/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label48.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:04:37,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:04:37,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:04:37,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:04:37,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:04:37,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:04:37,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:04:37,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:04:37,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:04:37,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:04:37,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:04:37,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:04:37,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:04:37,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:04:37,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:04:37,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:04:37,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:04:37,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:04:37,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:04:37,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:04:37,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:04:37,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:04:37,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:04:37,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:04:37,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:04:37,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:04:37,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:04:37,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:04:37,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:04:37,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:04:37,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:04:37,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:04:37,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:04:37,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:04:37,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:04:37,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:04:37,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:04:37,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:04:37,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:04:37,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:04:37,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:04:37,990 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 22:04:38,028 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:04:38,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:04:38,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:04:38,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:04:38,030 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:04:38,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:04:38,031 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:04:38,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:04:38,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:04:38,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:04:38,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:04:38,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:04:38,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:04:38,033 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:04:38,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:04:38,033 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:04:38,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:04:38,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:04:38,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:04:38,034 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:04:38,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:04:38,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:04:38,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:04:38,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:04:38,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:04:38,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:04:38,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:04:38,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:04:38,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:04:38,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:04:38,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:04:38,352 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:04:38,355 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:04:38,356 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:04:38,357 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:04:38,357 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label48.c [2020-10-14 22:04:38,432 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/239870922/dc6378e462b649729dd55be6bf659288/FLAGf1d1c3a86 [2020-10-14 22:04:39,126 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:04:39,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem15_label48.c [2020-10-14 22:04:39,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/239870922/dc6378e462b649729dd55be6bf659288/FLAGf1d1c3a86 [2020-10-14 22:04:39,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/239870922/dc6378e462b649729dd55be6bf659288 [2020-10-14 22:04:39,281 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:04:39,283 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:04:39,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:04:39,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:04:39,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:04:39,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:04:39" (1/1) ... [2020-10-14 22:04:39,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722dc2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:04:39, skipping insertion in model container [2020-10-14 22:04:39,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:04:39" (1/1) ... [2020-10-14 22:04:39,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:04:39,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:04:40,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:04:40,313 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:04:40,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:04:40,691 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:04:40,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:04:40 WrapperNode [2020-10-14 22:04:40,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:04:40,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:04:40,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:04:40,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:04:40,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:04:40" (1/1) ... [2020-10-14 22:04:40,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:04:40" (1/1) ... [2020-10-14 22:04:40,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:04:40" (1/1) ... [2020-10-14 22:04:40,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:04:40" (1/1) ... [2020-10-14 22:04:40,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:04:40" (1/1) ... [2020-10-14 22:04:40,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:04:40" (1/1) ... [2020-10-14 22:04:40,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:04:40" (1/1) ... [2020-10-14 22:04:40,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:04:40,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:04:40,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:04:40,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:04:40,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:04:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:04:41,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:04:41,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:04:41,001 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:04:41,001 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:04:41,001 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:04:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:04:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:04:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:04:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:04:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:04:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:04:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:04:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:04:46,802 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:04:46,803 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:04:46,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:04:46 BoogieIcfgContainer [2020-10-14 22:04:46,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:04:46,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:04:46,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:04:46,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:04:46,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:04:39" (1/3) ... [2020-10-14 22:04:46,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204684d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:04:46, skipping insertion in model container [2020-10-14 22:04:46,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:04:40" (2/3) ... [2020-10-14 22:04:46,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204684d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:04:46, skipping insertion in model container [2020-10-14 22:04:46,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:04:46" (3/3) ... [2020-10-14 22:04:46,818 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label48.c [2020-10-14 22:04:46,828 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:04:46,836 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:04:46,850 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:04:46,875 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:04:46,875 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:04:46,875 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:04:46,876 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:04:46,876 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:04:46,876 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:04:46,876 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:04:46,876 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:04:46,901 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states. [2020-10-14 22:04:46,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-14 22:04:46,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:04:46,909 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] [2020-10-14 22:04:46,910 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:04:46,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:04:46,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1735320205, now seen corresponding path program 1 times [2020-10-14 22:04:46,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:04:46,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266059521] [2020-10-14 22:04:46,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:04:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:47,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:47,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:47,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 22:04:47,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:04:47,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-10-14 22:04:47,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:47,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:47,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:04:47,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:04:47,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 22:04:47,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:04:47,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:04:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:47,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:47,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:47,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:04:47,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:04:47,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:04:47,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:47,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:04:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:04:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:04:47,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:04:47,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:04:47,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1266059521] [2020-10-14 22:04:47,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:04:47,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:04:47,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288959293] [2020-10-14 22:04:47,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:04:47,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:04:47,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:04:47,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:04:47,642 INFO L87 Difference]: Start difference. First operand 437 states. Second operand 4 states. [2020-10-14 22:04:55,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:04:55,534 INFO L93 Difference]: Finished difference Result 1198 states and 2162 transitions. [2020-10-14 22:04:55,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:04:55,535 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-14 22:04:55,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:04:55,556 INFO L225 Difference]: With dead ends: 1198 [2020-10-14 22:04:55,556 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 22:04:55,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:04:55,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 22:04:55,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 688. [2020-10-14 22:04:55,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2020-10-14 22:04:55,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1008 transitions. [2020-10-14 22:04:55,663 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1008 transitions. Word has length 33 [2020-10-14 22:04:55,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:04:55,663 INFO L479 AbstractCegarLoop]: Abstraction has 688 states and 1008 transitions. [2020-10-14 22:04:55,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:04:55,664 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1008 transitions. [2020-10-14 22:04:55,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 22:04:55,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:04:55,669 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:04:55,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:04:55,670 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:04:55,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:04:55,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1696141066, now seen corresponding path program 1 times [2020-10-14 22:04:55,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:04:55,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333545615] [2020-10-14 22:04:55,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:04:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:55,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:55,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:57,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:57,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:04:57,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:04:57,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1325 [2020-10-14 22:04:57,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:57,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:57,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:04:57,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:04:57,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 22:04:57,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:04:57,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:04:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:57,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:57,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:57,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:04:57,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:04:57,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:04:57,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:57,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:57,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:04:57,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:04:57,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:04:57,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:04:57,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:04:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:57,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:57,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:57,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:04:57,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:04:57,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-14 22:04:57,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:57,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:04:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:04:57,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 22:04:57,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-14 22:04:57,443 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:04:57,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333545615] [2020-10-14 22:04:57,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:04:57,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:04:57,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528688490] [2020-10-14 22:04:57,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:04:57,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:04:57,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:04:57,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:04:57,448 INFO L87 Difference]: Start difference. First operand 688 states and 1008 transitions. Second operand 7 states. [2020-10-14 22:05:08,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:05:08,265 INFO L93 Difference]: Finished difference Result 2034 states and 2988 transitions. [2020-10-14 22:05:08,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:05:08,266 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 102 [2020-10-14 22:05:08,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:05:08,275 INFO L225 Difference]: With dead ends: 2034 [2020-10-14 22:05:08,276 INFO L226 Difference]: Without dead ends: 1352 [2020-10-14 22:05:08,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:05:08,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2020-10-14 22:05:08,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1330. [2020-10-14 22:05:08,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1330 states. [2020-10-14 22:05:08,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1719 transitions. [2020-10-14 22:05:08,365 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1719 transitions. Word has length 102 [2020-10-14 22:05:08,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:05:08,366 INFO L479 AbstractCegarLoop]: Abstraction has 1330 states and 1719 transitions. [2020-10-14 22:05:08,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:05:08,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1719 transitions. [2020-10-14 22:05:08,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-14 22:05:08,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:05:08,383 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:05:08,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:05:08,383 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:05:08,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:05:08,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1246812198, now seen corresponding path program 1 times [2020-10-14 22:05:08,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:05:08,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240615517] [2020-10-14 22:05:08,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:05:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:08,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:08,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:08,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:09,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:09,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:11,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:12,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:12,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-14 22:05:12,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:05:12,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4217 [2020-10-14 22:05:12,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:12,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:12,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:05:12,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:05:12,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 22:05:12,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:05:12,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:05:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:12,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:12,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:12,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:05:12,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:05:12,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:05:12,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:12,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:12,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:05:12,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:05:12,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:05:12,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:05:12,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:05:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:12,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:13,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:13,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 22:05:13,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:05:13,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-14 22:05:13,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:13,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:13,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:05:13,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:05:13,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:05:13,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:05:13,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 22:05:13,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:13,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:13,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:13,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 22:05:13,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:05:13,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 22:05:13,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:13,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:13,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:05:13,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:05:13,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 22:05:13,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:05:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 53 proven. 74 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:05:13,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [240615517] [2020-10-14 22:05:13,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:05:13,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:05:13,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018074729] [2020-10-14 22:05:13,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:05:13,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:05:13,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:05:13,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:05:13,413 INFO L87 Difference]: Start difference. First operand 1330 states and 1719 transitions. Second operand 8 states. [2020-10-14 22:05:20,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:05:20,208 INFO L93 Difference]: Finished difference Result 2720 states and 3737 transitions. [2020-10-14 22:05:20,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:05:20,209 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 207 [2020-10-14 22:05:20,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:05:20,220 INFO L225 Difference]: With dead ends: 2720 [2020-10-14 22:05:20,220 INFO L226 Difference]: Without dead ends: 2014 [2020-10-14 22:05:20,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:05:20,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2020-10-14 22:05:20,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1948. [2020-10-14 22:05:20,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1948 states. [2020-10-14 22:05:20,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2408 transitions. [2020-10-14 22:05:20,282 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2408 transitions. Word has length 207 [2020-10-14 22:05:20,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:05:20,283 INFO L479 AbstractCegarLoop]: Abstraction has 1948 states and 2408 transitions. [2020-10-14 22:05:20,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:05:20,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2408 transitions. [2020-10-14 22:05:20,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-10-14 22:05:20,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:05:20,290 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:05:20,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:05:20,291 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:05:20,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:05:20,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1659320036, now seen corresponding path program 1 times [2020-10-14 22:05:20,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:05:20,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498079434] [2020-10-14 22:05:20,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:05:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:20,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:20,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:20,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:25,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:25,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-14 22:05:25,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:05:25,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 22:05:25,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:25,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:05:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:05:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-14 22:05:25,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:05:25,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:05:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:25,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:25,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:25,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:05:25,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:05:25,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:05:25,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:25,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:25,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:05:25,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:05:25,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:05:25,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:05:25,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:05:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:25,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:25,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:25,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 22:05:25,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:05:25,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-14 22:05:25,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:25,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:25,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:05:25,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:05:25,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 22:05:25,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:05:26,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 22:05:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:26,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:26,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:26,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 22:05:26,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:05:26,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:05:26,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:26,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:26,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:05:26,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 22:05:26,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:05:26,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:05:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 52 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 22:05:26,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498079434] [2020-10-14 22:05:26,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:05:26,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:05:26,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612391311] [2020-10-14 22:05:26,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:05:26,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:05:26,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:05:26,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:05:26,396 INFO L87 Difference]: Start difference. First operand 1948 states and 2408 transitions. Second operand 7 states. [2020-10-14 22:05:34,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:05:34,606 INFO L93 Difference]: Finished difference Result 3641 states and 4557 transitions. [2020-10-14 22:05:34,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:05:34,613 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 313 [2020-10-14 22:05:34,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:05:34,625 INFO L225 Difference]: With dead ends: 3641 [2020-10-14 22:05:34,625 INFO L226 Difference]: Without dead ends: 2006 [2020-10-14 22:05:34,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:05:34,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2020-10-14 22:05:34,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1950. [2020-10-14 22:05:34,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1950 states. [2020-10-14 22:05:34,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2405 transitions. [2020-10-14 22:05:34,687 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2405 transitions. Word has length 313 [2020-10-14 22:05:34,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:05:34,690 INFO L479 AbstractCegarLoop]: Abstraction has 1950 states and 2405 transitions. [2020-10-14 22:05:34,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:05:34,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2405 transitions. [2020-10-14 22:05:34,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-14 22:05:34,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:05:34,695 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:05:34,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:05:34,696 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:05:34,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:05:34,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1610624593, now seen corresponding path program 1 times [2020-10-14 22:05:34,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:05:34,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106468830] [2020-10-14 22:05:34,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:05:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:34,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:34,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:35,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:36,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:37,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:38,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:38,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-14 22:05:38,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:05:38,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4138 [2020-10-14 22:05:38,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:38,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:38,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 22:05:38,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:05:38,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 334 [2020-10-14 22:05:38,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:05:39,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:05:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:39,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:39,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:39,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:05:39,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:05:39,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:05:39,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:39,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:39,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:05:39,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:05:39,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:05:39,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:05:39,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:05:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:39,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:39,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:39,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 22:05:39,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:05:39,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 22:05:39,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:39,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:39,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:05:39,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:05:39,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:05:39,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:05:39,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 22:05:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:39,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:39,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:40,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:40,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 22:05:40,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:05:40,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-10-14 22:05:40,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:40,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:40,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:05:40,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:05:40,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 22:05:40,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:05:40,634 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 22 proven. 121 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:05:40,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106468830] [2020-10-14 22:05:40,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:05:40,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:05:40,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130409164] [2020-10-14 22:05:40,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:05:40,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:05:40,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:05:40,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:05:40,638 INFO L87 Difference]: Start difference. First operand 1950 states and 2405 transitions. Second operand 8 states. [2020-10-14 22:05:53,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:05:53,808 INFO L93 Difference]: Finished difference Result 5799 states and 7455 transitions. [2020-10-14 22:05:53,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 22:05:53,809 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 328 [2020-10-14 22:05:53,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:05:53,832 INFO L225 Difference]: With dead ends: 5799 [2020-10-14 22:05:53,832 INFO L226 Difference]: Without dead ends: 5100 [2020-10-14 22:05:53,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2020-10-14 22:05:53,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5100 states. [2020-10-14 22:05:53,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5100 to 3840. [2020-10-14 22:05:53,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3840 states. [2020-10-14 22:05:53,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3840 states to 3840 states and 4692 transitions. [2020-10-14 22:05:53,939 INFO L78 Accepts]: Start accepts. Automaton has 3840 states and 4692 transitions. Word has length 328 [2020-10-14 22:05:53,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:05:53,939 INFO L479 AbstractCegarLoop]: Abstraction has 3840 states and 4692 transitions. [2020-10-14 22:05:53,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:05:53,940 INFO L276 IsEmpty]: Start isEmpty. Operand 3840 states and 4692 transitions. [2020-10-14 22:05:53,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2020-10-14 22:05:53,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:05:53,948 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:05:53,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:05:53,949 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:05:53,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:05:53,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1797874420, now seen corresponding path program 1 times [2020-10-14 22:05:53,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:05:53,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628840139] [2020-10-14 22:05:53,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:05:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:54,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:54,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:54,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 415 [2020-10-14 22:05:54,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:05:54,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 659 [2020-10-14 22:05:54,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:54,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:54,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:05:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:05:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 22:05:54,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:05:54,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:05:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:54,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:54,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:54,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:05:54,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:05:54,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:05:54,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:54,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:54,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:05:54,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:05:54,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:05:54,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:05:54,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:05:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:54,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:55,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:55,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 22:05:55,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:05:55,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-14 22:05:55,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:55,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:55,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:05:55,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:05:55,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-14 22:05:55,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:05:55,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:05:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:05:55,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:05:55,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:05:55,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 22:05:55,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:05:55,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 22:05:55,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:05:55,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:05:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:05:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:05:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 22:05:55,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:05:55,676 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 145 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:05:55,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628840139] [2020-10-14 22:05:55,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:05:55,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:05:55,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761386540] [2020-10-14 22:05:55,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:05:55,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:05:55,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:05:55,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:05:55,679 INFO L87 Difference]: Start difference. First operand 3840 states and 4692 transitions. Second operand 7 states. [2020-10-14 22:06:04,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:06:04,550 INFO L93 Difference]: Finished difference Result 8724 states and 11178 transitions. [2020-10-14 22:06:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:06:04,552 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 403 [2020-10-14 22:06:04,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:06:04,580 INFO L225 Difference]: With dead ends: 8724 [2020-10-14 22:06:04,580 INFO L226 Difference]: Without dead ends: 5506 [2020-10-14 22:06:04,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:06:04,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5506 states. [2020-10-14 22:06:04,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5506 to 5463. [2020-10-14 22:06:04,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5463 states. [2020-10-14 22:06:04,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 6559 transitions. [2020-10-14 22:06:04,725 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 6559 transitions. Word has length 403 [2020-10-14 22:06:04,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:06:04,726 INFO L479 AbstractCegarLoop]: Abstraction has 5463 states and 6559 transitions. [2020-10-14 22:06:04,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:06:04,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 6559 transitions. [2020-10-14 22:06:04,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2020-10-14 22:06:04,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:06:04,737 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:06:04,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:06:04,737 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:06:04,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:06:04,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1876418486, now seen corresponding path program 1 times [2020-10-14 22:06:04,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:06:04,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122807452] [2020-10-14 22:06:04,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:06:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:04,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:05,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:05,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:06,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:06,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:06,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 438 [2020-10-14 22:06:06,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:06:06,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2015 [2020-10-14 22:06:06,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:06,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:06:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 22:06:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:06:06,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:06:06,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:06:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:06,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:06,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:06,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:06:06,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:06:06,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:06:06,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:06,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:06,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:06:06,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:06:06,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:06:06,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:06:06,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:06:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:06,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:07,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:07,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 22:06:07,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:06:07,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:06:07,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:07,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:06:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:06:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 22:06:07,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:06:07,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 22:06:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:07,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:07,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:07,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:07,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 22:06:07,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:06:07,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-10-14 22:06:07,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:07,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:06:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:06:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 22:06:07,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:06:07,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-10-14 22:06:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:07,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:07,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:07,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 22:06:07,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:06:07,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-14 22:06:07,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:07,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:07,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:06:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:06:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 22:06:07,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:06:08,329 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 262 proven. 6 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-14 22:06:08,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122807452] [2020-10-14 22:06:08,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:06:08,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:06:08,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569231299] [2020-10-14 22:06:08,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:06:08,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:06:08,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:06:08,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:06:08,333 INFO L87 Difference]: Start difference. First operand 5463 states and 6559 transitions. Second operand 7 states. [2020-10-14 22:06:21,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:06:21,152 INFO L93 Difference]: Finished difference Result 11946 states and 14552 transitions. [2020-10-14 22:06:21,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:06:21,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 424 [2020-10-14 22:06:21,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:06:21,179 INFO L225 Difference]: With dead ends: 11946 [2020-10-14 22:06:21,180 INFO L226 Difference]: Without dead ends: 6465 [2020-10-14 22:06:21,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:06:21,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6465 states. [2020-10-14 22:06:21,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6465 to 6448. [2020-10-14 22:06:21,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6448 states. [2020-10-14 22:06:21,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6448 states to 6448 states and 7473 transitions. [2020-10-14 22:06:21,357 INFO L78 Accepts]: Start accepts. Automaton has 6448 states and 7473 transitions. Word has length 424 [2020-10-14 22:06:21,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:06:21,358 INFO L479 AbstractCegarLoop]: Abstraction has 6448 states and 7473 transitions. [2020-10-14 22:06:21,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:06:21,358 INFO L276 IsEmpty]: Start isEmpty. Operand 6448 states and 7473 transitions. [2020-10-14 22:06:21,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2020-10-14 22:06:21,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:06:21,374 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:06:21,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:06:21,375 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:06:21,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:06:21,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1389474786, now seen corresponding path program 1 times [2020-10-14 22:06:21,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:06:21,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1216677048] [2020-10-14 22:06:21,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:06:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:21,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:21,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:23,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:25,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:25,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 528 [2020-10-14 22:06:25,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:06:25,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3781 [2020-10-14 22:06:25,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:25,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:25,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:06:25,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:06:25,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 22:06:25,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:06:25,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:06:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:25,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:25,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:25,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:06:25,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:06:25,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:06:25,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:25,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:06:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:06:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:06:25,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:06:25,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:06:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:25,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:25,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:25,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 22:06:25,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:06:25,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-10-14 22:06:25,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:25,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:25,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:06:25,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:06:25,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-14 22:06:25,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:06:25,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:06:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:25,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:26,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:26,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:06:26,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:06:26,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-14 22:06:26,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:26,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:26,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:06:26,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:06:26,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:06:26,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:06:26,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-14 22:06:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:26,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:26,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:26,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 22:06:26,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:06:26,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:06:26,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:26,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:26,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:06:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-14 22:06:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:06:26,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:06:26,763 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 190 proven. 95 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-14 22:06:26,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1216677048] [2020-10-14 22:06:26,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:06:26,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:06:26,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83282522] [2020-10-14 22:06:26,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:06:26,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:06:26,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:06:26,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:06:26,766 INFO L87 Difference]: Start difference. First operand 6448 states and 7473 transitions. Second operand 8 states. [2020-10-14 22:06:35,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:06:35,508 INFO L93 Difference]: Finished difference Result 13600 states and 15823 transitions. [2020-10-14 22:06:35,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:06:35,509 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 514 [2020-10-14 22:06:35,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:06:35,541 INFO L225 Difference]: With dead ends: 13600 [2020-10-14 22:06:35,541 INFO L226 Difference]: Without dead ends: 7774 [2020-10-14 22:06:35,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:06:35,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7774 states. [2020-10-14 22:06:35,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7774 to 7706. [2020-10-14 22:06:35,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7706 states. [2020-10-14 22:06:35,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 8796 transitions. [2020-10-14 22:06:35,722 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 8796 transitions. Word has length 514 [2020-10-14 22:06:35,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:06:35,723 INFO L479 AbstractCegarLoop]: Abstraction has 7706 states and 8796 transitions. [2020-10-14 22:06:35,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:06:35,723 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 8796 transitions. [2020-10-14 22:06:35,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2020-10-14 22:06:35,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:06:35,731 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:06:35,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:06:35,731 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:06:35,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:06:35,732 INFO L82 PathProgramCache]: Analyzing trace with hash -2082747734, now seen corresponding path program 1 times [2020-10-14 22:06:35,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:06:35,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794642471] [2020-10-14 22:06:35,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:06:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:35,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:36,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:37,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:37,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 540 [2020-10-14 22:06:37,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:06:37,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1459 [2020-10-14 22:06:37,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:37,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:37,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:06:37,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 22:06:37,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:06:37,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:06:37,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:06:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:37,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:37,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:37,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:06:37,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:06:37,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:06:37,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:37,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:37,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:06:37,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:06:37,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:06:37,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:06:37,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:06:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:37,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:37,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:37,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:06:37,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:06:37,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 22:06:37,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:37,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:37,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:06:37,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:06:37,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:06:37,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:06:37,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:06:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:37,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:37,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:37,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:06:37,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:06:37,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:06:37,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:37,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:06:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:06:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:06:37,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:06:37,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:06:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:37,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:37,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:37,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:37,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 22:06:37,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:06:37,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 22:06:37,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:37,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:06:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:06:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 22:06:37,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:06:38,027 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 240 proven. 27 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-10-14 22:06:38,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794642471] [2020-10-14 22:06:38,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:06:38,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 22:06:38,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576880529] [2020-10-14 22:06:38,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 22:06:38,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:06:38,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 22:06:38,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:06:38,031 INFO L87 Difference]: Start difference. First operand 7706 states and 8796 transitions. Second operand 6 states. [2020-10-14 22:06:47,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:06:47,069 INFO L93 Difference]: Finished difference Result 15274 states and 18215 transitions. [2020-10-14 22:06:47,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:06:47,075 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 526 [2020-10-14 22:06:47,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:06:47,120 INFO L225 Difference]: With dead ends: 15274 [2020-10-14 22:06:47,120 INFO L226 Difference]: Without dead ends: 10680 [2020-10-14 22:06:47,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:06:47,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2020-10-14 22:06:47,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 10656. [2020-10-14 22:06:47,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10656 states. [2020-10-14 22:06:47,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10656 states to 10656 states and 12453 transitions. [2020-10-14 22:06:47,325 INFO L78 Accepts]: Start accepts. Automaton has 10656 states and 12453 transitions. Word has length 526 [2020-10-14 22:06:47,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:06:47,326 INFO L479 AbstractCegarLoop]: Abstraction has 10656 states and 12453 transitions. [2020-10-14 22:06:47,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 22:06:47,327 INFO L276 IsEmpty]: Start isEmpty. Operand 10656 states and 12453 transitions. [2020-10-14 22:06:47,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2020-10-14 22:06:47,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:06:47,337 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:06:47,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:06:47,337 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:06:47,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:06:47,338 INFO L82 PathProgramCache]: Analyzing trace with hash 211491486, now seen corresponding path program 1 times [2020-10-14 22:06:47,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:06:47,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894904147] [2020-10-14 22:06:47,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:06:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:47,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:48,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:48,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 550 [2020-10-14 22:06:48,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:06:48,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 695 [2020-10-14 22:06:48,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:48,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:48,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:06:48,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 22:06:48,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 22:06:48,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:06:48,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:06:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:48,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:48,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:48,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:06:48,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:06:48,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:06:48,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:48,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:48,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:06:48,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:06:48,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:06:48,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:06:48,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:06:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:48,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:48,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:48,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:06:48,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:06:48,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:06:48,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:48,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:48,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:06:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:06:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:06:48,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:06:48,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:06:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:48,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:48,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:48,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:06:48,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:06:48,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:06:48,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:48,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:48,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:06:48,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:06:48,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:06:48,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:06:48,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:06:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:48,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:06:48,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:06:48,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 22:06:48,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:06:48,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 22:06:48,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:06:48,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:06:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:06:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:06:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 22:06:48,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:06:48,780 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 289 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 22:06:48,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894904147] [2020-10-14 22:06:48,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:06:48,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:06:48,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264363919] [2020-10-14 22:06:48,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:06:48,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:06:48,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:06:48,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:06:48,783 INFO L87 Difference]: Start difference. First operand 10656 states and 12453 transitions. Second operand 7 states. [2020-10-14 22:06:58,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:06:58,904 INFO L93 Difference]: Finished difference Result 23617 states and 28668 transitions. [2020-10-14 22:06:58,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:06:58,907 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 536 [2020-10-14 22:06:58,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:06:58,968 INFO L225 Difference]: With dead ends: 23617 [2020-10-14 22:06:58,968 INFO L226 Difference]: Without dead ends: 13583 [2020-10-14 22:06:58,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:06:59,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13583 states. [2020-10-14 22:06:59,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13583 to 13522. [2020-10-14 22:06:59,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13522 states. [2020-10-14 22:06:59,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13522 states to 13522 states and 15737 transitions. [2020-10-14 22:06:59,301 INFO L78 Accepts]: Start accepts. Automaton has 13522 states and 15737 transitions. Word has length 536 [2020-10-14 22:06:59,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:06:59,302 INFO L479 AbstractCegarLoop]: Abstraction has 13522 states and 15737 transitions. [2020-10-14 22:06:59,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:06:59,302 INFO L276 IsEmpty]: Start isEmpty. Operand 13522 states and 15737 transitions. [2020-10-14 22:06:59,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2020-10-14 22:06:59,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:06:59,312 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:06:59,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:06:59,313 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:06:59,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:06:59,313 INFO L82 PathProgramCache]: Analyzing trace with hash -46224826, now seen corresponding path program 1 times [2020-10-14 22:06:59,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:06:59,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77095896] [2020-10-14 22:06:59,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:06:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:06:59,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:00,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:01,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:01,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:01,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 572 [2020-10-14 22:07:01,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:07:01,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2366 [2020-10-14 22:07:01,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:01,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:01,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:07:01,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 22:07:01,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 22:07:01,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:01,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:07:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:01,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:01,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:01,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:07:01,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:01,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:07:01,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:01,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:01,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:07:01,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:07:01,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:07:01,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:01,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:07:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:01,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:02,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:02,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:07:02,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:02,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:07:02,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:02,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:02,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:07:02,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:07:02,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:07:02,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:02,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:07:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:02,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:02,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:02,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:07:02,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:02,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 22:07:02,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:02,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:02,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:07:02,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:07:02,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:07:02,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:02,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:07:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:02,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:02,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:02,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 22:07:02,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:02,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 22:07:02,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:02,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:02,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:07:02,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:07:02,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 22:07:02,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:07:02,643 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 316 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 22:07:02,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77095896] [2020-10-14 22:07:02,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:07:02,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:07:02,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698877048] [2020-10-14 22:07:02,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:07:02,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:07:02,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:07:02,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:07:02,646 INFO L87 Difference]: Start difference. First operand 13522 states and 15737 transitions. Second operand 7 states. [2020-10-14 22:07:16,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:07:16,213 INFO L93 Difference]: Finished difference Result 27655 states and 33262 transitions. [2020-10-14 22:07:16,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:07:16,215 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 558 [2020-10-14 22:07:16,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:07:16,265 INFO L225 Difference]: With dead ends: 27655 [2020-10-14 22:07:16,265 INFO L226 Difference]: Without dead ends: 17857 [2020-10-14 22:07:16,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:07:16,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17857 states. [2020-10-14 22:07:16,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17857 to 17235. [2020-10-14 22:07:16,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17235 states. [2020-10-14 22:07:16,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17235 states to 17235 states and 20201 transitions. [2020-10-14 22:07:16,592 INFO L78 Accepts]: Start accepts. Automaton has 17235 states and 20201 transitions. Word has length 558 [2020-10-14 22:07:16,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:07:16,593 INFO L479 AbstractCegarLoop]: Abstraction has 17235 states and 20201 transitions. [2020-10-14 22:07:16,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:07:16,593 INFO L276 IsEmpty]: Start isEmpty. Operand 17235 states and 20201 transitions. [2020-10-14 22:07:16,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2020-10-14 22:07:16,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:07:16,604 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:07:16,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:07:16,605 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:07:16,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:07:16,605 INFO L82 PathProgramCache]: Analyzing trace with hash 444448779, now seen corresponding path program 1 times [2020-10-14 22:07:16,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:07:16,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206142644] [2020-10-14 22:07:16,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:07:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:16,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:17,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:18,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:20,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:20,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 593 [2020-10-14 22:07:20,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:07:20,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3549 [2020-10-14 22:07:20,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:20,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:20,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 22:07:20,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 296 [2020-10-14 22:07:20,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:07:20,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:20,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:07:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:20,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:20,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:20,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:07:20,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:20,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:07:20,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:20,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:07:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:07:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:07:20,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:20,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:07:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:20,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:20,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:20,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:07:20,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:20,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-14 22:07:20,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:20,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:20,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:07:20,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:07:20,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 281 [2020-10-14 22:07:20,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:07:20,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:07:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:20,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:21,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:21,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:07:21,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:21,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 22:07:21,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:21,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:21,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:07:21,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:07:21,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:07:21,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:21,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:07:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:21,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:21,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:21,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:07:21,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:21,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 22:07:21,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:21,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:07:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:07:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 22:07:21,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:07:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 332 proven. 114 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 22:07:21,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206142644] [2020-10-14 22:07:21,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:07:21,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 22:07:21,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616965826] [2020-10-14 22:07:21,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 22:07:21,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:07:21,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 22:07:21,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:07:21,846 INFO L87 Difference]: Start difference. First operand 17235 states and 20201 transitions. Second operand 10 states. [2020-10-14 22:07:34,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:07:34,346 INFO L93 Difference]: Finished difference Result 32036 states and 38114 transitions. [2020-10-14 22:07:34,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 22:07:34,347 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 579 [2020-10-14 22:07:34,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:07:34,393 INFO L225 Difference]: With dead ends: 32036 [2020-10-14 22:07:34,394 INFO L226 Difference]: Without dead ends: 18525 [2020-10-14 22:07:34,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2020-10-14 22:07:34,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18525 states. [2020-10-14 22:07:34,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18525 to 18493. [2020-10-14 22:07:34,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18493 states. [2020-10-14 22:07:34,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18493 states to 18493 states and 21603 transitions. [2020-10-14 22:07:34,709 INFO L78 Accepts]: Start accepts. Automaton has 18493 states and 21603 transitions. Word has length 579 [2020-10-14 22:07:34,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:07:34,710 INFO L479 AbstractCegarLoop]: Abstraction has 18493 states and 21603 transitions. [2020-10-14 22:07:34,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 22:07:34,710 INFO L276 IsEmpty]: Start isEmpty. Operand 18493 states and 21603 transitions. [2020-10-14 22:07:34,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2020-10-14 22:07:34,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:07:34,725 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:07:34,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:07:34,725 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:07:34,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:07:34,725 INFO L82 PathProgramCache]: Analyzing trace with hash -392615990, now seen corresponding path program 1 times [2020-10-14 22:07:34,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:07:34,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2008048939] [2020-10-14 22:07:34,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:07:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:34,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:35,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:35,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 622 [2020-10-14 22:07:35,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:35,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 690 [2020-10-14 22:07:35,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:35,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:07:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 491 [2020-10-14 22:07:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 22:07:35,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:35,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:07:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:35,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:35,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:35,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:07:35,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:35,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:07:35,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:35,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:35,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:07:35,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:07:35,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:07:35,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:35,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:07:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:35,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:35,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:35,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:07:35,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:35,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 22:07:35,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:35,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:35,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:07:35,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:07:35,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:07:35,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:35,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:07:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:35,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:35,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:35,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 22:07:35,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:35,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 22:07:35,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:35,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:35,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:07:35,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:07:35,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-10-14 22:07:35,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:35,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2020-10-14 22:07:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:36,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:36,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:36,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 22:07:36,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:36,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:07:36,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:36,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:36,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:07:36,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:07:36,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 22:07:36,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:36,388 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 269 proven. 2 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2020-10-14 22:07:36,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2008048939] [2020-10-14 22:07:36,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:07:36,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:07:36,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805874608] [2020-10-14 22:07:36,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:07:36,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:07:36,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:07:36,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:07:36,390 INFO L87 Difference]: Start difference. First operand 18493 states and 21603 transitions. Second operand 7 states. [2020-10-14 22:07:47,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:07:47,151 INFO L93 Difference]: Finished difference Result 47856 states and 57118 transitions. [2020-10-14 22:07:47,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:07:47,153 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 608 [2020-10-14 22:07:47,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:07:47,234 INFO L225 Difference]: With dead ends: 47856 [2020-10-14 22:07:47,234 INFO L226 Difference]: Without dead ends: 29985 [2020-10-14 22:07:47,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:07:47,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29985 states. [2020-10-14 22:07:47,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29985 to 27475. [2020-10-14 22:07:47,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27475 states. [2020-10-14 22:07:47,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27475 states to 27475 states and 33038 transitions. [2020-10-14 22:07:47,765 INFO L78 Accepts]: Start accepts. Automaton has 27475 states and 33038 transitions. Word has length 608 [2020-10-14 22:07:47,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:07:47,766 INFO L479 AbstractCegarLoop]: Abstraction has 27475 states and 33038 transitions. [2020-10-14 22:07:47,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:07:47,766 INFO L276 IsEmpty]: Start isEmpty. Operand 27475 states and 33038 transitions. [2020-10-14 22:07:47,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 721 [2020-10-14 22:07:47,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:07:47,790 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:07:47,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:07:47,790 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:07:47,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:07:47,791 INFO L82 PathProgramCache]: Analyzing trace with hash 948658650, now seen corresponding path program 1 times [2020-10-14 22:07:47,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:07:47,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886331391] [2020-10-14 22:07:47,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:07:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:48,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:48,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:48,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:52,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:52,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:52,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 736 [2020-10-14 22:07:52,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:07:52,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-14 22:07:52,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:52,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:52,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:07:52,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 573 [2020-10-14 22:07:52,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 22:07:52,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:53,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:07:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:53,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:53,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:53,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:07:53,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:53,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:07:53,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:53,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:53,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:07:53,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:07:53,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:07:53,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:53,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:07:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:53,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:53,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:53,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:07:53,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:53,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:07:53,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:53,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:07:53,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:07:53,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:07:53,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:53,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:07:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:53,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:53,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:53,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 22:07:53,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:53,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:07:53,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:53,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:53,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:07:53,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:07:53,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:07:53,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:53,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2020-10-14 22:07:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:53,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:53,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:53,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 22:07:53,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:53,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:07:53,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:53,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:53,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:07:53,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:07:53,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 22:07:53,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:53,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2020-10-14 22:07:53,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:07:53,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:07:53,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:07:53,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 22:07:53,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:07:53,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-14 22:07:53,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:07:53,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:07:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:07:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:07:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 22:07:53,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:07:54,209 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 441 proven. 2 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2020-10-14 22:07:54,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886331391] [2020-10-14 22:07:54,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:07:54,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:07:54,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118051822] [2020-10-14 22:07:54,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:07:54,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:07:54,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:07:54,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:07:54,212 INFO L87 Difference]: Start difference. First operand 27475 states and 33038 transitions. Second operand 7 states. [2020-10-14 22:08:05,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:08:05,674 INFO L93 Difference]: Finished difference Result 51567 states and 63368 transitions. [2020-10-14 22:08:05,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:08:05,676 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 720 [2020-10-14 22:08:05,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:08:05,751 INFO L225 Difference]: With dead ends: 51567 [2020-10-14 22:08:05,752 INFO L226 Difference]: Without dead ends: 29058 [2020-10-14 22:08:05,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:08:05,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29058 states. [2020-10-14 22:08:06,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29058 to 29035. [2020-10-14 22:08:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29035 states. [2020-10-14 22:08:06,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29035 states to 29035 states and 34511 transitions. [2020-10-14 22:08:06,287 INFO L78 Accepts]: Start accepts. Automaton has 29035 states and 34511 transitions. Word has length 720 [2020-10-14 22:08:06,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:08:06,288 INFO L479 AbstractCegarLoop]: Abstraction has 29035 states and 34511 transitions. [2020-10-14 22:08:06,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:08:06,288 INFO L276 IsEmpty]: Start isEmpty. Operand 29035 states and 34511 transitions. [2020-10-14 22:08:06,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2020-10-14 22:08:06,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:08:06,314 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:08:06,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:08:06,314 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:08:06,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:08:06,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1698191937, now seen corresponding path program 1 times [2020-10-14 22:08:06,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:08:06,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [554895248] [2020-10-14 22:08:06,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:08:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:06,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:07,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:07,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:07,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:11,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:11,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 740 [2020-10-14 22:08:11,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:08:11,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 22:08:11,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:11,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:11,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:08:11,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 578 [2020-10-14 22:08:11,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:08:11,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:08:11,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:08:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:11,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:11,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:11,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:08:11,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:11,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:08:11,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:11,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:11,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:08:11,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:08:11,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:08:11,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:08:11,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:08:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:11,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:11,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:11,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:08:11,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:11,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:08:11,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:11,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:11,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:08:11,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:08:11,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:08:11,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:08:11,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:08:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:11,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:11,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:11,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 22:08:11,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:11,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:08:11,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:11,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:11,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:08:11,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:08:11,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:08:11,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:08:11,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2020-10-14 22:08:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:11,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:11,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:11,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 22:08:11,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:11,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:08:11,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:11,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:11,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:08:11,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:08:11,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 22:08:11,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:08:11,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2020-10-14 22:08:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:11,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:12,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:12,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 22:08:12,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:12,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 22:08:12,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:12,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:12,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:08:12,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:08:12,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 22:08:12,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:08:12,384 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 444 proven. 2 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2020-10-14 22:08:12,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [554895248] [2020-10-14 22:08:12,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:08:12,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:08:12,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579647039] [2020-10-14 22:08:12,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:08:12,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:08:12,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:08:12,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:08:12,386 INFO L87 Difference]: Start difference. First operand 29035 states and 34511 transitions. Second operand 7 states. [2020-10-14 22:08:24,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:08:24,579 INFO L93 Difference]: Finished difference Result 59674 states and 72242 transitions. [2020-10-14 22:08:24,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:08:24,582 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 724 [2020-10-14 22:08:24,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:08:24,689 INFO L225 Difference]: With dead ends: 59674 [2020-10-14 22:08:24,689 INFO L226 Difference]: Without dead ends: 35605 [2020-10-14 22:08:24,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:08:24,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35605 states. [2020-10-14 22:08:25,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35605 to 34650. [2020-10-14 22:08:25,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34650 states. [2020-10-14 22:08:25,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34650 states to 34650 states and 41102 transitions. [2020-10-14 22:08:25,335 INFO L78 Accepts]: Start accepts. Automaton has 34650 states and 41102 transitions. Word has length 724 [2020-10-14 22:08:25,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:08:25,336 INFO L479 AbstractCegarLoop]: Abstraction has 34650 states and 41102 transitions. [2020-10-14 22:08:25,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:08:25,336 INFO L276 IsEmpty]: Start isEmpty. Operand 34650 states and 41102 transitions. [2020-10-14 22:08:25,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2020-10-14 22:08:25,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:08:25,356 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:08:25,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:08:25,356 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:08:25,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:08:25,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1672676828, now seen corresponding path program 1 times [2020-10-14 22:08:25,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:08:25,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324529105] [2020-10-14 22:08:25,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:08:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:25,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:25,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:27,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:28,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:28,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 742 [2020-10-14 22:08:28,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:08:28,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2825 [2020-10-14 22:08:28,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:28,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:28,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:08:28,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 578 [2020-10-14 22:08:28,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:08:28,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:08:28,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:08:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:28,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:28,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:28,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:08:28,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:28,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:08:28,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:28,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:08:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:08:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:08:28,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:08:28,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:08:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:28,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:28,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:28,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:08:28,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:28,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 22:08:28,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:28,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:28,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:08:28,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:08:28,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:08:28,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:08:28,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:08:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:28,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:28,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:28,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 22:08:28,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:28,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:08:28,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:28,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:28,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:08:28,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:08:28,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:08:28,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:08:28,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2020-10-14 22:08:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:28,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:28,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:28,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 22:08:28,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:28,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:08:28,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:28,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:28,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:08:28,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:08:28,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 22:08:28,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:08:28,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-14 22:08:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:28,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:28,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:28,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 22:08:28,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:28,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 22:08:28,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:28,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:28,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:08:28,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:08:28,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 22:08:28,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0