/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/Problem17_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:05:58,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:05:58,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:05:58,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:05:58,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:05:58,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:05:58,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:05:58,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:05:58,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:05:58,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:05:58,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:05:58,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:05:58,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:05:58,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:05:58,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:05:58,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:05:58,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:05:58,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:05:58,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:05:58,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:05:58,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:05:58,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:05:58,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:05:58,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:05:58,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:05:58,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:05:58,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:05:58,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:05:58,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:05:58,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:05:58,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:05:58,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:05:58,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:05:58,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:05:58,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:05:58,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:05:58,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:05:58,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:05:58,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:05:58,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:05:58,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:05:58,302 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 04:05:58,328 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:05:58,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:05:58,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:05:58,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:05:58,330 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:05:58,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:05:58,331 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:05:58,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:05:58,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:05:58,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:05:58,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:05:58,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:05:58,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:05:58,334 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:05:58,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:05:58,335 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:05:58,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:05:58,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:05:58,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:05:58,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:05:58,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:05:58,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:05:58,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:05:58,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:05:58,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:05:58,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:05:58,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:05:58,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:05:58,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:05:58,340 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 04:05:58,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:05:58,714 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:05:58,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:05:58,719 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:05:58,720 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:05:58,721 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label44.c [2020-10-14 04:05:58,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ae896f51/1b6cf23971f44149a822dbb1c445efe6/FLAG8bc95d899 [2020-10-14 04:05:59,618 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:05:59,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem17_label44.c [2020-10-14 04:05:59,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ae896f51/1b6cf23971f44149a822dbb1c445efe6/FLAG8bc95d899 [2020-10-14 04:05:59,745 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ae896f51/1b6cf23971f44149a822dbb1c445efe6 [2020-10-14 04:05:59,756 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:05:59,758 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:05:59,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:05:59,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:05:59,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:05:59,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:05:59" (1/1) ... [2020-10-14 04:05:59,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5728a2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:05:59, skipping insertion in model container [2020-10-14 04:05:59,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:05:59" (1/1) ... [2020-10-14 04:05:59,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:05:59,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:06:01,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:06:01,078 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:06:01,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:06:01,508 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:06:01,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:01 WrapperNode [2020-10-14 04:06:01,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:06:01,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:06:01,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:06:01,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:06:01,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:01" (1/1) ... [2020-10-14 04:06:01,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:01" (1/1) ... [2020-10-14 04:06:01,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:01" (1/1) ... [2020-10-14 04:06:01,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:01" (1/1) ... [2020-10-14 04:06:01,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:01" (1/1) ... [2020-10-14 04:06:01,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:01" (1/1) ... [2020-10-14 04:06:01,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:01" (1/1) ... [2020-10-14 04:06:01,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:06:01,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:06:01,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:06:01,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:06:01,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:01" (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 04:06:01,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:06:01,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:06:01,913 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 04:06:01,914 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 04:06:01,914 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:06:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 04:06:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 04:06:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:06:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:06:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:06:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:06:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:06:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:06:10,737 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:06:10,738 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 04:06:10,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:06:10 BoogieIcfgContainer [2020-10-14 04:06:10,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:06:10,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:06:10,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:06:10,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:06:10,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:05:59" (1/3) ... [2020-10-14 04:06:10,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1afd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:06:10, skipping insertion in model container [2020-10-14 04:06:10,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:06:01" (2/3) ... [2020-10-14 04:06:10,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1afd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:06:10, skipping insertion in model container [2020-10-14 04:06:10,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:06:10" (3/3) ... [2020-10-14 04:06:10,756 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem17_label44.c [2020-10-14 04:06:10,766 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:06:10,774 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:06:10,789 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:06:10,818 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:06:10,818 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:06:10,818 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:06:10,818 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:06:10,818 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:06:10,819 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:06:10,819 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:06:10,819 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:06:10,851 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states. [2020-10-14 04:06:10,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-14 04:06:10,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:06:10,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:06:10,860 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:06:10,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:06:10,867 INFO L82 PathProgramCache]: Analyzing trace with hash -281563599, now seen corresponding path program 1 times [2020-10-14 04:06:10,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:06:10,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642337704] [2020-10-14 04:06:10,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:06:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:11,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:11,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:11,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 04:06:11,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:11,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 539 [2020-10-14 04:06:11,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:11,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:11,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:06:11,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:06:11,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 04:06:11,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:06:11,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:06:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:11,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:11,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:11,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:06:11,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:11,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 04:06:11,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:11,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:11,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:06:11,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:11,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:06:11,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:06:11,828 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 04:06:11,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642337704] [2020-10-14 04:06:11,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:06:11,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 04:06:11,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922575857] [2020-10-14 04:06:11,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:06:11,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:06:11,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:06:11,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:06:11,866 INFO L87 Difference]: Start difference. First operand 603 states. Second operand 4 states. [2020-10-14 04:06:22,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:06:22,174 INFO L93 Difference]: Finished difference Result 1690 states and 3086 transitions. [2020-10-14 04:06:22,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:06:22,177 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-10-14 04:06:22,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:06:22,201 INFO L225 Difference]: With dead ends: 1690 [2020-10-14 04:06:22,201 INFO L226 Difference]: Without dead ends: 1010 [2020-10-14 04:06:22,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:06:22,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2020-10-14 04:06:22,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 1003. [2020-10-14 04:06:22,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2020-10-14 04:06:22,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1499 transitions. [2020-10-14 04:06:22,333 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1499 transitions. Word has length 41 [2020-10-14 04:06:22,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:06:22,334 INFO L479 AbstractCegarLoop]: Abstraction has 1003 states and 1499 transitions. [2020-10-14 04:06:22,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:06:22,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1499 transitions. [2020-10-14 04:06:22,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-14 04:06:22,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:06:22,342 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:06:22,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:06:22,344 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:06:22,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:06:22,345 INFO L82 PathProgramCache]: Analyzing trace with hash 323449881, now seen corresponding path program 1 times [2020-10-14 04:06:22,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:06:22,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583679275] [2020-10-14 04:06:22,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:06:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:22,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:22,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:23,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:23,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 04:06:23,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:06:23,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1273 [2020-10-14 04:06:23,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:23,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:23,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:06:23,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 04:06:23,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 04:06:23,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:06:23,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:06:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:23,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:23,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:23,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:06:23,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:23,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:06:23,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:23,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:06:23,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:23,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:06:23,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:23,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:06:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:23,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:23,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:23,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:06:23,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:23,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 04:06:23,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:23,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:23,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:06:23,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:23,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 04:06:23,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:24,014 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:06:24,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1583679275] [2020-10-14 04:06:24,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:06:24,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:06:24,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035112430] [2020-10-14 04:06:24,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:06:24,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:06:24,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:06:24,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:06:24,018 INFO L87 Difference]: Start difference. First operand 1003 states and 1499 transitions. Second operand 5 states. [2020-10-14 04:06:33,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:06:33,448 INFO L93 Difference]: Finished difference Result 2905 states and 4385 transitions. [2020-10-14 04:06:33,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:06:33,449 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2020-10-14 04:06:33,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:06:33,462 INFO L225 Difference]: With dead ends: 2905 [2020-10-14 04:06:33,462 INFO L226 Difference]: Without dead ends: 1908 [2020-10-14 04:06:33,465 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 04:06:33,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2020-10-14 04:06:33,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1898. [2020-10-14 04:06:33,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1898 states. [2020-10-14 04:06:33,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2587 transitions. [2020-10-14 04:06:33,543 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2587 transitions. Word has length 115 [2020-10-14 04:06:33,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:06:33,545 INFO L479 AbstractCegarLoop]: Abstraction has 1898 states and 2587 transitions. [2020-10-14 04:06:33,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:06:33,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2587 transitions. [2020-10-14 04:06:33,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-14 04:06:33,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:06:33,556 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:06:33,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:06:33,557 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:06:33,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:06:33,557 INFO L82 PathProgramCache]: Analyzing trace with hash 899663180, now seen corresponding path program 1 times [2020-10-14 04:06:33,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:06:33,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006102090] [2020-10-14 04:06:33,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:06:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:33,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:33,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:33,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:34,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:35,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:35,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:35,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-14 04:06:35,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:06:35,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2034 [2020-10-14 04:06:35,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:35,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:35,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:06:35,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-14 04:06:35,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:06:35,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:35,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:06:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:35,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:35,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:35,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:06:35,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:35,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:06:35,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:35,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:35,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:06:35,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:35,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:06:35,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:35,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:06:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:35,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:35,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:35,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 04:06:35,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:35,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 04:06:35,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:35,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:35,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:06:35,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-14 04:06:35,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:06:35,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:35,940 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:06:35,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006102090] [2020-10-14 04:06:35,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:06:35,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 04:06:35,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922287338] [2020-10-14 04:06:35,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:06:35,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:06:35,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:06:35,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:06:35,946 INFO L87 Difference]: Start difference. First operand 1898 states and 2587 transitions. Second operand 5 states. [2020-10-14 04:06:48,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:06:48,513 INFO L93 Difference]: Finished difference Result 4236 states and 6003 transitions. [2020-10-14 04:06:48,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:06:48,514 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2020-10-14 04:06:48,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:06:48,529 INFO L225 Difference]: With dead ends: 4236 [2020-10-14 04:06:48,529 INFO L226 Difference]: Without dead ends: 2344 [2020-10-14 04:06:48,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:06:48,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2344 states. [2020-10-14 04:06:48,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2344 to 1903. [2020-10-14 04:06:48,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1903 states. [2020-10-14 04:06:48,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2591 transitions. [2020-10-14 04:06:48,600 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 2591 transitions. Word has length 137 [2020-10-14 04:06:48,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:06:48,601 INFO L479 AbstractCegarLoop]: Abstraction has 1903 states and 2591 transitions. [2020-10-14 04:06:48,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:06:48,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 2591 transitions. [2020-10-14 04:06:48,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-14 04:06:48,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:06:48,608 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:06:48,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:06:48,609 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:06:48,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:06:48,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1587848282, now seen corresponding path program 1 times [2020-10-14 04:06:48,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:06:48,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520016166] [2020-10-14 04:06:48,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:06:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:48,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:48,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:50,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:50,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 04:06:50,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:06:50,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2020 [2020-10-14 04:06:50,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:50,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:50,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:06:50,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-14 04:06:50,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 04:06:50,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:50,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:06:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:50,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:50,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:50,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:06:50,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:50,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:06:50,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:50,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:50,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:06:50,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:50,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:06:50,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:50,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:06:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:50,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:50,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:50,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 04:06:50,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:50,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 04:06:50,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:50,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:06:50,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:50,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 04:06:50,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:06:50,990 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:06:50,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520016166] [2020-10-14 04:06:50,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:06:50,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:06:50,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191044308] [2020-10-14 04:06:50,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:06:50,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:06:50,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:06:50,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:06:50,996 INFO L87 Difference]: Start difference. First operand 1903 states and 2591 transitions. Second operand 5 states. [2020-10-14 04:07:00,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:07:00,912 INFO L93 Difference]: Finished difference Result 5571 states and 7686 transitions. [2020-10-14 04:07:00,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:07:00,913 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2020-10-14 04:07:00,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:07:00,935 INFO L225 Difference]: With dead ends: 5571 [2020-10-14 04:07:00,935 INFO L226 Difference]: Without dead ends: 3674 [2020-10-14 04:07:00,942 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 04:07:00,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2020-10-14 04:07:01,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3666. [2020-10-14 04:07:01,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3666 states. [2020-10-14 04:07:01,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 4774 transitions. [2020-10-14 04:07:01,056 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 4774 transitions. Word has length 150 [2020-10-14 04:07:01,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:07:01,057 INFO L479 AbstractCegarLoop]: Abstraction has 3666 states and 4774 transitions. [2020-10-14 04:07:01,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:07:01,058 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 4774 transitions. [2020-10-14 04:07:01,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-14 04:07:01,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:07:01,063 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:01,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:07:01,063 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:07:01,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:07:01,064 INFO L82 PathProgramCache]: Analyzing trace with hash 447810058, now seen corresponding path program 1 times [2020-10-14 04:07:01,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:07:01,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965874294] [2020-10-14 04:07:01,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:07:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:07:01,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:01,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:01,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:02,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:02,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:07:02,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-14 04:07:02,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:07:02,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1825 [2020-10-14 04:07:02,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:07:02,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:07:02,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:07:02,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-14 04:07:02,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:07:02,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:07:02,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:07:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:07:02,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:02,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:07:02,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:07:02,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:07:02,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:07:02,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:07:02,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:07:02,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:07:02,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:07:02,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:07:02,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:07:03,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:07:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:07:03,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:03,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:07:03,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 04:07:03,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:07:03,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 04:07:03,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:07:03,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:07:03,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:07:03,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-14 04:07:03,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:07:03,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:07:03,330 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:07:03,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965874294] [2020-10-14 04:07:03,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:07:03,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 04:07:03,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753311633] [2020-10-14 04:07:03,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:07:03,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:07:03,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:07:03,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:07:03,332 INFO L87 Difference]: Start difference. First operand 3666 states and 4774 transitions. Second operand 5 states. [2020-10-14 04:07:14,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:07:14,597 INFO L93 Difference]: Finished difference Result 9085 states and 12095 transitions. [2020-10-14 04:07:14,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:07:14,601 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 174 [2020-10-14 04:07:14,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:07:14,626 INFO L225 Difference]: With dead ends: 9085 [2020-10-14 04:07:14,626 INFO L226 Difference]: Without dead ends: 5425 [2020-10-14 04:07:14,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:07:14,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5425 states. [2020-10-14 04:07:14,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5425 to 5417. [2020-10-14 04:07:14,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5417 states. [2020-10-14 04:07:14,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5417 states to 5417 states and 6890 transitions. [2020-10-14 04:07:14,758 INFO L78 Accepts]: Start accepts. Automaton has 5417 states and 6890 transitions. Word has length 174 [2020-10-14 04:07:14,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:07:14,758 INFO L479 AbstractCegarLoop]: Abstraction has 5417 states and 6890 transitions. [2020-10-14 04:07:14,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:07:14,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5417 states and 6890 transitions. [2020-10-14 04:07:14,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-14 04:07:14,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:07:14,762 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:14,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:07:14,763 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:07:14,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:07:14,763 INFO L82 PathProgramCache]: Analyzing trace with hash -766727992, now seen corresponding path program 1 times [2020-10-14 04:07:14,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:07:14,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [454187177] [2020-10-14 04:07:14,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:07:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:07:14,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:14,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:15,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:16,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:07:16,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-14 04:07:16,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:07:16,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1848 [2020-10-14 04:07:16,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:07:16,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:07:16,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:07:16,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-14 04:07:16,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 04:07:16,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:07:16,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:07:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:07:16,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:16,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:07:16,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:07:16,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:07:16,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:07:16,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:07:16,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:07:16,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:07:16,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:07:16,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:07:16,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:07:16,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:07:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:07:16,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:16,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:07:16,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-14 04:07:16,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:07:16,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-14 04:07:16,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:07:16,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:07:16,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:07:16,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:07:16,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 04:07:16,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:07:17,012 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:07:17,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [454187177] [2020-10-14 04:07:17,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:07:17,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:07:17,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804115789] [2020-10-14 04:07:17,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:07:17,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:07:17,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:07:17,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:07:17,015 INFO L87 Difference]: Start difference. First operand 5417 states and 6890 transitions. Second operand 5 states. [2020-10-14 04:07:36,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:07:36,836 INFO L93 Difference]: Finished difference Result 13480 states and 17675 transitions. [2020-10-14 04:07:36,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:07:36,839 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 182 [2020-10-14 04:07:36,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:07:36,873 INFO L225 Difference]: With dead ends: 13480 [2020-10-14 04:07:36,874 INFO L226 Difference]: Without dead ends: 8069 [2020-10-14 04:07:36,888 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 04:07:36,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8069 states. [2020-10-14 04:07:37,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8069 to 8042. [2020-10-14 04:07:37,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8042 states. [2020-10-14 04:07:37,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8042 states to 8042 states and 10143 transitions. [2020-10-14 04:07:37,092 INFO L78 Accepts]: Start accepts. Automaton has 8042 states and 10143 transitions. Word has length 182 [2020-10-14 04:07:37,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:07:37,093 INFO L479 AbstractCegarLoop]: Abstraction has 8042 states and 10143 transitions. [2020-10-14 04:07:37,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:07:37,094 INFO L276 IsEmpty]: Start isEmpty. Operand 8042 states and 10143 transitions. [2020-10-14 04:07:37,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-14 04:07:37,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:07:37,098 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:07:37,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:07:37,099 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:07:37,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:07:37,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1320635367, now seen corresponding path program 1 times [2020-10-14 04:07:37,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:07:37,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1701347683] [2020-10-14 04:07:37,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:07:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:07:37,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:37,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:37,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:38,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:39,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:42,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:07:42,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 04:07:42,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:07:42,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 04:07:42,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:07:42,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:07:42,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:07:42,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 04:07:42,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 04:07:42,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:07:42,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:07:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:07:42,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:42,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:07:42,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:07:42,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:07:42,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:07:42,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:07:42,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:07:42,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:07:42,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:07:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:07:42,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:07:42,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:07:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:07:42,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:42,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:07:42,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:07:42,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:07:42,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 04:07:42,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:07:42,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:07:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:07:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:07:42,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 04:07:42,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:07:42,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 04:07:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:07:42,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:07:42,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:07:42,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 04:07:42,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:07:42,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 04:07:42,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:07:42,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:07:42,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:07:42,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:07:42,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 04:07:42,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:07:42,880 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 139 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:07:42,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1701347683] [2020-10-14 04:07:42,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:07:42,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:07:42,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78777059] [2020-10-14 04:07:42,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:07:42,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:07:42,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:07:42,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:07:42,885 INFO L87 Difference]: Start difference. First operand 8042 states and 10143 transitions. Second operand 7 states. [2020-10-14 04:08:00,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:08:00,796 INFO L93 Difference]: Finished difference Result 15267 states and 19706 transitions. [2020-10-14 04:08:00,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:08:00,799 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-10-14 04:08:00,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:08:00,845 INFO L225 Difference]: With dead ends: 15267 [2020-10-14 04:08:00,845 INFO L226 Difference]: Without dead ends: 6342 [2020-10-14 04:08:00,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:08:00,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6342 states. [2020-10-14 04:08:01,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6342 to 5901. [2020-10-14 04:08:01,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5901 states. [2020-10-14 04:08:01,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5901 states to 5901 states and 6961 transitions. [2020-10-14 04:08:01,032 INFO L78 Accepts]: Start accepts. Automaton has 5901 states and 6961 transitions. Word has length 190 [2020-10-14 04:08:01,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:08:01,033 INFO L479 AbstractCegarLoop]: Abstraction has 5901 states and 6961 transitions. [2020-10-14 04:08:01,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:08:01,033 INFO L276 IsEmpty]: Start isEmpty. Operand 5901 states and 6961 transitions. [2020-10-14 04:08:01,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-14 04:08:01,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:08:01,036 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 04:08:01,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:08:01,037 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:08:01,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:08:01,037 INFO L82 PathProgramCache]: Analyzing trace with hash -108493735, now seen corresponding path program 1 times [2020-10-14 04:08:01,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:08:01,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127890483] [2020-10-14 04:08:01,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:08:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:08:01,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:01,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:01,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:02,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:06,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:08:06,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-14 04:08:06,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:08:06,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 04:08:06,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:08:06,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:08:06,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:08:06,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-10-14 04:08:06,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 04:08:06,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:08:06,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:08:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:08:06,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:06,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:08:06,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:08:06,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:08:06,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:08:06,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:08:06,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:08:06,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:08:06,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:08:06,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:08:06,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:08:06,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:08:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:08:06,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:06,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:08:06,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:08:06,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:08:06,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 04:08:06,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:08:06,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:08:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:08:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:08:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:08:06,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:08:06,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:08:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:08:06,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:06,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:08:06,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 04:08:06,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:08:06,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 04:08:06,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:08:06,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:08:06,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:08:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:08:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 04:08:06,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:08:06,478 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-14 04:08:06,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127890483] [2020-10-14 04:08:06,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:08:06,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:08:06,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814084955] [2020-10-14 04:08:06,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:08:06,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:08:06,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:08:06,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:08:06,481 INFO L87 Difference]: Start difference. First operand 5901 states and 6961 transitions. Second operand 5 states. [2020-10-14 04:08:20,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:08:20,327 INFO L93 Difference]: Finished difference Result 14418 states and 17097 transitions. [2020-10-14 04:08:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:08:20,329 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 203 [2020-10-14 04:08:20,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:08:20,359 INFO L225 Difference]: With dead ends: 14418 [2020-10-14 04:08:20,360 INFO L226 Difference]: Without dead ends: 8522 [2020-10-14 04:08:20,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 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 04:08:20,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8522 states. [2020-10-14 04:08:20,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8522 to 7648. [2020-10-14 04:08:20,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7648 states. [2020-10-14 04:08:20,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7648 states to 7648 states and 8902 transitions. [2020-10-14 04:08:20,606 INFO L78 Accepts]: Start accepts. Automaton has 7648 states and 8902 transitions. Word has length 203 [2020-10-14 04:08:20,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:08:20,607 INFO L479 AbstractCegarLoop]: Abstraction has 7648 states and 8902 transitions. [2020-10-14 04:08:20,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:08:20,607 INFO L276 IsEmpty]: Start isEmpty. Operand 7648 states and 8902 transitions. [2020-10-14 04:08:20,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-14 04:08:20,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:08:20,611 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:08:20,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:08:20,612 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:08:20,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:08:20,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1525388046, now seen corresponding path program 1 times [2020-10-14 04:08:20,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:08:20,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291672705] [2020-10-14 04:08:20,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:08:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:08:20,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:20,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:20,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:25,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:08:25,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 04:08:25,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:08:25,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 04:08:25,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:08:25,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:08:25,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:08:25,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-14 04:08:25,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 04:08:25,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:08:25,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:08:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:08:25,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:25,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:08:25,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:08:25,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:08:25,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:08:25,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:08:25,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:08:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:08:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:08:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:08:25,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:08:25,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:08:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:08:25,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:25,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:08:25,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:08:25,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:08:25,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 04:08:25,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:08:25,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:08:25,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:08:25,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:08:25,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:08:25,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:08:25,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:08:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:08:26,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:26,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:08:26,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 04:08:26,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:08:26,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 04:08:26,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:08:26,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:08:26,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:08:26,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:08:26,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 04:08:26,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:08:26,154 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-14 04:08:26,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291672705] [2020-10-14 04:08:26,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:08:26,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:08:26,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904370723] [2020-10-14 04:08:26,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:08:26,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:08:26,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:08:26,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:08:26,173 INFO L87 Difference]: Start difference. First operand 7648 states and 8902 transitions. Second operand 5 states. [2020-10-14 04:08:36,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:08:36,517 INFO L93 Difference]: Finished difference Result 20156 states and 23943 transitions. [2020-10-14 04:08:36,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:08:36,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 214 [2020-10-14 04:08:36,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:08:36,564 INFO L225 Difference]: With dead ends: 20156 [2020-10-14 04:08:36,564 INFO L226 Difference]: Without dead ends: 12514 [2020-10-14 04:08:36,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 04:08:36,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12514 states. [2020-10-14 04:08:36,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12514 to 11188. [2020-10-14 04:08:36,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11188 states. [2020-10-14 04:08:36,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11188 states to 11188 states and 13282 transitions. [2020-10-14 04:08:36,817 INFO L78 Accepts]: Start accepts. Automaton has 11188 states and 13282 transitions. Word has length 214 [2020-10-14 04:08:36,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:08:36,818 INFO L479 AbstractCegarLoop]: Abstraction has 11188 states and 13282 transitions. [2020-10-14 04:08:36,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:08:36,818 INFO L276 IsEmpty]: Start isEmpty. Operand 11188 states and 13282 transitions. [2020-10-14 04:08:36,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-10-14 04:08:36,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:08:36,827 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:08:36,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:08:36,827 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:08:36,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:08:36,828 INFO L82 PathProgramCache]: Analyzing trace with hash -45632054, now seen corresponding path program 1 times [2020-10-14 04:08:36,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:08:36,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [638735699] [2020-10-14 04:08:36,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:08:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:08:36,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:37,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:37,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:39,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:39,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:08:39,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-10-14 04:08:39,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:08:39,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3023 [2020-10-14 04:08:39,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:08:39,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:08:39,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:08:39,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-14 04:08:39,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 04:08:39,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:08:40,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:08:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:08:40,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:40,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:08:40,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:08:40,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:08:40,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:08:40,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:08:40,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:08:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:08:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:08:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:08:40,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:08:40,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:08:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:08:40,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:40,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:08:40,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:08:40,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:08:40,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 04:08:40,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:08:40,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:08:40,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:08:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:08:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:08:40,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:08:40,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:08:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:08:40,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:40,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:08:40,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 04:08:40,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:08:40,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 04:08:40,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:08:40,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:08:40,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:08:40,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:08:40,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 04:08:40,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:08:40,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-14 04:08:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:08:40,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:40,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:08:40,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:08:40,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:08:40,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 04:08:40,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:08:40,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:08:40,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:08:40,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:08:40,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 04:08:40,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:08:40,468 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 243 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-14 04:08:40,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [638735699] [2020-10-14 04:08:40,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:08:40,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:08:40,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863815352] [2020-10-14 04:08:40,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:08:40,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:08:40,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:08:40,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:08:40,470 INFO L87 Difference]: Start difference. First operand 11188 states and 13282 transitions. Second operand 7 states. [2020-10-14 04:08:58,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:08:58,241 INFO L93 Difference]: Finished difference Result 27485 states and 33501 transitions. [2020-10-14 04:08:58,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:08:58,245 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 285 [2020-10-14 04:08:58,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:08:58,301 INFO L225 Difference]: With dead ends: 27485 [2020-10-14 04:08:58,302 INFO L226 Difference]: Without dead ends: 15354 [2020-10-14 04:08:58,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 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 04:08:58,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15354 states. [2020-10-14 04:08:58,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15354 to 13583. [2020-10-14 04:08:58,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13583 states. [2020-10-14 04:08:58,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13583 states to 13583 states and 16254 transitions. [2020-10-14 04:08:58,633 INFO L78 Accepts]: Start accepts. Automaton has 13583 states and 16254 transitions. Word has length 285 [2020-10-14 04:08:58,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:08:58,634 INFO L479 AbstractCegarLoop]: Abstraction has 13583 states and 16254 transitions. [2020-10-14 04:08:58,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:08:58,634 INFO L276 IsEmpty]: Start isEmpty. Operand 13583 states and 16254 transitions. [2020-10-14 04:08:58,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-14 04:08:58,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:08:58,643 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:08:58,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:08:58,643 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:08:58,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:08:58,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1475684172, now seen corresponding path program 1 times [2020-10-14 04:08:58,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:08:58,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870243353] [2020-10-14 04:08:58,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:08:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:08:58,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:58,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:08:59,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:02,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:09:02,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-14 04:09:02,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:09:02,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3652 [2020-10-14 04:09:02,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:09:02,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:09:02,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:09:02,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-14 04:09:02,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 04:09:02,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:09:02,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:09:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:09:02,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:02,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:09:02,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:09:02,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:09:02,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:09:02,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:09:02,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:09:02,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:09:02,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:09:02,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:09:02,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:09:02,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:09:02,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:09:02,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:02,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:09:02,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:09:02,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:09:02,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 04:09:02,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:09:02,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:09:02,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:09:02,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:09:02,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 04:09:02,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:09:02,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:09:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:09:02,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:02,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:09:02,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 04:09:02,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:09:02,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-14 04:09:02,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:09:02,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:09:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:09:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:09:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 04:09:02,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:09:03,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-14 04:09:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:09:03,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:03,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:09:03,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:09:03,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:09:03,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 04:09:03,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:09:03,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:09:03,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:09:03,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 04:09:03,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:09:03,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:09:03,274 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 190 proven. 70 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-14 04:09:03,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870243353] [2020-10-14 04:09:03,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:09:03,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:09:03,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71485192] [2020-10-14 04:09:03,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:09:03,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:09:03,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:09:03,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:09:03,277 INFO L87 Difference]: Start difference. First operand 13583 states and 16254 transitions. Second operand 7 states. [2020-10-14 04:09:20,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:09:20,440 INFO L93 Difference]: Finished difference Result 29884 states and 35679 transitions. [2020-10-14 04:09:20,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:09:20,444 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 308 [2020-10-14 04:09:20,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:09:20,499 INFO L225 Difference]: With dead ends: 29884 [2020-10-14 04:09:20,499 INFO L226 Difference]: Without dead ends: 16307 [2020-10-14 04:09:20,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:09:20,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16307 states. [2020-10-14 04:09:20,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16307 to 16272. [2020-10-14 04:09:20,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16272 states. [2020-10-14 04:09:20,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16272 states to 16272 states and 19322 transitions. [2020-10-14 04:09:20,870 INFO L78 Accepts]: Start accepts. Automaton has 16272 states and 19322 transitions. Word has length 308 [2020-10-14 04:09:20,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:09:20,871 INFO L479 AbstractCegarLoop]: Abstraction has 16272 states and 19322 transitions. [2020-10-14 04:09:20,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:09:20,871 INFO L276 IsEmpty]: Start isEmpty. Operand 16272 states and 19322 transitions. [2020-10-14 04:09:20,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-14 04:09:20,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:09:20,886 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:09:20,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:09:20,887 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:09:20,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:09:20,888 INFO L82 PathProgramCache]: Analyzing trace with hash -278076455, now seen corresponding path program 1 times [2020-10-14 04:09:20,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:09:20,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15062497] [2020-10-14 04:09:20,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:09:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:09:21,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:21,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:21,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:21,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:21,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:22,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:22,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:24,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:09:24,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 348 [2020-10-14 04:09:24,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 04:09:24,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3455 [2020-10-14 04:09:24,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:09:24,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:09:24,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:09:24,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:09:24,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 229 [2020-10-14 04:09:24,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:09:24,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:09:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:09:24,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:24,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:09:24,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:09:24,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:09:24,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:09:24,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:09:24,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:09:24,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:09:24,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:09:24,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:09:24,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:09:24,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:09:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:09:24,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:24,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:09:24,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:09:24,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:09:24,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 04:09:24,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:09:24,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:09:24,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:09:24,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:09:24,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 04:09:24,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:09:24,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:09:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:09:24,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:24,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:24,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:09:24,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 04:09:24,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:09:24,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 04:09:24,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:09:24,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:09:24,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:09:24,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-10-14 04:09:24,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:09:24,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:09:24,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-14 04:09:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:09:24,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:24,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:09:24,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:09:24,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:09:24,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 04:09:24,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:09:24,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:09:24,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:09:24,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 04:09:24,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:09:24,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:09:25,079 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 04:09:25,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15062497] [2020-10-14 04:09:25,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:09:25,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 04:09:25,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302333632] [2020-10-14 04:09:25,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:09:25,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:09:25,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:09:25,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:09:25,081 INFO L87 Difference]: Start difference. First operand 16272 states and 19322 transitions. Second operand 6 states. [2020-10-14 04:09:38,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:09:38,654 INFO L93 Difference]: Finished difference Result 32533 states and 38707 transitions. [2020-10-14 04:09:38,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:09:38,656 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 334 [2020-10-14 04:09:38,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:09:38,713 INFO L225 Difference]: With dead ends: 32533 [2020-10-14 04:09:38,713 INFO L226 Difference]: Without dead ends: 16266 [2020-10-14 04:09:38,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:09:38,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16266 states. [2020-10-14 04:09:39,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16266 to 16248. [2020-10-14 04:09:39,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16248 states. [2020-10-14 04:09:39,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16248 states to 16248 states and 19250 transitions. [2020-10-14 04:09:39,063 INFO L78 Accepts]: Start accepts. Automaton has 16248 states and 19250 transitions. Word has length 334 [2020-10-14 04:09:39,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:09:39,064 INFO L479 AbstractCegarLoop]: Abstraction has 16248 states and 19250 transitions. [2020-10-14 04:09:39,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:09:39,064 INFO L276 IsEmpty]: Start isEmpty. Operand 16248 states and 19250 transitions. [2020-10-14 04:09:39,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2020-10-14 04:09:39,080 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:09:39,080 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:09:39,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 04:09:39,081 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:09:39,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:09:39,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1347546589, now seen corresponding path program 1 times [2020-10-14 04:09:39,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:09:39,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777767391] [2020-10-14 04:09:39,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:09:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:09:39,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:39,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:40,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:41,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:41,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:44,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:09:44,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 378 [2020-10-14 04:09:44,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:09:44,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 04:09:44,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:09:44,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:09:44,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:09:44,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 262 [2020-10-14 04:09:44,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 04:09:44,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:09:44,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:09:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:09:44,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:44,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:09:44,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:09:44,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:09:44,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:09:44,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:09:44,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:09:44,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:09:44,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:09:44,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:09:44,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:09:44,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:09:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:09:44,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:44,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:09:44,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:09:44,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:09:44,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 04:09:44,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:09:44,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:09:44,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:09:44,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:09:44,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:09:44,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:09:44,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:09:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:09:44,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:09:44,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:09:44,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 04:09:44,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:09:44,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 04:09:44,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:09:44,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:09:44,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:09:44,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:09:44,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 04:09:44,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:09:44,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-10-14 04:09:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:09:44,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking...