04:08,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:04:08,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:04:08,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 01:04:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:04:08,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:04:08,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:04:08,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 01:04:08,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:04:08,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 01:04:08,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:04:08,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:04:08,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:04:08,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:04:08,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:04:08,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:04:10,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1109 backedges. 634 proven. 323 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2020-10-14 01:04:10,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826796081] [2020-10-14 01:04:10,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:04:10,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:04:10,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792013645] [2020-10-14 01:04:10,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:04:10,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:04:10,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:04:10,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:04:10,257 INFO L87 Difference]: Start difference. First operand 84176 states and 97960 transitions. Second operand 7 states. [2020-10-14 01:04:21,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:04:21,500 INFO L93 Difference]: Finished difference Result 184306 states and 218720 transitions. [2020-10-14 01:04:21,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 01:04:21,501 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1442 [2020-10-14 01:04:21,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:04:21,733 INFO L225 Difference]: With dead ends: 184306 [2020-10-14 01:04:21,734 INFO L226 Difference]: Without dead ends: 100982 [2020-10-14 01:04:21,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:04:21,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100982 states. [2020-10-14 01:04:22,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100982 to 99162. [2020-10-14 01:04:22,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99162 states. [2020-10-14 01:04:22,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99162 states to 99162 states and 114851 transitions. [2020-10-14 01:04:22,869 INFO L78 Accepts]: Start accepts. Automaton has 99162 states and 114851 transitions. Word has length 1442 [2020-10-14 01:04:22,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:04:22,869 INFO L479 AbstractCegarLoop]: Abstraction has 99162 states and 114851 transitions. [2020-10-14 01:04:22,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:04:22,869 INFO L276 IsEmpty]: Start isEmpty. Operand 99162 states and 114851 transitions. [2020-10-14 01:04:22,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1457 [2020-10-14 01:04:22,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:04:22,942 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:04:22,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 01:04:22,943 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:04:22,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:04:22,943 INFO L82 PathProgramCache]: Analyzing trace with hash -540078454, now seen corresponding path program 1 times [2020-10-14 01:04:22,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:04:22,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508600480] [2020-10-14 01:04:22,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:04:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:04:23,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:04:23,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:04:23,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:04:28,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:04:28,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1480 [2020-10-14 01:04:28,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:04:28,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5195 [2020-10-14 01:04:28,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:04:28,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:04:28,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:04:28,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 01:04:28,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 336 [2020-10-14 01:04:28,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:04:28,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:04:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:04:28,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:04:28,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:04:28,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:04:28,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:04:28,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:04:28,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:04:28,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:04:28,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:04:28,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:04:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:04:28,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:04:28,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:04:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:04:28,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:04:28,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:04:28,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:04:28,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:04:28,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 01:04:28,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:04:28,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:04:28,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:04:28,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:04:28,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 01:04:28,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:04:28,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:04:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:04:28,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:04:29,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:04:29,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-14 01:04:29,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:04:29,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-10-14 01:04:29,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:04:29,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:04:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:04:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:04:29,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 337 [2020-10-14 01:04:29,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0