/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label25.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:46:45,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:46:45,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:46:45,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:46:45,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:46:45,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:46:45,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:46:45,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:46:45,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:46:45,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:46:45,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:46:45,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:46:45,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:46:45,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:46:45,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:46:45,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:46:45,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:46:45,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:46:45,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:46:45,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:46:45,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:46:45,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:46:45,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:46:45,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:46:45,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:46:45,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:46:45,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:46:45,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:46:45,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:46:45,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:46:45,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:46:45,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:46:45,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:46:45,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:46:45,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:46:45,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:46:45,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:46:45,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:46:45,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:46:45,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:46:45,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:46:45,311 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 22:46:45,351 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:46:45,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:46:45,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:46:45,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:46:45,354 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:46:45,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:46:45,354 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:46:45,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:46:45,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:46:45,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:46:45,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:46:45,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:46:45,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:46:45,357 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:46:45,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:46:45,357 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:46:45,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:46:45,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:46:45,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:46:45,358 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:46:45,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:46:45,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:46:45,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:46:45,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:46:45,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:46:45,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:46:45,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:46:45,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:46:45,360 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:46:45,360 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:46:45,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:46:45,695 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:46:45,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:46:45,705 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:46:45,706 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:46:45,707 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label25.c [2020-10-14 22:46:45,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fc1c2952/ae5dbae2d4c4484f9a020b1b42af9a1a/FLAG95d291855 [2020-10-14 22:46:46,480 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:46:46,481 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label25.c [2020-10-14 22:46:46,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fc1c2952/ae5dbae2d4c4484f9a020b1b42af9a1a/FLAG95d291855 [2020-10-14 22:46:46,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fc1c2952/ae5dbae2d4c4484f9a020b1b42af9a1a [2020-10-14 22:46:46,604 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:46:46,606 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:46:46,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:46:46,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:46:46,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:46:46,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:46:46" (1/1) ... [2020-10-14 22:46:46,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e2f0c5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:46:46, skipping insertion in model container [2020-10-14 22:46:46,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:46:46" (1/1) ... [2020-10-14 22:46:46,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:46:46,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:46:48,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:46:48,123 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:46:48,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:46:48,612 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:46:48,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:46:48 WrapperNode [2020-10-14 22:46:48,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:46:48,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:46:48,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:46:48,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:46:48,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:46:48" (1/1) ... [2020-10-14 22:46:48,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:46:48" (1/1) ... [2020-10-14 22:46:48,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:46:48" (1/1) ... [2020-10-14 22:46:48,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:46:48" (1/1) ... [2020-10-14 22:46:48,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:46:48" (1/1) ... [2020-10-14 22:46:48,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:46:48" (1/1) ... [2020-10-14 22:46:48,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:46:48" (1/1) ... [2020-10-14 22:46:48,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:46:48,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:46:48,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:46:48,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:46:48,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:46:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:46:48,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:46:48,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:46:48,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:46:48,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:46:48,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 22:46:48,959 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:46:48,960 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:46:48,961 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:46:48,961 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 22:46:48,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:46:48,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:46:48,961 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:46:48,962 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:46:48,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:46:48,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:46:55,197 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:46:55,198 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:46:55,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:46:55 BoogieIcfgContainer [2020-10-14 22:46:55,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:46:55,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:46:55,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:46:55,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:46:55,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:46:46" (1/3) ... [2020-10-14 22:46:55,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4643e4cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:46:55, skipping insertion in model container [2020-10-14 22:46:55,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:46:48" (2/3) ... [2020-10-14 22:46:55,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4643e4cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:46:55, skipping insertion in model container [2020-10-14 22:46:55,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:46:55" (3/3) ... [2020-10-14 22:46:55,232 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label25.c [2020-10-14 22:46:55,245 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:46:55,259 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:46:55,278 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:46:55,321 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:46:55,321 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:46:55,321 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:46:55,321 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:46:55,321 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:46:55,322 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:46:55,322 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:46:55,322 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:46:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 22:46:55,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-14 22:46:55,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:46:55,379 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] [2020-10-14 22:46:55,380 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:46:55,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:46:55,388 INFO L82 PathProgramCache]: Analyzing trace with hash 806765881, now seen corresponding path program 1 times [2020-10-14 22:46:55,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:46:55,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869157389] [2020-10-14 22:46:55,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:46:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:55,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:56,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:56,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 22:46:56,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:56,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-14 22:46:56,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:56,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:56,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:46:56,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:46:56,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 22:46:56,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:46:56,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:46:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:56,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:56,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:56,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:46:56,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:56,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:46:56,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:56,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:56,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:46:56,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:56,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:46:56,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 22:46:56,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:46:56,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869157389] [2020-10-14 22:46:56,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:46:56,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:46:56,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917760643] [2020-10-14 22:46:56,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:46:56,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:46:56,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:46:56,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:46:56,286 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-14 22:47:06,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:47:06,123 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-14 22:47:06,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:47:06,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-14 22:47:06,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:47:06,176 INFO L225 Difference]: With dead ends: 2270 [2020-10-14 22:47:06,177 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 22:47:06,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:47:06,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 22:47:06,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-14 22:47:06,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-14 22:47:06,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2331 transitions. [2020-10-14 22:47:06,389 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2331 transitions. Word has length 30 [2020-10-14 22:47:06,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:47:06,389 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2331 transitions. [2020-10-14 22:47:06,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:47:06,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2331 transitions. [2020-10-14 22:47:06,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-14 22:47:06,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:06,395 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:47:06,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:47:06,396 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:06,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:06,396 INFO L82 PathProgramCache]: Analyzing trace with hash -237346188, now seen corresponding path program 1 times [2020-10-14 22:47:06,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:06,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630253964] [2020-10-14 22:47:06,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:06,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:06,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:07,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:07,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 22:47:07,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:47:07,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 776 [2020-10-14 22:47:07,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:07,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:07,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:47:07,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:47:07,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:47:07,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:07,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:07,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:07,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:07,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:07,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:07,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:47:07,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:07,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:07,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:47:07,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:07,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:47:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:07,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:07,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:07,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:47:07,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:07,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 22:47:07,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:07,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:07,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:47:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:47:07,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:07,478 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:47:07,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630253964] [2020-10-14 22:47:07,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:47:07,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:47:07,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204131759] [2020-10-14 22:47:07,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:47:07,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:47:07,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:47:07,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:47:07,482 INFO L87 Difference]: Start difference. First operand 1425 states and 2331 transitions. Second operand 7 states. [2020-10-14 22:47:20,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:47:20,461 INFO L93 Difference]: Finished difference Result 4352 states and 7148 transitions. [2020-10-14 22:47:20,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:47:20,461 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 100 [2020-10-14 22:47:20,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:47:20,479 INFO L225 Difference]: With dead ends: 4352 [2020-10-14 22:47:20,480 INFO L226 Difference]: Without dead ends: 2933 [2020-10-14 22:47:20,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:47:20,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2020-10-14 22:47:20,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2876. [2020-10-14 22:47:20,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2876 states. [2020-10-14 22:47:20,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 4032 transitions. [2020-10-14 22:47:20,572 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 4032 transitions. Word has length 100 [2020-10-14 22:47:20,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:47:20,573 INFO L479 AbstractCegarLoop]: Abstraction has 2876 states and 4032 transitions. [2020-10-14 22:47:20,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:47:20,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 4032 transitions. [2020-10-14 22:47:20,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 22:47:20,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:20,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:47:20,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:47:20,578 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:20,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:20,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1316472241, now seen corresponding path program 1 times [2020-10-14 22:47:20,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:20,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630056836] [2020-10-14 22:47:20,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:20,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:20,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:21,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:21,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:47:21,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:47:21,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 538 [2020-10-14 22:47:21,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:21,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:21,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:47:21,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:47:21,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:47:21,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:21,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:21,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:21,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:21,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:21,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:21,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:47:21,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:21,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:21,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:21,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:21,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:47:21,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:21,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:47:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:21,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:21,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:21,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:47:21,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:21,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:47:21,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:21,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:47:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 22:47:21,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:21,401 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:47:21,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630056836] [2020-10-14 22:47:21,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:47:21,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:47:21,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062020066] [2020-10-14 22:47:21,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:47:21,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:47:21,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:47:21,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:47:21,405 INFO L87 Difference]: Start difference. First operand 2876 states and 4032 transitions. Second operand 7 states. [2020-10-14 22:47:32,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:47:32,289 INFO L93 Difference]: Finished difference Result 7324 states and 10335 transitions. [2020-10-14 22:47:32,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:47:32,290 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 101 [2020-10-14 22:47:32,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:47:32,320 INFO L225 Difference]: With dead ends: 7324 [2020-10-14 22:47:32,320 INFO L226 Difference]: Without dead ends: 4454 [2020-10-14 22:47:32,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:47:32,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-10-14 22:47:32,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4367. [2020-10-14 22:47:32,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4367 states. [2020-10-14 22:47:32,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4367 states to 4367 states and 5826 transitions. [2020-10-14 22:47:32,533 INFO L78 Accepts]: Start accepts. Automaton has 4367 states and 5826 transitions. Word has length 101 [2020-10-14 22:47:32,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:47:32,534 INFO L479 AbstractCegarLoop]: Abstraction has 4367 states and 5826 transitions. [2020-10-14 22:47:32,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:47:32,534 INFO L276 IsEmpty]: Start isEmpty. Operand 4367 states and 5826 transitions. [2020-10-14 22:47:32,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-14 22:47:32,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:32,537 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:47:32,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:47:32,538 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:32,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:32,538 INFO L82 PathProgramCache]: Analyzing trace with hash -291971235, now seen corresponding path program 1 times [2020-10-14 22:47:32,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:32,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002124250] [2020-10-14 22:47:32,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:32,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:32,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:33,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:33,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 22:47:33,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:47:33,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1023 [2020-10-14 22:47:33,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:33,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:33,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:47:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:47:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 22:47:33,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 22:47:33,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:33,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:33,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:33,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:33,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:33,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:47:33,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:33,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:33,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:33,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:33,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:47:33,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:33,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:47:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:33,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:33,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:33,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:47:33,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:33,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-14 22:47:33,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:33,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:33,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:33,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:47:33,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 22:47:33,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:34,143 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:47:34,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002124250] [2020-10-14 22:47:34,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:47:34,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:47:34,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084000806] [2020-10-14 22:47:34,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:47:34,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:47:34,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:47:34,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:47:34,146 INFO L87 Difference]: Start difference. First operand 4367 states and 5826 transitions. Second operand 7 states. [2020-10-14 22:47:42,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:47:42,437 INFO L93 Difference]: Finished difference Result 9553 states and 12627 transitions. [2020-10-14 22:47:42,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:47:42,438 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2020-10-14 22:47:42,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:47:42,461 INFO L225 Difference]: With dead ends: 9553 [2020-10-14 22:47:42,461 INFO L226 Difference]: Without dead ends: 5192 [2020-10-14 22:47:42,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:47:42,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5192 states. [2020-10-14 22:47:42,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5192 to 5090. [2020-10-14 22:47:42,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5090 states. [2020-10-14 22:47:42,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5090 states to 5090 states and 6591 transitions. [2020-10-14 22:47:42,597 INFO L78 Accepts]: Start accepts. Automaton has 5090 states and 6591 transitions. Word has length 127 [2020-10-14 22:47:42,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:47:42,598 INFO L479 AbstractCegarLoop]: Abstraction has 5090 states and 6591 transitions. [2020-10-14 22:47:42,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:47:42,598 INFO L276 IsEmpty]: Start isEmpty. Operand 5090 states and 6591 transitions. [2020-10-14 22:47:42,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-14 22:47:42,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:42,601 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:47:42,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:47:42,602 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:42,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:42,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1710797516, now seen corresponding path program 1 times [2020-10-14 22:47:42,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:42,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465070150] [2020-10-14 22:47:42,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:42,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:42,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:43,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:43,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:47:43,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:47:43,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1056 [2020-10-14 22:47:43,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:43,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:43,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:47:43,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:47:43,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 22:47:43,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:47:43,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:43,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:43,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:43,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:43,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:43,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:47:43,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:43,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:47:43,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:43,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:47:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:43,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:44,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:44,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 22:47:44,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:44,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-14 22:47:44,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:44,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:44,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:44,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:47:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-14 22:47:44,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:47:44,236 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 22:47:44,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465070150] [2020-10-14 22:47:44,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:47:44,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:47:44,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748523727] [2020-10-14 22:47:44,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 22:47:44,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:47:44,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 22:47:44,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:47:44,243 INFO L87 Difference]: Start difference. First operand 5090 states and 6591 transitions. Second operand 6 states. [2020-10-14 22:47:53,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:47:53,553 INFO L93 Difference]: Finished difference Result 13960 states and 18761 transitions. [2020-10-14 22:47:53,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:47:53,554 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2020-10-14 22:47:53,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:47:53,598 INFO L225 Difference]: With dead ends: 13960 [2020-10-14 22:47:53,598 INFO L226 Difference]: Without dead ends: 9578 [2020-10-14 22:47:53,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:47:53,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9578 states. [2020-10-14 22:47:53,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9578 to 8805. [2020-10-14 22:47:53,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8805 states. [2020-10-14 22:47:53,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8805 states to 8805 states and 10917 transitions. [2020-10-14 22:47:53,803 INFO L78 Accepts]: Start accepts. Automaton has 8805 states and 10917 transitions. Word has length 216 [2020-10-14 22:47:53,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:47:53,805 INFO L479 AbstractCegarLoop]: Abstraction has 8805 states and 10917 transitions. [2020-10-14 22:47:53,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 22:47:53,805 INFO L276 IsEmpty]: Start isEmpty. Operand 8805 states and 10917 transitions. [2020-10-14 22:47:53,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2020-10-14 22:47:53,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:53,812 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:47:53,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:47:53,813 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:53,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:53,813 INFO L82 PathProgramCache]: Analyzing trace with hash -680910873, now seen corresponding path program 1 times [2020-10-14 22:47:53,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:53,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974930193] [2020-10-14 22:47:53,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:53,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:54,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:54,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:54,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:57,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:57,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 425 [2020-10-14 22:47:57,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:47:57,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3253 [2020-10-14 22:47:57,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:57,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:57,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:57,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:47:57,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 22:47:57,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:57,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:57,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:57,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:57,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:57,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:57,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:47:57,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:57,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:57,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:57,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:47:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:57,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:57,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:57,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 22:47:57,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:57,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 22:47:57,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:57,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:57,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:57,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:57,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 22:47:57,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:57,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-14 22:47:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:57,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:57,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:57,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:47:57,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:57,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-14 22:47:57,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:57,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:57,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:57,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:47:57,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:47:57,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:58,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-14 22:47:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:58,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:58,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:58,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 22:47:58,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:58,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:47:58,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:58,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:58,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:58,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 22:47:58,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:58,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:58,806 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 192 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-14 22:47:58,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974930193] [2020-10-14 22:47:58,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:47:58,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:47:58,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861458524] [2020-10-14 22:47:58,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:47:58,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:47:58,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:47:58,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:47:58,812 INFO L87 Difference]: Start difference. First operand 8805 states and 10917 transitions. Second operand 8 states. [2020-10-14 22:48:17,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:48:17,314 INFO L93 Difference]: Finished difference Result 30129 states and 38927 transitions. [2020-10-14 22:48:17,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 22:48:17,315 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 411 [2020-10-14 22:48:17,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:48:17,379 INFO L225 Difference]: With dead ends: 30129 [2020-10-14 22:48:17,380 INFO L226 Difference]: Without dead ends: 20490 [2020-10-14 22:48:17,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-10-14 22:48:17,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20490 states. [2020-10-14 22:48:17,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20490 to 17615. [2020-10-14 22:48:17,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17615 states. [2020-10-14 22:48:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17615 states to 17615 states and 20687 transitions. [2020-10-14 22:48:17,739 INFO L78 Accepts]: Start accepts. Automaton has 17615 states and 20687 transitions. Word has length 411 [2020-10-14 22:48:17,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:48:17,740 INFO L479 AbstractCegarLoop]: Abstraction has 17615 states and 20687 transitions. [2020-10-14 22:48:17,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:48:17,740 INFO L276 IsEmpty]: Start isEmpty. Operand 17615 states and 20687 transitions. [2020-10-14 22:48:17,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2020-10-14 22:48:17,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:48:17,758 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:48:17,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:48:17,758 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:48:17,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:48:17,759 INFO L82 PathProgramCache]: Analyzing trace with hash 37850924, now seen corresponding path program 1 times [2020-10-14 22:48:17,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:48:17,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512374356] [2020-10-14 22:48:17,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:48:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:17,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:18,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:20,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:20,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:22,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:22,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:48:22,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:48:22,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 22:48:22,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:22,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:22,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:48:22,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:48:22,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-14 22:48:22,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:23,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:48:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:23,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:23,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:23,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:48:23,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:23,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:48:23,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:23,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:23,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:48:23,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:23,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:48:23,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:23,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:48:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:23,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:23,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:23,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:48:23,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:23,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 568 [2020-10-14 22:48:23,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:23,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:48:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 22:48:23,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:24,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:48:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:24,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:24,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:24,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:48:24,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:24,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:48:24,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:24,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:24,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:48:24,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:24,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 22:48:24,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:24,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 22:48:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:24,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:24,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:24,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:48:24,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:24,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:48:24,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:24,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-14 22:48:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:24,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:24,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:48:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:24,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:24,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:24,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:48:24,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:24,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:48:24,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:24,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:24,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:24,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 22:48:24,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:24,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:24,976 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 69 proven. 169 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-14 22:48:24,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512374356] [2020-10-14 22:48:24,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:48:24,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:48:24,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188121439] [2020-10-14 22:48:24,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:48:24,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:48:24,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:48:24,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:48:24,980 INFO L87 Difference]: Start difference. First operand 17615 states and 20687 transitions. Second operand 8 states. [2020-10-14 22:48:37,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:48:37,132 INFO L93 Difference]: Finished difference Result 40437 states and 48742 transitions. [2020-10-14 22:48:37,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:48:37,134 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 516 [2020-10-14 22:48:37,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:48:37,199 INFO L225 Difference]: With dead ends: 40437 [2020-10-14 22:48:37,199 INFO L226 Difference]: Without dead ends: 23538 [2020-10-14 22:48:37,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:48:37,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23538 states. [2020-10-14 22:48:37,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23538 to 23468. [2020-10-14 22:48:37,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23468 states. [2020-10-14 22:48:37,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23468 states to 23468 states and 27929 transitions. [2020-10-14 22:48:37,665 INFO L78 Accepts]: Start accepts. Automaton has 23468 states and 27929 transitions. Word has length 516 [2020-10-14 22:48:37,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:48:37,666 INFO L479 AbstractCegarLoop]: Abstraction has 23468 states and 27929 transitions. [2020-10-14 22:48:37,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:48:37,666 INFO L276 IsEmpty]: Start isEmpty. Operand 23468 states and 27929 transitions. [2020-10-14 22:48:37,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1044 [2020-10-14 22:48:37,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:48:37,704 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:48:37,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:48:37,704 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:48:37,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:48:37,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1386514268, now seen corresponding path program 1 times [2020-10-14 22:48:37,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:48:37,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534816172] [2020-10-14 22:48:37,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:48:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:38,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:38,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:39,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:43,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:43,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1065 [2020-10-14 22:48:43,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:48:43,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5108 [2020-10-14 22:48:43,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:43,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:43,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:43,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:48:43,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:48:43,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:43,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:48:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:43,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:43,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:43,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:48:43,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:43,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:48:43,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:43,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:43,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:43,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:43,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:43,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:43,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:48:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:43,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:43,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:43,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:48:43,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:43,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 22:48:43,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:43,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:43,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:43,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:43,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:43,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:43,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:48:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:43,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:43,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:43,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:48:43,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:43,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 22:48:43,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:43,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:43,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:43,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:43,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:43,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:43,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:48:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:43,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:43,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:43,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:48:43,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:43,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:48:43,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:43,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:43,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:43,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:48:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:43,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:43,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:43,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:48:43,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:43,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 22:48:43,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:43,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:48:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:48:43,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:44,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:48:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:44,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:44,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:44,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:48:44,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:44,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:48:44,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:44,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:44,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:48:44,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:44,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:48:44,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:44,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:48:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:44,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:44,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:44,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:48:44,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:44,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 22:48:44,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:44,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:44,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:44,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:44,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:48:44,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:44,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-14 22:48:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:44,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:44,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:44,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:48:44,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:44,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:48:44,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:44,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:44,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:44,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 22:48:44,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:44,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:48:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 282 proven. 88 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2020-10-14 22:48:45,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534816172] [2020-10-14 22:48:45,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:48:45,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:48:45,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308536106] [2020-10-14 22:48:45,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:48:45,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:48:45,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:48:45,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:48:45,331 INFO L87 Difference]: Start difference. First operand 23468 states and 27929 transitions. Second operand 7 states. [2020-10-14 22:48:54,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:48:54,527 INFO L93 Difference]: Finished difference Result 57141 states and 70526 transitions. [2020-10-14 22:48:54,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:48:54,529 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1043 [2020-10-14 22:48:54,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:48:54,642 INFO L225 Difference]: With dead ends: 57141 [2020-10-14 22:48:54,642 INFO L226 Difference]: Without dead ends: 34389 [2020-10-14 22:48:54,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:48:54,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34389 states. [2020-10-14 22:48:55,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34389 to 33595. [2020-10-14 22:48:55,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33595 states. [2020-10-14 22:48:55,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33595 states to 33595 states and 40400 transitions. [2020-10-14 22:48:55,234 INFO L78 Accepts]: Start accepts. Automaton has 33595 states and 40400 transitions. Word has length 1043 [2020-10-14 22:48:55,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:48:55,236 INFO L479 AbstractCegarLoop]: Abstraction has 33595 states and 40400 transitions. [2020-10-14 22:48:55,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:48:55,236 INFO L276 IsEmpty]: Start isEmpty. Operand 33595 states and 40400 transitions. [2020-10-14 22:48:55,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1126 [2020-10-14 22:48:55,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:48:55,286 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:48:55,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:48:55,287 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:48:55,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:48:55,288 INFO L82 PathProgramCache]: Analyzing trace with hash -604353881, now seen corresponding path program 1 times [2020-10-14 22:48:55,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:48:55,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981911284] [2020-10-14 22:48:55,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:48:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:55,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:56,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:58,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:58,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:00,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:00,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1147 [2020-10-14 22:49:00,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:49:00,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 22:49:00,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:00,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:00,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:00,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 983 [2020-10-14 22:49:00,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 22:49:00,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:00,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:49:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:00,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:00,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:00,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:49:00,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:00,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:49:00,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:00,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:00,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:00,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:00,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:00,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:00,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:49:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:00,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:00,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:00,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:49:00,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:00,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 22:49:00,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:00,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:00,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:00,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:00,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:00,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:00,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:49:00,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:00,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:49:00,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:00,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:00,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:00,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:00,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:00,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:00,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:49:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:00,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:00,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:00,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:49:00,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:00,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:49:00,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:00,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:00,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:01,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:49:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:01,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:01,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:01,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 22:49:01,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:01,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 22:49:01,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:01,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:01,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:01,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:01,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:01,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:01,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 22:49:01,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:01,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:49:01,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:01,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:01,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:01,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:01,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:01,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:01,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-14 22:49:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:01,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:01,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:01,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:49:01,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:01,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 22:49:01,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:01,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:01,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:01,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:01,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:49:01,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:01,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-14 22:49:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:01,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:01,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:01,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 22:49:01,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:01,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:49:01,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:01,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:01,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:01,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:01,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 22:49:01,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:02,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 479 proven. 2 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2020-10-14 22:49:02,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981911284] [2020-10-14 22:49:02,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:49:02,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:49:02,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916567277] [2020-10-14 22:49:02,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:49:02,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:49:02,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:49:02,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:49:02,178 INFO L87 Difference]: Start difference. First operand 33595 states and 40400 transitions. Second operand 8 states. [2020-10-14 22:49:11,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:49:11,953 INFO L93 Difference]: Finished difference Result 79362 states and 99022 transitions. [2020-10-14 22:49:11,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:49:11,954 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1125 [2020-10-14 22:49:11,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:49:12,084 INFO L225 Difference]: With dead ends: 79362 [2020-10-14 22:49:12,084 INFO L226 Difference]: Without dead ends: 46483 [2020-10-14 22:49:12,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:49:12,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46483 states. [2020-10-14 22:49:12,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46483 to 46455. [2020-10-14 22:49:12,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46455 states. [2020-10-14 22:49:12,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46455 states to 46455 states and 57017 transitions. [2020-10-14 22:49:12,898 INFO L78 Accepts]: Start accepts. Automaton has 46455 states and 57017 transitions. Word has length 1125 [2020-10-14 22:49:12,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:49:12,899 INFO L479 AbstractCegarLoop]: Abstraction has 46455 states and 57017 transitions. [2020-10-14 22:49:12,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:49:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 46455 states and 57017 transitions. [2020-10-14 22:49:12,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1141 [2020-10-14 22:49:12,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:49:12,917 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:49:12,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:49:12,918 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:49:12,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:49:12,918 INFO L82 PathProgramCache]: Analyzing trace with hash -912205206, now seen corresponding path program 1 times [2020-10-14 22:49:12,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:49:12,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198164846] [2020-10-14 22:49:12,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:49:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:13,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:13,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:13,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:18,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:18,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1164 [2020-10-14 22:49:18,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:49:18,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-14 22:49:18,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:18,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:18,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:18,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 930 [2020-10-14 22:49:18,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 22:49:18,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:18,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:49:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:18,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:18,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:18,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:49:18,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:18,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:49:18,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:18,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:18,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:18,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:18,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:18,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:18,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:49:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:18,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:18,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:18,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:49:18,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:18,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 22:49:18,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:18,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:18,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:18,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:18,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:18,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:18,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:18,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:18,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:18,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:49:18,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:18,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:49:18,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:18,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:18,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:18,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:18,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:18,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:18,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:49:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:18,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:18,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:18,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:49:18,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:18,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:49:18,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:18,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:18,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:18,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:18,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:18,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:18,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:49:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:18,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:18,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:18,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:49:18,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:18,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:49:18,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:18,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:18,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:18,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:18,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:18,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:18,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:18,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:49:18,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:18,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:49:18,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:18,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:18,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:18,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:18,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:49:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:18,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:18,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:18,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:49:18,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:18,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:49:18,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:18,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:18,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:49:18,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:18,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-14 22:49:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:18,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:19,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:19,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:49:19,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:19,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:49:19,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:19,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:19,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:19,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:19,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:49:19,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:19,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2020-10-14 22:49:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:19,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:19,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:19,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:49:19,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:19,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:49:19,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:19,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 22:49:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:19,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:19,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 426 proven. 88 refuted. 0 times theorem prover too weak. 701 trivial. 0 not checked. [2020-10-14 22:49:19,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198164846] [2020-10-14 22:49:19,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:49:19,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:49:19,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701584900] [2020-10-14 22:49:19,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:49:19,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:49:19,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:49:19,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:49:19,799 INFO L87 Difference]: Start difference. First operand 46455 states and 57017 transitions. Second operand 7 states. [2020-10-14 22:49:30,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:49:30,243 INFO L93 Difference]: Finished difference Result 103615 states and 128694 transitions. [2020-10-14 22:49:30,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:49:30,244 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1140 [2020-10-14 22:49:30,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:49:30,407 INFO L225 Difference]: With dead ends: 103615 [2020-10-14 22:49:30,408 INFO L226 Difference]: Without dead ends: 57876 [2020-10-14 22:49:30,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:49:30,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57876 states. [2020-10-14 22:49:31,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57876 to 57145. [2020-10-14 22:49:31,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57145 states. [2020-10-14 22:49:31,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57145 states to 57145 states and 69742 transitions. [2020-10-14 22:49:31,300 INFO L78 Accepts]: Start accepts. Automaton has 57145 states and 69742 transitions. Word has length 1140 [2020-10-14 22:49:31,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:49:31,301 INFO L479 AbstractCegarLoop]: Abstraction has 57145 states and 69742 transitions. [2020-10-14 22:49:31,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:49:31,301 INFO L276 IsEmpty]: Start isEmpty. Operand 57145 states and 69742 transitions. [2020-10-14 22:49:31,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1208 [2020-10-14 22:49:31,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:49:31,325 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:49:31,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:49:31,325 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:49:31,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:49:31,326 INFO L82 PathProgramCache]: Analyzing trace with hash -795782313, now seen corresponding path program 1 times [2020-10-14 22:49:31,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:49:31,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022982987] [2020-10-14 22:49:31,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:49:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:31,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:33,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:35,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:35,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1231 [2020-10-14 22:49:35,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:49:35,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4035 [2020-10-14 22:49:35,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:35,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:35,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:35,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-14 22:49:35,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 22:49:35,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:35,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:49:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:35,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:35,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:35,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:49:35,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:35,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:49:35,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:35,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:35,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:35,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:35,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:35,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:35,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:49:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:35,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:36,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:36,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:49:36,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:36,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-14 22:49:36,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:36,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:36,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:36,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:36,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:36,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:36,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:36,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:36,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:36,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:49:36,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:36,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 22:49:36,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:36,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:36,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:36,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:36,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:36,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:36,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:49:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:36,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:36,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:36,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:49:36,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:36,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:49:36,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:36,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:36,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:36,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:36,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:36,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:49:36,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:49:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:36,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:36,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:36,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:49:36,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:36,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:49:36,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:36,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:36,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:36,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:36,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:36,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:49:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:36,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:36,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:36,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:49:36,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:36,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:49:36,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:36,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:36,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:36,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:36,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:36,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:36,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:49:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:36,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:36,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:36,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:49:36,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:36,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:49:36,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:36,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:36,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:49:36,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:36,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:49:36,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:36,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:49:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:36,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:36,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:36,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:49:36,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:36,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:49:36,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:36,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:49:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:49:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:49:36,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:36,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-14 22:49:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:36,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:36,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:49:36,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:49:36,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:49:36,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:49:36,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:49:36,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:49:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:49:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:49:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 22:49:36,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:49:37,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 474 proven. 2 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2020-10-14 22:49:37,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022982987] [2020-10-14 22:49:37,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:49:37,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:49:37,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901424336] [2020-10-14 22:49:37,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:49:37,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:49:37,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:49:37,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:49:37,367 INFO L87 Difference]: Start difference. First operand 57145 states and 69742 transitions. Second operand 7 states. [2020-10-14 22:49:54,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:49:54,067 INFO L93 Difference]: Finished difference Result 127807 states and 159785 transitions. [2020-10-14 22:49:54,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:49:54,068 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1207 [2020-10-14 22:49:54,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:49:54,282 INFO L225 Difference]: With dead ends: 127807 [2020-10-14 22:49:54,282 INFO L226 Difference]: Without dead ends: 71378 [2020-10-14 22:49:54,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:49:54,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71378 states. [2020-10-14 22:49:55,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71378 to 69962. [2020-10-14 22:49:55,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69962 states. [2020-10-14 22:49:55,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69962 states to 69962 states and 85359 transitions. [2020-10-14 22:49:55,855 INFO L78 Accepts]: Start accepts. Automaton has 69962 states and 85359 transitions. Word has length 1207 [2020-10-14 22:49:55,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:49:55,857 INFO L479 AbstractCegarLoop]: Abstraction has 69962 states and 85359 transitions. [2020-10-14 22:49:55,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:49:55,857 INFO L276 IsEmpty]: Start isEmpty. Operand 69962 states and 85359 transitions. [2020-10-14 22:49:55,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1234 [2020-10-14 22:49:55,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:49:55,899 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:49:55,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:49:55,900 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:49:55,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:49:55,901 INFO L82 PathProgramCache]: Analyzing trace with hash 2052888044, now seen corresponding path program 1 times [2020-10-14 22:49:55,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:49:55,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103393906] [2020-10-14 22:49:55,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:49:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:49:56,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:56,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:58,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:49:58,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:01,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:01,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1257 [2020-10-14 22:50:01,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:50:01,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5729 [2020-10-14 22:50:01,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:01,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1058 [2020-10-14 22:50:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-14 22:50:01,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:02,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:50:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:02,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:02,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:02,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:50:02,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:02,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:50:02,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:02,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:02,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:02,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:02,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:02,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:02,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:50:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:02,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:02,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:02,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:50:02,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:02,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 22:50:02,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:02,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:02,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:02,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:02,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:02,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:02,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:02,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:02,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:02,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:50:02,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:02,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 22:50:02,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:02,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:02,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:02,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:02,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:02,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:02,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:50:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:02,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:02,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:02,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:50:02,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:02,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:50:02,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:02,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:02,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:02,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:02,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:02,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:02,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:50:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:02,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:02,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:02,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 22:50:02,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:02,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:50:02,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:02,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:02,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:02,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:02,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:02,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:02,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:50:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:02,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:02,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:02,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 22:50:02,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:02,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:50:02,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:02,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:02,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:02,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:02,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:02,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:02,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-14 22:50:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:02,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:02,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:02,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:50:02,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:02,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:50:02,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:02,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:02,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:50:02,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:02,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:50:02,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:02,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-14 22:50:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:02,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:02,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:02,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 22:50:02,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:02,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:50:02,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:02,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:02,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:50:02,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:50:02,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 22:50:02,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:50:02,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1044 [2020-10-14 22:50:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:02,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:03,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:50:03,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-14 22:50:03,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:50:03,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-14 22:50:03,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:50:03,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:50:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:50:03,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:50:03,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 22:50:03,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:50:03,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1421 backedges. 647 proven. 2 refuted. 0 times theorem prover too weak. 772 trivial. 0 not checked. [2020-10-14 22:50:03,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103393906] [2020-10-14 22:50:03,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:50:03,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:50:03,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741453979] [2020-10-14 22:50:03,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:50:03,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:50:03,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:50:03,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:50:03,815 INFO L87 Difference]: Start difference. First operand 69962 states and 85359 transitions. Second operand 7 states. [2020-10-14 22:50:20,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:50:20,918 INFO L93 Difference]: Finished difference Result 167495 states and 209149 transitions. [2020-10-14 22:50:20,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:50:20,919 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1233 [2020-10-14 22:50:20,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:50:21,115 INFO L225 Difference]: With dead ends: 167495 [2020-10-14 22:50:21,115 INFO L226 Difference]: Without dead ends: 92184 [2020-10-14 22:50:21,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:50:21,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92184 states. [2020-10-14 22:50:22,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92184 to 87252. [2020-10-14 22:50:22,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87252 states. [2020-10-14 22:50:22,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87252 states to 87252 states and 100230 transitions. [2020-10-14 22:50:22,754 INFO L78 Accepts]: Start accepts. Automaton has 87252 states and 100230 transitions. Word has length 1233 [2020-10-14 22:50:22,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:50:22,755 INFO L479 AbstractCegarLoop]: Abstraction has 87252 states and 100230 transitions. [2020-10-14 22:50:22,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:50:22,755 INFO L276 IsEmpty]: Start isEmpty. Operand 87252 states and 100230 transitions. [2020-10-14 22:50:22,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1360 [2020-10-14 22:50:22,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:50:22,812 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:50:22,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:50:22,813 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:50:22,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:50:22,815 INFO L82 PathProgramCache]: Analyzing trace with hash 98442202, now seen corresponding path program 1 times [2020-10-14 22:50:22,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:50:22,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846409820] [2020-10-14 22:50:22,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:50:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:50:23,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:23,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:24,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:50:24,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking...