/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_label29.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 21:59:09,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 21:59:09,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 21:59:09,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 21:59:09,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 21:59:09,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 21:59:09,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 21:59:09,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 21:59:09,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 21:59:09,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 21:59:09,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 21:59:09,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 21:59:10,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 21:59:10,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 21:59:10,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 21:59:10,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 21:59:10,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 21:59:10,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 21:59:10,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 21:59:10,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 21:59:10,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 21:59:10,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 21:59:10,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 21:59:10,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 21:59:10,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 21:59:10,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 21:59:10,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 21:59:10,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 21:59:10,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 21:59:10,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 21:59:10,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 21:59:10,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 21:59:10,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 21:59:10,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 21:59:10,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 21:59:10,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 21:59:10,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 21:59:10,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 21:59:10,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 21:59:10,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 21:59:10,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 21:59:10,046 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 21:59:10,102 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 21:59:10,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 21:59:10,104 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 21:59:10,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 21:59:10,105 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 21:59:10,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 21:59:10,106 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 21:59:10,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 21:59:10,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 21:59:10,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 21:59:10,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 21:59:10,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 21:59:10,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 21:59:10,107 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 21:59:10,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 21:59:10,109 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 21:59:10,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 21:59:10,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 21:59:10,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 21:59:10,110 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 21:59:10,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 21:59:10,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 21:59:10,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 21:59:10,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 21:59:10,112 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 21:59:10,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 21:59:10,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 21:59:10,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 21:59:10,114 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 21:59:10,114 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 21:59:10,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 21:59:10,464 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 21:59:10,468 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 21:59:10,470 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 21:59:10,470 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 21:59:10,471 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label29.c [2020-10-14 21:59:10,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d6b85c47/26457f76abed4d77ab65dac68e76bab0/FLAG048d40da6 [2020-10-14 21:59:11,283 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 21:59:11,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem15_label29.c [2020-10-14 21:59:11,308 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d6b85c47/26457f76abed4d77ab65dac68e76bab0/FLAG048d40da6 [2020-10-14 21:59:11,415 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d6b85c47/26457f76abed4d77ab65dac68e76bab0 [2020-10-14 21:59:11,425 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 21:59:11,427 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 21:59:11,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 21:59:11,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 21:59:11,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 21:59:11,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:59:11" (1/1) ... [2020-10-14 21:59:11,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@600db5d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:11, skipping insertion in model container [2020-10-14 21:59:11,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:59:11" (1/1) ... [2020-10-14 21:59:11,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 21:59:11,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 21:59:12,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:59:12,571 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 21:59:12,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:59:12,978 INFO L208 MainTranslator]: Completed translation [2020-10-14 21:59:12,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:12 WrapperNode [2020-10-14 21:59:12,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 21:59:12,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 21:59:12,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 21:59:12,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 21:59:13,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:12" (1/1) ... [2020-10-14 21:59:13,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:12" (1/1) ... [2020-10-14 21:59:13,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:12" (1/1) ... [2020-10-14 21:59:13,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:12" (1/1) ... [2020-10-14 21:59:13,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:12" (1/1) ... [2020-10-14 21:59:13,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:12" (1/1) ... [2020-10-14 21:59:13,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:12" (1/1) ... [2020-10-14 21:59:13,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 21:59:13,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 21:59:13,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 21:59:13,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 21:59:13,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:12" (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 21:59:13,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 21:59:13,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 21:59:13,300 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 21:59:13,300 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 21:59:13,300 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 21:59:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 21:59:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 21:59:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 21:59:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 21:59:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 21:59:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 21:59:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 21:59:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 21:59:19,031 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 21:59:19,032 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 21:59:19,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:59:19 BoogieIcfgContainer [2020-10-14 21:59:19,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 21:59:19,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 21:59:19,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 21:59:19,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 21:59:19,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:59:11" (1/3) ... [2020-10-14 21:59:19,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ce1144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:59:19, skipping insertion in model container [2020-10-14 21:59:19,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:12" (2/3) ... [2020-10-14 21:59:19,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ce1144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:59:19, skipping insertion in model container [2020-10-14 21:59:19,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:59:19" (3/3) ... [2020-10-14 21:59:19,049 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label29.c [2020-10-14 21:59:19,061 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 21:59:19,070 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 21:59:19,085 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 21:59:19,116 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 21:59:19,117 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 21:59:19,117 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 21:59:19,117 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 21:59:19,117 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 21:59:19,117 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 21:59:19,118 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 21:59:19,118 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 21:59:19,147 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states. [2020-10-14 21:59:19,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 21:59:19,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:59:19,157 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] [2020-10-14 21:59:19,158 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:59:19,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:59:19,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1084941995, now seen corresponding path program 1 times [2020-10-14 21:59:19,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:59:19,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946279888] [2020-10-14 21:59:19,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:59:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:19,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:19,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:19,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 21:59:19,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:19,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-10-14 21:59:19,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:19,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:59:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:59:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 21:59:19,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:59:19,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:59:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:19,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:19,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:19,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:59:19,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:19,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 21:59:19,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:19,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:19,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:59:19,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:19,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:59:19,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:19,872 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 21:59:19,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946279888] [2020-10-14 21:59:19,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:59:19,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 21:59:19,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111228964] [2020-10-14 21:59:19,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 21:59:19,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:59:19,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 21:59:19,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 21:59:19,908 INFO L87 Difference]: Start difference. First operand 437 states. Second operand 4 states. [2020-10-14 21:59:25,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:59:25,945 INFO L93 Difference]: Finished difference Result 1240 states and 2220 transitions. [2020-10-14 21:59:25,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:59:25,948 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-10-14 21:59:25,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:59:25,982 INFO L225 Difference]: With dead ends: 1240 [2020-10-14 21:59:25,983 INFO L226 Difference]: Without dead ends: 724 [2020-10-14 21:59:25,999 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 21:59:26,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2020-10-14 21:59:26,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 712. [2020-10-14 21:59:26,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2020-10-14 21:59:26,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1129 transitions. [2020-10-14 21:59:26,123 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1129 transitions. Word has length 27 [2020-10-14 21:59:26,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:59:26,124 INFO L479 AbstractCegarLoop]: Abstraction has 712 states and 1129 transitions. [2020-10-14 21:59:26,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 21:59:26,124 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1129 transitions. [2020-10-14 21:59:26,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-14 21:59:26,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:59:26,130 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:59:26,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 21:59:26,131 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:59:26,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:59:26,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1714924775, now seen corresponding path program 1 times [2020-10-14 21:59:26,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:59:26,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665399497] [2020-10-14 21:59:26,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:59:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:26,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:26,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:27,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:27,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:28,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:28,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 21:59:28,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:59:28,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1932 [2020-10-14 21:59:28,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:28,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:28,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 21:59:28,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:59:28,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 21:59:28,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:59:28,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:59:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:28,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:28,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:28,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:59:28,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:28,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 21:59:28,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:28,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:28,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:59:28,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:28,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:59:28,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:59:28,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:59:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:28,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:28,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:28,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:28,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 21:59:28,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:59:28,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 21:59:28,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:28,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:28,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:59:28,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:28,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 21:59:28,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:28,589 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 21:59:28,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665399497] [2020-10-14 21:59:28,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:59:28,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:59:28,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747478802] [2020-10-14 21:59:28,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:59:28,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:59:28,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:59:28,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:59:28,595 INFO L87 Difference]: Start difference. First operand 712 states and 1129 transitions. Second operand 6 states. [2020-10-14 21:59:36,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:59:36,009 INFO L93 Difference]: Finished difference Result 2684 states and 4353 transitions. [2020-10-14 21:59:36,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:59:36,010 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2020-10-14 21:59:36,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:59:36,024 INFO L225 Difference]: With dead ends: 2684 [2020-10-14 21:59:36,024 INFO L226 Difference]: Without dead ends: 1978 [2020-10-14 21:59:36,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:59:36,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2020-10-14 21:59:36,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1970. [2020-10-14 21:59:36,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1970 states. [2020-10-14 21:59:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1970 states to 1970 states and 2850 transitions. [2020-10-14 21:59:36,140 INFO L78 Accepts]: Start accepts. Automaton has 1970 states and 2850 transitions. Word has length 99 [2020-10-14 21:59:36,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:59:36,141 INFO L479 AbstractCegarLoop]: Abstraction has 1970 states and 2850 transitions. [2020-10-14 21:59:36,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:59:36,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1970 states and 2850 transitions. [2020-10-14 21:59:36,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-14 21:59:36,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:59:36,161 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 21:59:36,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 21:59:36,161 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:59:36,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:59:36,162 INFO L82 PathProgramCache]: Analyzing trace with hash -2093013943, now seen corresponding path program 1 times [2020-10-14 21:59:36,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:59:36,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473082182] [2020-10-14 21:59:36,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:59:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:36,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:36,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:36,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:59:36,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:36,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 675 [2020-10-14 21:59:36,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:36,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:36,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:59:36,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:59:36,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-14 21:59:36,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:36,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:59:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:36,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:37,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:37,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:59:37,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:37,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 21:59:37,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:37,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:37,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:59:37,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:37,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:59:37,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:37,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:59:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:37,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:37,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:37,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 21:59:37,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:37,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-10-14 21:59:37,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:37,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:37,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:59:37,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:59:37,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-14 21:59:37,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:37,725 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:59:37,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473082182] [2020-10-14 21:59:37,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:59:37,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 21:59:37,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530305354] [2020-10-14 21:59:37,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:59:37,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:59:37,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:59:37,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:59:37,729 INFO L87 Difference]: Start difference. First operand 1970 states and 2850 transitions. Second operand 7 states. [2020-10-14 21:59:45,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:59:45,494 INFO L93 Difference]: Finished difference Result 5532 states and 8081 transitions. [2020-10-14 21:59:45,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:59:45,500 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-10-14 21:59:45,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:59:45,525 INFO L225 Difference]: With dead ends: 5532 [2020-10-14 21:59:45,526 INFO L226 Difference]: Without dead ends: 3568 [2020-10-14 21:59:45,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:59:45,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3568 states. [2020-10-14 21:59:45,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3568 to 3241. [2020-10-14 21:59:45,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3241 states. [2020-10-14 21:59:45,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 4300 transitions. [2020-10-14 21:59:45,650 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 4300 transitions. Word has length 170 [2020-10-14 21:59:45,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:59:45,653 INFO L479 AbstractCegarLoop]: Abstraction has 3241 states and 4300 transitions. [2020-10-14 21:59:45,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:59:45,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 4300 transitions. [2020-10-14 21:59:45,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-14 21:59:45,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:59:45,662 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:59:45,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 21:59:45,663 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:59:45,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:59:45,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1119755224, now seen corresponding path program 1 times [2020-10-14 21:59:45,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:59:45,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186982766] [2020-10-14 21:59:45,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:59:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:45,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:46,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:47,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:47,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:47,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-14 21:59:47,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:59:47,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2120 [2020-10-14 21:59:47,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:47,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:47,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:59:47,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:59:47,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-14 21:59:47,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:59:48,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:59:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:48,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:48,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:48,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:59:48,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:48,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 21:59:48,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:48,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:48,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:59:48,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:48,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:59:48,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:48,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:59:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:48,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:48,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:48,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 21:59:48,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:48,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-10-14 21:59:48,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:48,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:48,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:59:48,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:59:48,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 21:59:48,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:49,120 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:59:49,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186982766] [2020-10-14 21:59:49,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:59:49,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 21:59:49,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727808783] [2020-10-14 21:59:49,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:59:49,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:59:49,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:59:49,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:59:49,129 INFO L87 Difference]: Start difference. First operand 3241 states and 4300 transitions. Second operand 7 states. [2020-10-14 21:59:56,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:59:56,391 INFO L93 Difference]: Finished difference Result 6819 states and 9001 transitions. [2020-10-14 21:59:56,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:59:56,398 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-10-14 21:59:56,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:59:56,417 INFO L225 Difference]: With dead ends: 6819 [2020-10-14 21:59:56,417 INFO L226 Difference]: Without dead ends: 3584 [2020-10-14 21:59:56,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:59:56,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2020-10-14 21:59:56,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 3567. [2020-10-14 21:59:56,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3567 states. [2020-10-14 21:59:56,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3567 states to 3567 states and 4654 transitions. [2020-10-14 21:59:56,523 INFO L78 Accepts]: Start accepts. Automaton has 3567 states and 4654 transitions. Word has length 227 [2020-10-14 21:59:56,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:59:56,524 INFO L479 AbstractCegarLoop]: Abstraction has 3567 states and 4654 transitions. [2020-10-14 21:59:56,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:59:56,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3567 states and 4654 transitions. [2020-10-14 21:59:56,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-10-14 21:59:56,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:59:56,531 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:56,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 21:59:56,532 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:59:56,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:59:56,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1527545335, now seen corresponding path program 1 times [2020-10-14 21:59:56,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:59:56,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347582494] [2020-10-14 21:59:56,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:59:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:56,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:56,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:57,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:57,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:59,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:01,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:01,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-10-14 22:00:01,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:00:01,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4790 [2020-10-14 22:00:01,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:01,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 22:00:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:00:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 328 [2020-10-14 22:00:01,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:01,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:00:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:01,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:01,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:01,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:00:01,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:01,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:00:01,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:01,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:01,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:00:01,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:01,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:00:01,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:01,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:00:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:01,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:01,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:01,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:01,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 22:00:01,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:00:01,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-14 22:00:01,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:01,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:01,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:00:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 22:00:01,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:01,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 22:00:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:01,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:02,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:02,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:02,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 22:00:02,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:00:02,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 720 [2020-10-14 22:00:02,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:02,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:02,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:00:02,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:02,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 22:00:02,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:02,825 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 32 proven. 11 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-14 22:00:02,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347582494] [2020-10-14 22:00:02,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:00:02,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:00:02,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980323412] [2020-10-14 22:00:02,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:00:02,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:00:02,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:00:02,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:00:02,829 INFO L87 Difference]: Start difference. First operand 3567 states and 4654 transitions. Second operand 7 states. [2020-10-14 22:00:16,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:00:16,362 INFO L93 Difference]: Finished difference Result 9305 states and 13138 transitions. [2020-10-14 22:00:16,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:00:16,363 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 322 [2020-10-14 22:00:16,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:00:16,405 INFO L225 Difference]: With dead ends: 9305 [2020-10-14 22:00:16,405 INFO L226 Difference]: Without dead ends: 7302 [2020-10-14 22:00:16,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:00:16,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7302 states. [2020-10-14 22:00:16,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7302 to 5130. [2020-10-14 22:00:16,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5130 states. [2020-10-14 22:00:16,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5130 states to 5130 states and 6697 transitions. [2020-10-14 22:00:16,591 INFO L78 Accepts]: Start accepts. Automaton has 5130 states and 6697 transitions. Word has length 322 [2020-10-14 22:00:16,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:00:16,592 INFO L479 AbstractCegarLoop]: Abstraction has 5130 states and 6697 transitions. [2020-10-14 22:00:16,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:00:16,593 INFO L276 IsEmpty]: Start isEmpty. Operand 5130 states and 6697 transitions. [2020-10-14 22:00:16,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2020-10-14 22:00:16,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:00:16,605 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:00:16,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:00:16,606 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:00:16,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:00:16,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1014183457, now seen corresponding path program 1 times [2020-10-14 22:00:16,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:00:16,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499439400] [2020-10-14 22:00:16,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:00:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:16,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:17,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:17,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:21,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:21,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 471 [2020-10-14 22:00:21,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:00:21,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-14 22:00:21,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:21,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:21,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:21,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:00:21,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 22:00:21,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:21,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:00:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:21,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:21,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:21,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:00:21,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:21,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:00:21,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:21,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:21,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:21,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:21,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:21,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:21,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:00:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:22,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:22,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:22,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 22:00:22,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:22,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-14 22:00:22,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:22,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:22,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:00:22,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:22,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-14 22:00:22,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:22,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:00:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:22,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:22,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:22,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 22:00:22,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:22,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-14 22:00:22,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:22,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:22,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:22,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:00:22,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 22:00:22,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:22,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-14 22:00:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:22,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:22,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:22,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:00:22,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:22,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:00:22,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:22,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 22:00:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:22,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 141 proven. 75 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-14 22:00:23,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499439400] [2020-10-14 22:00:23,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:00:23,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:00:23,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944965703] [2020-10-14 22:00:23,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:00:23,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:00:23,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:00:23,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:00:23,035 INFO L87 Difference]: Start difference. First operand 5130 states and 6697 transitions. Second operand 7 states. [2020-10-14 22:00:32,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:00:32,340 INFO L93 Difference]: Finished difference Result 11593 states and 15482 transitions. [2020-10-14 22:00:32,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:00:32,342 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 457 [2020-10-14 22:00:32,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:00:32,375 INFO L225 Difference]: With dead ends: 11593 [2020-10-14 22:00:32,375 INFO L226 Difference]: Without dead ends: 6776 [2020-10-14 22:00:32,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:00:32,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6776 states. [2020-10-14 22:00:32,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6776 to 6744. [2020-10-14 22:00:32,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6744 states. [2020-10-14 22:00:32,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6744 states to 6744 states and 8727 transitions. [2020-10-14 22:00:32,562 INFO L78 Accepts]: Start accepts. Automaton has 6744 states and 8727 transitions. Word has length 457 [2020-10-14 22:00:32,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:00:32,563 INFO L479 AbstractCegarLoop]: Abstraction has 6744 states and 8727 transitions. [2020-10-14 22:00:32,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:00:32,563 INFO L276 IsEmpty]: Start isEmpty. Operand 6744 states and 8727 transitions. [2020-10-14 22:00:32,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2020-10-14 22:00:32,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:00:32,578 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-14 22:00:32,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:00:32,579 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:00:32,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:00:32,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1533794967, now seen corresponding path program 1 times [2020-10-14 22:00:32,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:00:32,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469148083] [2020-10-14 22:00:32,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:00:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:32,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:32,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:33,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:34,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:36,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:36,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:36,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:37,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:37,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 494 [2020-10-14 22:00:37,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 22:00:37,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-14 22:00:37,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:37,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:37,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:00:37,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 22:00:37,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 285 [2020-10-14 22:00:37,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:37,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:00:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:37,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:37,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:37,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:00:37,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:00:37,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:37,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:37,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:37,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:00:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:37,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:37,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:37,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 22:00:37,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:37,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 22:00:37,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:37,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:37,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:00:37,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:37,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 22:00:37,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:37,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 22:00:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:38,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:38,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:38,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:38,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 22:00:38,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:00:38,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 521 [2020-10-14 22:00:38,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:38,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:38,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:38,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:00:38,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 22:00:38,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:38,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-10-14 22:00:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:38,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:38,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:38,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 22:00:38,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:38,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 22:00:38,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:38,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:38,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:38,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:00:38,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 22:00:38,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:38,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2020-10-14 22:00:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:38,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:38,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:38,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:00:38,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:38,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 22:00:38,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:38,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 22:00:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:38,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:39,297 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 257 proven. 223 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-14 22:00:39,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [469148083] [2020-10-14 22:00:39,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:00:39,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:00:39,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124919101] [2020-10-14 22:00:39,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:00:39,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:00:39,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:00:39,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:00:39,301 INFO L87 Difference]: Start difference. First operand 6744 states and 8727 transitions. Second operand 8 states. [2020-10-14 22:00:53,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:00:53,806 INFO L93 Difference]: Finished difference Result 17361 states and 23985 transitions. [2020-10-14 22:00:53,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:00:53,807 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 478 [2020-10-14 22:00:53,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:00:53,855 INFO L225 Difference]: With dead ends: 17361 [2020-10-14 22:00:53,855 INFO L226 Difference]: Without dead ends: 10612 [2020-10-14 22:00:53,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-14 22:00:53,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10612 states. [2020-10-14 22:00:54,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10612 to 8694. [2020-10-14 22:00:54,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8694 states. [2020-10-14 22:00:54,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8694 states to 8694 states and 11184 transitions. [2020-10-14 22:00:54,117 INFO L78 Accepts]: Start accepts. Automaton has 8694 states and 11184 transitions. Word has length 478 [2020-10-14 22:00:54,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:00:54,118 INFO L479 AbstractCegarLoop]: Abstraction has 8694 states and 11184 transitions. [2020-10-14 22:00:54,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:00:54,118 INFO L276 IsEmpty]: Start isEmpty. Operand 8694 states and 11184 transitions. [2020-10-14 22:00:54,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2020-10-14 22:00:54,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:00:54,134 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:00:54,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:00:54,135 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:00:54,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:00:54,135 INFO L82 PathProgramCache]: Analyzing trace with hash -566994021, now seen corresponding path program 1 times [2020-10-14 22:00:54,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:00:54,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463292499] [2020-10-14 22:00:54,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:00:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:54,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:54,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:55,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:56,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:58,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:58,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 502 [2020-10-14 22:00:58,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:00:58,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4134 [2020-10-14 22:00:58,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:58,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:58,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:58,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:00:58,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 22:00:58,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:58,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:00:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:58,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:58,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:58,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:00:58,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:58,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:00:58,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:58,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:58,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:58,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:58,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:58,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:58,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:00:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:58,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:58,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:58,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 22:00:58,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:58,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-14 22:00:58,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:58,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:58,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:00:58,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-14 22:00:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:58,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:00:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:58,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:59,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:59,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:00:59,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:59,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 22:00:59,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:59,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:00:59,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:00:59,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:59,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-14 22:00:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:59,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:59,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:59,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:00:59,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:59,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:00:59,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:59,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:59,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 22:00:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:59,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:59,447 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 172 proven. 75 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-14 22:00:59,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463292499] [2020-10-14 22:00:59,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:00:59,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:00:59,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229422856] [2020-10-14 22:00:59,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:00:59,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:00:59,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:00:59,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:00:59,450 INFO L87 Difference]: Start difference. First operand 8694 states and 11184 transitions. Second operand 7 states. [2020-10-14 22:01:11,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:01:11,769 INFO L93 Difference]: Finished difference Result 18058 states and 23373 transitions. [2020-10-14 22:01:11,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:01:11,772 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 488 [2020-10-14 22:01:11,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:01:11,805 INFO L225 Difference]: With dead ends: 18058 [2020-10-14 22:01:11,805 INFO L226 Difference]: Without dead ends: 9677 [2020-10-14 22:01:11,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:01:11,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9677 states. [2020-10-14 22:01:12,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9677 to 9659. [2020-10-14 22:01:12,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9659 states. [2020-10-14 22:01:12,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9659 states to 9659 states and 12341 transitions. [2020-10-14 22:01:12,047 INFO L78 Accepts]: Start accepts. Automaton has 9659 states and 12341 transitions. Word has length 488 [2020-10-14 22:01:12,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:01:12,048 INFO L479 AbstractCegarLoop]: Abstraction has 9659 states and 12341 transitions. [2020-10-14 22:01:12,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:01:12,049 INFO L276 IsEmpty]: Start isEmpty. Operand 9659 states and 12341 transitions. [2020-10-14 22:01:12,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2020-10-14 22:01:12,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:01:12,063 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:01:12,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:01:12,064 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:01:12,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:01:12,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1314853789, now seen corresponding path program 1 times [2020-10-14 22:01:12,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:01:12,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244422070] [2020-10-14 22:01:12,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:01:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:12,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:12,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:13,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:13,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:13,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 514 [2020-10-14 22:01:13,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:01:13,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1604 [2020-10-14 22:01:13,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:13,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:13,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:13,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 22:01:13,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 22:01:13,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:13,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:01:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:13,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:13,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:13,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:01:13,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:13,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:01:13,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:13,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:13,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:13,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:01:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:13,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:14,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:14,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:01:14,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:14,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 22:01:14,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:14,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:14,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:14,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:14,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:14,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:14,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:01:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:14,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:14,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:14,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:01:14,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:14,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 22:01:14,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:14,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:01:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:01:14,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:14,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:01:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:14,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:14,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:14,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:01:14,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:14,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:01:14,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:14,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:01:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:01:14,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:14,402 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 211 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 22:01:14,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244422070] [2020-10-14 22:01:14,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:01:14,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:01:14,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569052538] [2020-10-14 22:01:14,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:01:14,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:01:14,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:01:14,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:01:14,405 INFO L87 Difference]: Start difference. First operand 9659 states and 12341 transitions. Second operand 7 states. [2020-10-14 22:01:24,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:01:24,496 INFO L93 Difference]: Finished difference Result 20268 states and 27325 transitions. [2020-10-14 22:01:24,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:01:24,498 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 500 [2020-10-14 22:01:24,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:01:24,548 INFO L225 Difference]: With dead ends: 20268 [2020-10-14 22:01:24,549 INFO L226 Difference]: Without dead ends: 12479 [2020-10-14 22:01:24,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 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 22:01:24,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12479 states. [2020-10-14 22:01:24,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12479 to 12138. [2020-10-14 22:01:24,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12138 states. [2020-10-14 22:01:24,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12138 states to 12138 states and 15980 transitions. [2020-10-14 22:01:24,866 INFO L78 Accepts]: Start accepts. Automaton has 12138 states and 15980 transitions. Word has length 500 [2020-10-14 22:01:24,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:01:24,868 INFO L479 AbstractCegarLoop]: Abstraction has 12138 states and 15980 transitions. [2020-10-14 22:01:24,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:01:24,868 INFO L276 IsEmpty]: Start isEmpty. Operand 12138 states and 15980 transitions. [2020-10-14 22:01:24,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2020-10-14 22:01:24,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:01:24,881 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:01:24,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:01:24,882 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:01:24,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:01:24,883 INFO L82 PathProgramCache]: Analyzing trace with hash 8601197, now seen corresponding path program 1 times [2020-10-14 22:01:24,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:01:24,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587359379] [2020-10-14 22:01:24,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:01:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:25,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:25,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:26,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:27,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:27,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:28,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:28,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:28,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 559 [2020-10-14 22:01:28,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:01:28,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3523 [2020-10-14 22:01:28,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:28,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:28,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:28,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 22:01:28,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 22:01:28,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:28,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:01:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:28,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:28,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:28,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:01:28,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:28,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:01:28,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:28,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:28,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:28,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:28,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:28,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:28,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:01:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:28,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:28,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:28,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:01:28,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:28,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:01:28,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:28,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:28,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:28,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:28,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:28,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:28,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:01:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:28,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:28,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:28,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:01:28,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:28,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:01:28,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:28,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:28,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:01:28,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:28,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:01:28,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:28,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:01:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:28,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:29,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:29,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:29,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 22:01:29,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:01:29,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 22:01:29,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:29,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:29,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:29,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:01:29,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 22:01:29,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:29,292 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 22:01:29,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587359379] [2020-10-14 22:01:29,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:01:29,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:01:29,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034765060] [2020-10-14 22:01:29,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:01:29,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:01:29,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:01:29,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:01:29,295 INFO L87 Difference]: Start difference. First operand 12138 states and 15980 transitions. Second operand 7 states. [2020-10-14 22:01:45,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:01:45,007 INFO L93 Difference]: Finished difference Result 24023 states and 31897 transitions. [2020-10-14 22:01:45,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:01:45,009 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 545 [2020-10-14 22:01:45,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:01:45,051 INFO L225 Difference]: With dead ends: 24023 [2020-10-14 22:01:45,051 INFO L226 Difference]: Without dead ends: 12198 [2020-10-14 22:01:45,079 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 22:01:45,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12198 states. [2020-10-14 22:01:45,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12198 to 12146. [2020-10-14 22:01:45,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12146 states. [2020-10-14 22:01:45,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12146 states to 12146 states and 15460 transitions. [2020-10-14 22:01:45,299 INFO L78 Accepts]: Start accepts. Automaton has 12146 states and 15460 transitions. Word has length 545 [2020-10-14 22:01:45,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:01:45,300 INFO L479 AbstractCegarLoop]: Abstraction has 12146 states and 15460 transitions. [2020-10-14 22:01:45,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:01:45,300 INFO L276 IsEmpty]: Start isEmpty. Operand 12146 states and 15460 transitions. [2020-10-14 22:01:45,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2020-10-14 22:01:45,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:01:45,312 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:01:45,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:01:45,312 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:01:45,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:01:45,313 INFO L82 PathProgramCache]: Analyzing trace with hash -601043269, now seen corresponding path program 1 times [2020-10-14 22:01:45,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:01:45,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247164486] [2020-10-14 22:01:45,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:01:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:45,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:45,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:46,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:46,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:47,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:50,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:50,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 598 [2020-10-14 22:01:50,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:01:50,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-14 22:01:50,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:50,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:50,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:50,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 22:01:50,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 22:01:50,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:50,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:01:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:50,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:50,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:50,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:01:50,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:50,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:01:50,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:50,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:50,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:01:50,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:01:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:50,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:50,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:50,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:01:50,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:50,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:01:50,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:50,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:50,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:50,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:50,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:50,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:50,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:01:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:50,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:51,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:51,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:01:51,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:51,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 22:01:51,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:51,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:51,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:01:51,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:51,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:01:51,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:51,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:01:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:51,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:51,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:51,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 22:01:51,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:51,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 22:01:51,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:51,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:51,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:51,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:01:51,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 22:01:51,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:51,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2020-10-14 22:01:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:51,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:51,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:51,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:01:51,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:51,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:01:51,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:51,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:51,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:51,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 22:01:51,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:51,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:51,349 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 251 proven. 75 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2020-10-14 22:01:51,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247164486] [2020-10-14 22:01:51,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:01:51,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:01:51,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764134609] [2020-10-14 22:01:51,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:01:51,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:01:51,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:01:51,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:01:51,352 INFO L87 Difference]: Start difference. First operand 12146 states and 15460 transitions. Second operand 7 states. [2020-10-14 22:02:07,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:02:07,517 INFO L93 Difference]: Finished difference Result 24338 states and 31042 transitions. [2020-10-14 22:02:07,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:02:07,519 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 582 [2020-10-14 22:02:07,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:02:07,558 INFO L225 Difference]: With dead ends: 24338 [2020-10-14 22:02:07,558 INFO L226 Difference]: Without dead ends: 12505 [2020-10-14 22:02:07,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:02:07,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12505 states. [2020-10-14 22:02:07,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12505 to 12178. [2020-10-14 22:02:07,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12178 states. [2020-10-14 22:02:07,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12178 states to 12178 states and 14309 transitions. [2020-10-14 22:02:07,813 INFO L78 Accepts]: Start accepts. Automaton has 12178 states and 14309 transitions. Word has length 582 [2020-10-14 22:02:07,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:02:07,814 INFO L479 AbstractCegarLoop]: Abstraction has 12178 states and 14309 transitions. [2020-10-14 22:02:07,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:02:07,814 INFO L276 IsEmpty]: Start isEmpty. Operand 12178 states and 14309 transitions. [2020-10-14 22:02:07,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2020-10-14 22:02:07,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:02:07,832 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 22:02:07,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:02:07,832 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:02:07,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:02:07,833 INFO L82 PathProgramCache]: Analyzing trace with hash -230980077, now seen corresponding path program 1 times [2020-10-14 22:02:07,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:02:07,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447295375] [2020-10-14 22:02:07,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:02:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:08,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:08,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:08,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:09,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:09,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:10,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:12,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:12,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 644 [2020-10-14 22:02:12,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:02:12,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 22:02:12,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:12,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:12,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:02:12,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 22:02:12,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 22:02:12,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:02:13,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:02:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:13,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:13,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:13,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:02:13,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:13,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:02:13,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:13,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:13,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:02:13,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:02:13,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:02:13,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:02:13,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:02:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:13,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:13,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:13,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:02:13,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:13,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:02:13,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:13,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:13,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:02:13,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:02:13,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:02:13,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:02:13,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:02:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:13,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:13,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:13,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:02:13,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:13,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:02:13,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:13,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:13,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:02:13,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:02:13,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:02:13,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:02:13,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:02:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:13,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:13,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:13,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:13,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 22:02:13,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:02:13,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-14 22:02:13,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:13,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:13,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:02:13,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:02:13,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 22:02:13,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:02:13,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 22:02:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:13,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:13,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:13,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:02:13,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:13,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:02:13,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:13,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:13,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:02:13,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 22:02:13,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:02:13,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:02:13,923 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 324 proven. 75 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2020-10-14 22:02:13,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447295375] [2020-10-14 22:02:13,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:02:13,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:02:13,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226036633] [2020-10-14 22:02:13,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:02:13,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:02:13,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:02:13,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:02:13,925 INFO L87 Difference]: Start difference. First operand 12178 states and 14309 transitions. Second operand 7 states. [2020-10-14 22:02:31,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:02:31,066 INFO L93 Difference]: Finished difference Result 26549 states and 31782 transitions. [2020-10-14 22:02:31,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:02:31,070 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 628 [2020-10-14 22:02:31,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:02:31,131 INFO L225 Difference]: With dead ends: 26549 [2020-10-14 22:02:31,131 INFO L226 Difference]: Without dead ends: 16240 [2020-10-14 22:02:31,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:02:31,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16240 states. [2020-10-14 22:02:31,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16240 to 15001. [2020-10-14 22:02:31,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15001 states. [2020-10-14 22:02:31,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15001 states to 15001 states and 17396 transitions. [2020-10-14 22:02:31,455 INFO L78 Accepts]: Start accepts. Automaton has 15001 states and 17396 transitions. Word has length 628 [2020-10-14 22:02:31,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:02:31,456 INFO L479 AbstractCegarLoop]: Abstraction has 15001 states and 17396 transitions. [2020-10-14 22:02:31,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:02:31,456 INFO L276 IsEmpty]: Start isEmpty. Operand 15001 states and 17396 transitions. [2020-10-14 22:02:31,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2020-10-14 22:02:31,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:02:31,472 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:02:31,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:02:31,472 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:02:31,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:02:31,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1676381231, now seen corresponding path program 1 times [2020-10-14 22:02:31,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:02:31,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021984704] [2020-10-14 22:02:31,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:02:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:31,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:31,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:32,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:36,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:36,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 664 [2020-10-14 22:02:36,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:02:36,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-14 22:02:36,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:36,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:36,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 22:02:36,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 296 [2020-10-14 22:02:36,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 236 [2020-10-14 22:02:36,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:02:36,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:02:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:36,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:36,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:36,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:02:36,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:36,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:02:36,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:36,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:36,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:02:36,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:02:36,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:02:36,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:02:36,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:02:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:37,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:37,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:37,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:02:37,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:37,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-14 22:02:37,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:37,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:37,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:02:37,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:02:37,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 281 [2020-10-14 22:02:37,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:02:37,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:02:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:37,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:37,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:37,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:02:37,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:37,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-14 22:02:37,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:37,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:37,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:02:37,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:02:37,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:02:37,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:02:37,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:02:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:37,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:37,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:37,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 22:02:37,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:37,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 22:02:37,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:37,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:37,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:02:37,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:02:37,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:02:37,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:02:37,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2020-10-14 22:02:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:37,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:38,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:38,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:38,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:02:38,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:02:38,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-10-14 22:02:38,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:38,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:38,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:02:38,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:02:38,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-14 22:02:38,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:02:38,928 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 476 proven. 132 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-14 22:02:38,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2021984704] [2020-10-14 22:02:38,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:02:38,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 22:02:38,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920627465] [2020-10-14 22:02:38,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 22:02:38,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:02:38,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 22:02:38,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:02:38,930 INFO L87 Difference]: Start difference. First operand 15001 states and 17396 transitions. Second operand 11 states. [2020-10-14 22:02:43,139 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 33 [2020-10-14 22:02:43,514 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47