/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 02:46:22,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 02:46:22,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 02:46:22,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 02:46:22,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 02:46:22,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 02:46:22,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 02:46:22,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 02:46:22,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 02:46:22,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 02:46:22,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 02:46:22,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 02:46:22,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 02:46:22,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 02:46:22,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 02:46:22,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 02:46:22,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 02:46:22,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 02:46:22,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 02:46:22,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 02:46:22,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 02:46:22,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 02:46:22,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 02:46:22,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 02:46:22,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 02:46:22,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 02:46:22,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 02:46:22,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 02:46:22,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 02:46:22,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 02:46:22,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 02:46:22,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 02:46:22,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 02:46:22,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 02:46:22,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 02:46:22,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 02:46:22,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 02:46:22,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 02:46:22,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 02:46:22,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 02:46:22,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 02:46:22,203 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 02:46:22,243 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 02:46:22,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 02:46:22,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 02:46:22,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 02:46:22,247 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 02:46:22,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 02:46:22,247 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 02:46:22,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 02:46:22,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 02:46:22,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 02:46:22,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 02:46:22,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 02:46:22,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 02:46:22,250 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 02:46:22,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 02:46:22,251 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 02:46:22,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 02:46:22,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 02:46:22,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 02:46:22,252 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 02:46:22,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 02:46:22,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 02:46:22,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 02:46:22,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 02:46:22,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 02:46:22,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 02:46:22,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 02:46:22,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 02:46:22,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 02:46:22,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 02:46:22,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 02:46:22,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 02:46:22,597 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 02:46:22,599 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 02:46:22,600 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 02:46:22,600 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label21.c [2020-10-14 02:46:22,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/734ebf178/499edc11e40c4b68ab6e90a8dfc09358/FLAG7321cab9c [2020-10-14 02:46:23,453 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 02:46:23,454 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem12_label21.c [2020-10-14 02:46:23,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/734ebf178/499edc11e40c4b68ab6e90a8dfc09358/FLAG7321cab9c [2020-10-14 02:46:23,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/734ebf178/499edc11e40c4b68ab6e90a8dfc09358 [2020-10-14 02:46:23,610 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 02:46:23,612 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 02:46:23,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 02:46:23,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 02:46:23,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 02:46:23,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:46:23" (1/1) ... [2020-10-14 02:46:23,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b19e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:46:23, skipping insertion in model container [2020-10-14 02:46:23,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:46:23" (1/1) ... [2020-10-14 02:46:23,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 02:46:23,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 02:46:25,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:46:25,626 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 02:46:26,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:46:26,288 INFO L208 MainTranslator]: Completed translation [2020-10-14 02:46:26,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:46:26 WrapperNode [2020-10-14 02:46:26,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 02:46:26,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 02:46:26,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 02:46:26,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 02:46:26,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:46:26" (1/1) ... [2020-10-14 02:46:26,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:46:26" (1/1) ... [2020-10-14 02:46:26,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:46:26" (1/1) ... [2020-10-14 02:46:26,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:46:26" (1/1) ... [2020-10-14 02:46:26,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:46:26" (1/1) ... [2020-10-14 02:46:26,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:46:26" (1/1) ... [2020-10-14 02:46:26,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:46:26" (1/1) ... [2020-10-14 02:46:26,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 02:46:26,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 02:46:26,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 02:46:26,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 02:46:26,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:46:26" (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 02:46:26,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 02:46:26,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 02:46:26,664 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 02:46:26,664 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 02:46:26,665 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 02:46:26,665 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 02:46:26,665 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 02:46:26,665 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 02:46:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 02:46:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 02:46:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 02:46:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 02:46:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 02:46:26,667 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 02:46:26,667 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 02:46:26,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 02:46:26,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 02:46:31,506 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 02:46:31,507 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 02:46:31,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:46:31 BoogieIcfgContainer [2020-10-14 02:46:31,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 02:46:31,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 02:46:31,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 02:46:31,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 02:46:31,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:46:23" (1/3) ... [2020-10-14 02:46:31,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2425c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:46:31, skipping insertion in model container [2020-10-14 02:46:31,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:46:26" (2/3) ... [2020-10-14 02:46:31,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2425c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:46:31, skipping insertion in model container [2020-10-14 02:46:31,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:46:31" (3/3) ... [2020-10-14 02:46:31,538 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem12_label21.c [2020-10-14 02:46:31,555 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 02:46:31,576 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 02:46:31,613 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 02:46:31,705 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 02:46:31,705 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 02:46:31,705 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 02:46:31,705 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 02:46:31,705 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 02:46:31,705 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 02:46:31,706 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 02:46:31,706 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 02:46:31,766 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states. [2020-10-14 02:46:31,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 02:46:31,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:46:31,775 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] [2020-10-14 02:46:31,775 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:46:31,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:46:31,783 INFO L82 PathProgramCache]: Analyzing trace with hash -224952883, now seen corresponding path program 1 times [2020-10-14 02:46:31,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:46:31,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805705601] [2020-10-14 02:46:31,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:46:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:32,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:32,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:32,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 02:46:32,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:32,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 435 [2020-10-14 02:46:32,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:32,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:32,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 02:46:32,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:46:32,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 02:46:32,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 02:46:32,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:46:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:32,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:32,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:32,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:46:32,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:32,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 02:46:32,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:32,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:32,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:46:32,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:46:32,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:46:32,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:32,569 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 02:46:32,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805705601] [2020-10-14 02:46:32,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 02:46:32,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 02:46:32,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026888174] [2020-10-14 02:46:32,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 02:46:32,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:46:32,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 02:46:32,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 02:46:32,599 INFO L87 Difference]: Start difference. First operand 839 states. Second operand 4 states. [2020-10-14 02:46:41,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:46:41,090 INFO L93 Difference]: Finished difference Result 2471 states and 4736 transitions. [2020-10-14 02:46:41,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:46:41,093 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-10-14 02:46:41,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:46:41,135 INFO L225 Difference]: With dead ends: 2471 [2020-10-14 02:46:41,136 INFO L226 Difference]: Without dead ends: 1568 [2020-10-14 02:46:41,149 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 02:46:41,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2020-10-14 02:46:41,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1553. [2020-10-14 02:46:41,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1553 states. [2020-10-14 02:46:41,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 2833 transitions. [2020-10-14 02:46:41,318 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 2833 transitions. Word has length 28 [2020-10-14 02:46:41,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:46:41,319 INFO L479 AbstractCegarLoop]: Abstraction has 1553 states and 2833 transitions. [2020-10-14 02:46:41,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 02:46:41,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 2833 transitions. [2020-10-14 02:46:41,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 02:46:41,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:46:41,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:46:41,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 02:46:41,326 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:46:41,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:46:41,327 INFO L82 PathProgramCache]: Analyzing trace with hash -983778311, now seen corresponding path program 1 times [2020-10-14 02:46:41,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:46:41,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101352446] [2020-10-14 02:46:41,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:46:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:41,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:41,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:42,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:42,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:46:42,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:46:42,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1293 [2020-10-14 02:46:42,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:42,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:42,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:46:42,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-14 02:46:42,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 02:46:42,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:46:42,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:46:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:42,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:42,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:42,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:46:42,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:42,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:46:42,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:42,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:42,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:46:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:46:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:46:42,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:42,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:46:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:42,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:42,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:42,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 02:46:42,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:42,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 02:46:42,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:42,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:42,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:46:42,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:46:42,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 02:46:42,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:42,963 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:46:42,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101352446] [2020-10-14 02:46:42,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:46:42,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:46:42,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037927169] [2020-10-14 02:46:42,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:46:42,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:46:42,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:46:42,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:46:42,968 INFO L87 Difference]: Start difference. First operand 1553 states and 2833 transitions. Second operand 5 states. [2020-10-14 02:46:53,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:46:53,726 INFO L93 Difference]: Finished difference Result 4671 states and 8571 transitions. [2020-10-14 02:46:53,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:46:53,733 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2020-10-14 02:46:53,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:46:53,755 INFO L225 Difference]: With dead ends: 4671 [2020-10-14 02:46:53,755 INFO L226 Difference]: Without dead ends: 3124 [2020-10-14 02:46:53,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:46:53,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2020-10-14 02:46:53,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 3120. [2020-10-14 02:46:53,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3120 states. [2020-10-14 02:46:53,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 5022 transitions. [2020-10-14 02:46:53,868 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 5022 transitions. Word has length 101 [2020-10-14 02:46:53,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:46:53,869 INFO L479 AbstractCegarLoop]: Abstraction has 3120 states and 5022 transitions. [2020-10-14 02:46:53,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:46:53,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 5022 transitions. [2020-10-14 02:46:53,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-14 02:46:53,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:46:53,873 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:46:53,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 02:46:53,874 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:46:53,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:46:53,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1246645461, now seen corresponding path program 1 times [2020-10-14 02:46:53,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:46:53,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197344297] [2020-10-14 02:46:53,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:46:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:53,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:54,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:54,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:54,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 02:46:54,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:46:54,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 635 [2020-10-14 02:46:54,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:54,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:54,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:46:54,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 02:46:54,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 02:46:54,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:54,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:46:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:54,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:54,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:54,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:46:54,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:54,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:46:54,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:54,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:54,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:46:54,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:46:54,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:46:54,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:54,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:46:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:54,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:54,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:54,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 02:46:54,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:54,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 02:46:54,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:54,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:54,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:46:54,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:46:54,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 02:46:54,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:54,783 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:46:54,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197344297] [2020-10-14 02:46:54,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:46:54,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:46:54,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624284618] [2020-10-14 02:46:54,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:46:54,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:46:54,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:46:54,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:46:54,787 INFO L87 Difference]: Start difference. First operand 3120 states and 5022 transitions. Second operand 5 states. [2020-10-14 02:47:04,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:47:04,779 INFO L93 Difference]: Finished difference Result 9347 states and 15266 transitions. [2020-10-14 02:47:04,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:47:04,781 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2020-10-14 02:47:04,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:47:04,819 INFO L225 Difference]: With dead ends: 9347 [2020-10-14 02:47:04,819 INFO L226 Difference]: Without dead ends: 6233 [2020-10-14 02:47:04,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:47:04,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6233 states. [2020-10-14 02:47:04,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6233 to 6229. [2020-10-14 02:47:04,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6229 states. [2020-10-14 02:47:05,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6229 states to 6229 states and 8899 transitions. [2020-10-14 02:47:05,006 INFO L78 Accepts]: Start accepts. Automaton has 6229 states and 8899 transitions. Word has length 103 [2020-10-14 02:47:05,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:47:05,007 INFO L479 AbstractCegarLoop]: Abstraction has 6229 states and 8899 transitions. [2020-10-14 02:47:05,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:47:05,007 INFO L276 IsEmpty]: Start isEmpty. Operand 6229 states and 8899 transitions. [2020-10-14 02:47:05,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 02:47:05,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:47:05,010 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:47:05,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 02:47:05,011 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:47:05,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:47:05,011 INFO L82 PathProgramCache]: Analyzing trace with hash 351866729, now seen corresponding path program 1 times [2020-10-14 02:47:05,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:47:05,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [71750516] [2020-10-14 02:47:05,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:47:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:05,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:05,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:05,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:05,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 02:47:05,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:47:05,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 825 [2020-10-14 02:47:05,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:05,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:05,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:47:05,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-14 02:47:05,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 02:47:05,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:47:05,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:47:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:05,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:05,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:05,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:47:05,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:47:05,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:47:05,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:05,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:05,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:47:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:47:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:47:05,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:47:05,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:47:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:05,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:06,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:06,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 02:47:06,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:47:06,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 02:47:06,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:06,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:06,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:47:06,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:47:06,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 02:47:06,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:47:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:47:06,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [71750516] [2020-10-14 02:47:06,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:47:06,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:47:06,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69494147] [2020-10-14 02:47:06,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:47:06,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:47:06,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:47:06,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:47:06,108 INFO L87 Difference]: Start difference. First operand 6229 states and 8899 transitions. Second operand 5 states. [2020-10-14 02:47:17,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:47:17,019 INFO L93 Difference]: Finished difference Result 18677 states and 27224 transitions. [2020-10-14 02:47:17,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:47:17,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-10-14 02:47:17,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:47:17,106 INFO L225 Difference]: With dead ends: 18677 [2020-10-14 02:47:17,106 INFO L226 Difference]: Without dead ends: 12454 [2020-10-14 02:47:17,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:47:17,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12454 states. [2020-10-14 02:47:17,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12454 to 12450. [2020-10-14 02:47:17,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12450 states. [2020-10-14 02:47:17,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12450 states to 12450 states and 17349 transitions. [2020-10-14 02:47:17,526 INFO L78 Accepts]: Start accepts. Automaton has 12450 states and 17349 transitions. Word has length 109 [2020-10-14 02:47:17,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:47:17,528 INFO L479 AbstractCegarLoop]: Abstraction has 12450 states and 17349 transitions. [2020-10-14 02:47:17,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:47:17,528 INFO L276 IsEmpty]: Start isEmpty. Operand 12450 states and 17349 transitions. [2020-10-14 02:47:17,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-14 02:47:17,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:47:17,545 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:47:17,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 02:47:17,546 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:47:17,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:47:17,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1618385432, now seen corresponding path program 1 times [2020-10-14 02:47:17,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:47:17,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1413882746] [2020-10-14 02:47:17,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:47:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:17,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:17,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:18,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:21,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:21,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-14 02:47:21,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:47:21,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3462 [2020-10-14 02:47:21,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:21,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:21,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:47:21,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-14 02:47:21,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 02:47:21,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:47:21,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:47:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:21,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:21,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:21,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:47:21,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:47:21,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:47:21,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:21,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:21,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:47:21,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:47:21,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:47:21,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:47:21,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:47:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:21,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:21,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:21,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 02:47:21,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:47:21,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 02:47:21,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:21,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:47:21,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:47:21,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 02:47:21,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 02:47:21,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 02:47:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:21,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:21,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:21,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 02:47:21,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:47:21,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 02:47:21,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:21,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:21,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:47:21,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:47:21,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 02:47:21,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:47:21,592 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:47:21,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1413882746] [2020-10-14 02:47:21,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:47:21,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:47:21,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284340214] [2020-10-14 02:47:21,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:47:21,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:47:21,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:47:21,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:47:21,600 INFO L87 Difference]: Start difference. First operand 12450 states and 17349 transitions. Second operand 7 states. [2020-10-14 02:47:40,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:47:40,618 INFO L93 Difference]: Finished difference Result 38628 states and 58598 transitions. [2020-10-14 02:47:40,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:47:40,621 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2020-10-14 02:47:40,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:47:40,807 INFO L225 Difference]: With dead ends: 38628 [2020-10-14 02:47:40,808 INFO L226 Difference]: Without dead ends: 26184 [2020-10-14 02:47:40,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:47:40,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26184 states. [2020-10-14 02:47:41,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26184 to 25915. [2020-10-14 02:47:41,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25915 states. [2020-10-14 02:47:41,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25915 states to 25915 states and 36116 transitions. [2020-10-14 02:47:41,853 INFO L78 Accepts]: Start accepts. Automaton has 25915 states and 36116 transitions. Word has length 191 [2020-10-14 02:47:41,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:47:41,854 INFO L479 AbstractCegarLoop]: Abstraction has 25915 states and 36116 transitions. [2020-10-14 02:47:41,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:47:41,854 INFO L276 IsEmpty]: Start isEmpty. Operand 25915 states and 36116 transitions. [2020-10-14 02:47:41,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-14 02:47:41,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:47:41,862 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:47:41,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 02:47:41,862 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:47:41,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:47:41,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1216299996, now seen corresponding path program 1 times [2020-10-14 02:47:41,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:47:41,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244718458] [2020-10-14 02:47:41,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:47:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:41,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:42,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:42,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:43,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:43,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-14 02:47:43,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:47:43,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1827 [2020-10-14 02:47:43,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:43,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:43,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:47:43,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-10-14 02:47:43,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 02:47:43,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:47:43,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:47:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:43,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:43,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:43,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:47:43,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:47:43,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:47:43,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:43,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:43,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:47:43,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:47:43,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:47:43,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:47:43,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:47:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:43,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:44,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:44,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-14 02:47:44,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:47:44,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-14 02:47:44,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:44,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:44,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:47:44,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:47:44,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-14 02:47:44,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:47:44,186 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:47:44,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244718458] [2020-10-14 02:47:44,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:47:44,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:47:44,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537424450] [2020-10-14 02:47:44,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:47:44,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:47:44,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:47:44,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:47:44,190 INFO L87 Difference]: Start difference. First operand 25915 states and 36116 transitions. Second operand 5 states. [2020-10-14 02:47:57,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:47:57,938 INFO L93 Difference]: Finished difference Result 51059 states and 71607 transitions. [2020-10-14 02:47:57,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:47:57,940 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2020-10-14 02:47:57,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:47:59,081 INFO L225 Difference]: With dead ends: 51059 [2020-10-14 02:47:59,081 INFO L226 Difference]: Without dead ends: 25915 [2020-10-14 02:47:59,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:47:59,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25915 states. [2020-10-14 02:47:59,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25915 to 25915. [2020-10-14 02:47:59,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25915 states. [2020-10-14 02:47:59,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25915 states to 25915 states and 32623 transitions. [2020-10-14 02:47:59,788 INFO L78 Accepts]: Start accepts. Automaton has 25915 states and 32623 transitions. Word has length 194 [2020-10-14 02:47:59,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:47:59,789 INFO L479 AbstractCegarLoop]: Abstraction has 25915 states and 32623 transitions. [2020-10-14 02:47:59,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:47:59,789 INFO L276 IsEmpty]: Start isEmpty. Operand 25915 states and 32623 transitions. [2020-10-14 02:47:59,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-14 02:47:59,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:47:59,797 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:47:59,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 02:47:59,797 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:47:59,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:47:59,798 INFO L82 PathProgramCache]: Analyzing trace with hash 76246849, now seen corresponding path program 1 times [2020-10-14 02:47:59,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:47:59,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471844837] [2020-10-14 02:47:59,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:47:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:59,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:59,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:00,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:00,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:01,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:04,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:48:04,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 02:48:04,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:48:04,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4192 [2020-10-14 02:48:04,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:48:04,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:48:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:48:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-14 02:48:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 02:48:04,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:48:04,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:48:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:48:04,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:04,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:48:04,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:48:04,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:48:04,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:48:04,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:48:04,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:48:04,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:48:04,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:48:04,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:48:04,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:48:04,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:48:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:48:04,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:04,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:48:04,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 02:48:04,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:48:04,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 02:48:04,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:48:04,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:48:04,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:48:04,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:48:04,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 02:48:04,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:48:04,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 02:48:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:48:04,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:04,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:48:04,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 02:48:04,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:48:04,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-14 02:48:04,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:48:04,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:48:04,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:48:04,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:48:04,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 02:48:04,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:48:04,729 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 118 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:48:04,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471844837] [2020-10-14 02:48:04,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:48:04,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:48:04,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064246671] [2020-10-14 02:48:04,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:48:04,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:48:04,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:48:04,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:48:04,733 INFO L87 Difference]: Start difference. First operand 25915 states and 32623 transitions. Second operand 7 states. [2020-10-14 02:48:19,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:48:19,239 INFO L93 Difference]: Finished difference Result 60969 states and 79214 transitions. [2020-10-14 02:48:19,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:48:19,241 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-10-14 02:48:19,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:48:19,384 INFO L225 Difference]: With dead ends: 60969 [2020-10-14 02:48:19,385 INFO L226 Difference]: Without dead ends: 35064 [2020-10-14 02:48:19,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:48:19,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35064 states. [2020-10-14 02:48:19,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35064 to 34977. [2020-10-14 02:48:19,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34977 states. [2020-10-14 02:48:20,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34977 states to 34977 states and 43421 transitions. [2020-10-14 02:48:20,064 INFO L78 Accepts]: Start accepts. Automaton has 34977 states and 43421 transitions. Word has length 208 [2020-10-14 02:48:20,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:48:20,065 INFO L479 AbstractCegarLoop]: Abstraction has 34977 states and 43421 transitions. [2020-10-14 02:48:20,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:48:20,066 INFO L276 IsEmpty]: Start isEmpty. Operand 34977 states and 43421 transitions. [2020-10-14 02:48:20,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-14 02:48:20,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:48:20,072 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:48:20,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 02:48:20,073 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:48:20,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:48:20,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1509484793, now seen corresponding path program 1 times [2020-10-14 02:48:20,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:48:20,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1172369186] [2020-10-14 02:48:20,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:48:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:48:20,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:20,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:21,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:21,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:21,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:25,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:48:25,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 02:48:25,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:48:25,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 02:48:25,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:48:25,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:48:25,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:48:25,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-14 02:48:25,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 02:48:25,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:48:25,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:48:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:48:25,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:25,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:48:25,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:48:25,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:48:25,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:48:25,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:48:25,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:48:25,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:48:25,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:48:25,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:48:25,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:48:25,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:48:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:48:25,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:25,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:48:25,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 02:48:25,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:48:25,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 02:48:25,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:48:25,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:48:25,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:48:25,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:48:25,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 02:48:25,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:48:25,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 02:48:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:48:25,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:25,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:48:25,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 02:48:25,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:48:25,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-14 02:48:25,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:48:25,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:48:25,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:48:25,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:48:25,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 02:48:25,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:48:25,819 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 118 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:48:25,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1172369186] [2020-10-14 02:48:25,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:48:25,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:48:25,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421521357] [2020-10-14 02:48:25,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:48:25,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:48:25,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:48:25,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:48:25,824 INFO L87 Difference]: Start difference. First operand 34977 states and 43421 transitions. Second operand 7 states. [2020-10-14 02:48:53,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:48:53,578 INFO L93 Difference]: Finished difference Result 91200 states and 116141 transitions. [2020-10-14 02:48:53,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:48:53,583 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-10-14 02:48:53,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:48:53,874 INFO L225 Difference]: With dead ends: 91200 [2020-10-14 02:48:53,875 INFO L226 Difference]: Without dead ends: 56229 [2020-10-14 02:48:53,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:48:54,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56229 states. [2020-10-14 02:48:55,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56229 to 56193. [2020-10-14 02:48:55,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56193 states. [2020-10-14 02:48:55,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56193 states to 56193 states and 70211 transitions. [2020-10-14 02:48:55,309 INFO L78 Accepts]: Start accepts. Automaton has 56193 states and 70211 transitions. Word has length 212 [2020-10-14 02:48:55,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:48:55,310 INFO L479 AbstractCegarLoop]: Abstraction has 56193 states and 70211 transitions. [2020-10-14 02:48:55,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:48:55,310 INFO L276 IsEmpty]: Start isEmpty. Operand 56193 states and 70211 transitions. [2020-10-14 02:48:55,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-14 02:48:55,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:48:55,319 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:48:55,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 02:48:55,320 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:48:55,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:48:55,320 INFO L82 PathProgramCache]: Analyzing trace with hash -2129941275, now seen corresponding path program 1 times [2020-10-14 02:48:55,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:48:55,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215944924] [2020-10-14 02:48:55,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:48:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:48:55,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:55,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:56,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:56,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:48:57,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:49:00,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:49:00,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-14 02:49:00,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:49:00,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 02:49:00,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:49:00,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:49:00,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:49:00,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-14 02:49:00,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 02:49:00,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:49:00,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:49:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:49:00,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:49:00,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:49:00,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:49:00,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:49:00,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:49:00,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:49:00,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:49:00,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:49:00,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:49:00,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:49:00,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:49:00,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:49:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:49:00,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:49:00,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:49:00,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 02:49:00,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:49:00,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 02:49:00,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:49:00,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:49:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:49:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:49:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 02:49:00,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:49:00,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 02:49:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:49:00,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:49:00,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:49:00,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 02:49:00,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:49:00,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-14 02:49:00,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:49:00,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:49:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:49:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:49:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 02:49:00,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:49:01,144 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:49:01,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215944924] [2020-10-14 02:49:01,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:49:01,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 02:49:01,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669992744] [2020-10-14 02:49:01,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 02:49:01,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:49:01,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 02:49:01,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 02:49:01,148 INFO L87 Difference]: Start difference. First operand 56193 states and 70211 transitions. Second operand 8 states. [2020-10-14 02:49:32,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:49:32,248 INFO L93 Difference]: Finished difference Result 112412 states and 140702 transitions. [2020-10-14 02:49:32,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 02:49:32,251 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 218 [2020-10-14 02:49:32,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:49:32,478 INFO L225 Difference]: With dead ends: 112412 [2020-10-14 02:49:32,479 INFO L226 Difference]: Without dead ends: 56229 [2020-10-14 02:49:32,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 02:49:32,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56229 states. [2020-10-14 02:49:33,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56229 to 54646. [2020-10-14 02:49:33,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54646 states. [2020-10-14 02:49:33,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54646 states to 54646 states and 64516 transitions. [2020-10-14 02:49:33,717 INFO L78 Accepts]: Start accepts. Automaton has 54646 states and 64516 transitions. Word has length 218 [2020-10-14 02:49:33,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:49:33,718 INFO L479 AbstractCegarLoop]: Abstraction has 54646 states and 64516 transitions. [2020-10-14 02:49:33,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 02:49:33,718 INFO L276 IsEmpty]: Start isEmpty. Operand 54646 states and 64516 transitions. [2020-10-14 02:49:33,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-10-14 02:49:33,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:49:33,733 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:49:33,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 02:49:33,733 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:49:33,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:49:33,734 INFO L82 PathProgramCache]: Analyzing trace with hash -609981812, now seen corresponding path program 1 times [2020-10-14 02:49:33,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:49:33,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926265714] [2020-10-14 02:49:33,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:49:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:49:33,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:49:33,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:49:34,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:49:36,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:49:36,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-14 02:49:36,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:49:36,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2643 [2020-10-14 02:49:36,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:49:36,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:49:36,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:49:36,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-10-14 02:49:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 02:49:36,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:49:36,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:49:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:49:36,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:49:36,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:49:36,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:49:36,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:49:36,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:49:36,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:49:36,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:49:36,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:49:36,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:49:36,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:49:36,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:49:36,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:49:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:49:36,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:49:36,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:49:36,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 02:49:36,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:49:36,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 02:49:36,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:49:36,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:49:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:49:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:49:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-14 02:49:36,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:49:36,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-14 02:49:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:49:36,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:49:36,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:49:36,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 02:49:36,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:49:36,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 02:49:36,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:49:36,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:49:36,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:49:36,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:49:36,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 02:49:36,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:49:37,047 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:49:37,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926265714] [2020-10-14 02:49:37,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:49:37,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:49:37,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393293561] [2020-10-14 02:49:37,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:49:37,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:49:37,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:49:37,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:49:37,050 INFO L87 Difference]: Start difference. First operand 54646 states and 64516 transitions. Second operand 7 states. [2020-10-14 02:49:56,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:49:56,405 INFO L93 Difference]: Finished difference Result 129232 states and 156636 transitions. [2020-10-14 02:49:56,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 02:49:56,407 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 253 [2020-10-14 02:49:56,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:49:56,645 INFO L225 Difference]: With dead ends: 129232 [2020-10-14 02:49:56,645 INFO L226 Difference]: Without dead ends: 69788 [2020-10-14 02:49:56,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:49:56,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69788 states. [2020-10-14 02:49:57,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69788 to 64933. [2020-10-14 02:49:57,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64933 states. [2020-10-14 02:49:57,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64933 states to 64933 states and 74489 transitions. [2020-10-14 02:49:57,854 INFO L78 Accepts]: Start accepts. Automaton has 64933 states and 74489 transitions. Word has length 253 [2020-10-14 02:49:57,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:49:57,855 INFO L479 AbstractCegarLoop]: Abstraction has 64933 states and 74489 transitions. [2020-10-14 02:49:57,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:49:57,856 INFO L276 IsEmpty]: Start isEmpty. Operand 64933 states and 74489 transitions. [2020-10-14 02:49:57,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-10-14 02:49:57,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:49:57,862 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:49:57,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 02:49:57,863 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:49:57,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:49:57,863 INFO L82 PathProgramCache]: Analyzing trace with hash 864259846, now seen corresponding path program 1 times [2020-10-14 02:49:57,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:49:57,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634093107] [2020-10-14 02:49:57,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:49:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:49:57,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:49:58,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:49:59,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:01,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:50:01,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-10-14 02:50:01,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:50:01,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3240 [2020-10-14 02:50:01,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:50:01,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:50:01,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:50:01,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 261 [2020-10-14 02:50:01,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 02:50:01,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:50:01,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:50:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:50:01,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:01,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:50:01,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:50:01,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:50:01,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:50:01,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:50:01,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:50:01,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:50:01,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:50:01,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:50:01,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:50:01,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:50:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:50:01,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:01,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:50:01,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 02:50:01,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:50:01,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 02:50:01,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:50:01,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:50:01,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:50:01,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:50:01,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:50:01,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:50:01,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-14 02:50:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:50:01,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:01,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:50:01,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 02:50:01,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:50:01,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 02:50:01,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:50:01,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:50:01,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:50:01,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:50:01,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 02:50:01,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1