/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 SingleStatement --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=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:37:45,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:37:45,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:37:45,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:37:45,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:37:45,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:37:45,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:37:45,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:37:45,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:37:45,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:37:45,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:37:45,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:37:45,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:37:45,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:37:45,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:37:45,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:37:45,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:37:46,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:37:46,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:37:46,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:37:46,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:37:46,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:37:46,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:37:46,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:37:46,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:37:46,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:37:46,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:37:46,024 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:37:46,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:37:46,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:37:46,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:37:46,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:37:46,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:37:46,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:37:46,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:37:46,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:37:46,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:37:46,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:37:46,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:37:46,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:37:46,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:37:46,051 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 [2020-09-25 14:37:46,100 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:37:46,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:37:46,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:37:46,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:37:46,104 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:37:46,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:37:46,104 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:37:46,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:37:46,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:37:46,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:37:46,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:37:46,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:37:46,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:37:46,107 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:37:46,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:37:46,108 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:37:46,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:37:46,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:37:46,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:37:46,108 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:37:46,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:37:46,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:37:46,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:37:46,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:37:46,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:37:46,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:37:46,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:37:46,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:37:46,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:37:46,110 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 -> SingleStatement 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=0.5;log-additional-information=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=0.5;log-additional-information=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=0.5;log-additional-information=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=0.5;log-additional-information=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=0.5;log-additional-information=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=0.5;log-additional-information=true; [2020-09-25 14:37:46,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:37:46,622 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:37:46,627 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:37:46,629 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:37:46,630 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:37:46,631 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-09-25 14:37:46,729 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1835e5d1/e8cf0318fea74d0188c189dbb7ba6f68/FLAG1fdf24839 [2020-09-25 14:37:47,412 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:37:47,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-09-25 14:37:47,430 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1835e5d1/e8cf0318fea74d0188c189dbb7ba6f68/FLAG1fdf24839 [2020-09-25 14:37:47,633 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1835e5d1/e8cf0318fea74d0188c189dbb7ba6f68 [2020-09-25 14:37:47,650 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:37:47,657 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:37:47,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:37:47,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:37:47,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:37:47,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:37:47" (1/1) ... [2020-09-25 14:37:47,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f80c2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:37:47, skipping insertion in model container [2020-09-25 14:37:47,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:37:47" (1/1) ... [2020-09-25 14:37:47,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:37:47,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:37:48,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:37:48,211 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:37:48,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:37:48,506 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:37:48,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:37:48 WrapperNode [2020-09-25 14:37:48,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:37:48,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:37:48,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:37:48,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:37:48,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:37:48" (1/1) ... [2020-09-25 14:37:48,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:37:48" (1/1) ... [2020-09-25 14:37:48,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:37:48" (1/1) ... [2020-09-25 14:37:48,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:37:48" (1/1) ... [2020-09-25 14:37:48,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:37:48" (1/1) ... [2020-09-25 14:37:48,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:37:48" (1/1) ... [2020-09-25 14:37:48,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:37:48" (1/1) ... [2020-09-25 14:37:48,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:37:48,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:37:48,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:37:48,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:37:48,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:37:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:37:48,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:37:48,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:37:48,721 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 14:37:48,721 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:37:48,721 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 14:37:48,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:37:48,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:37:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 14:37:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:37:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:37:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:37:50,116 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:37:50,116 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 14:37:50,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:37:50 BoogieIcfgContainer [2020-09-25 14:37:50,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:37:50,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:37:50,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:37:50,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:37:50,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:37:47" (1/3) ... [2020-09-25 14:37:50,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9e9bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:37:50, skipping insertion in model container [2020-09-25 14:37:50,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:37:48" (2/3) ... [2020-09-25 14:37:50,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9e9bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:37:50, skipping insertion in model container [2020-09-25 14:37:50,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:37:50" (3/3) ... [2020-09-25 14:37:50,136 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label53.c [2020-09-25 14:37:50,148 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:37:50,159 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:37:50,182 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:37:50,218 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:37:50,218 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:37:50,219 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:37:50,219 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:37:50,219 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:37:50,219 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:37:50,219 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:37:50,220 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:37:50,252 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states. [2020-09-25 14:37:50,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:37:50,274 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:37:50,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:37:50,276 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:37:50,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:37:50,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1414748743, now seen corresponding path program 1 times [2020-09-25 14:37:50,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:37:50,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251981973] [2020-09-25 14:37:50,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:37:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:37:50,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:37:51,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:37:51,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:37:52,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:37:54,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:37:55,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:37:55,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 14:37:55,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:37:55,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 14:37:55,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:37:55,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:37:55,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:37:55,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 14:37:55,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-25 14:37:55,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:37:55,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:37:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:37:55,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:37:55,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:37:55,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:37:55,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:37:55,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 14:37:55,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:37:55,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:37:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:37:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:37:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 14:37:55,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:37:55,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:37:55,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251981973] [2020-09-25 14:37:55,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:37:55,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:37:55,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858956718] [2020-09-25 14:37:55,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:37:55,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:37:56,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:37:56,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:37:56,006 INFO L87 Difference]: Start difference. First operand 525 states. Second operand 5 states. [2020-09-25 14:37:58,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:37:58,312 INFO L93 Difference]: Finished difference Result 1259 states and 1658 transitions. [2020-09-25 14:37:58,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:37:58,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-09-25 14:37:58,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:37:58,349 INFO L225 Difference]: With dead ends: 1259 [2020-09-25 14:37:58,349 INFO L226 Difference]: Without dead ends: 685 [2020-09-25 14:37:58,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:37:58,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2020-09-25 14:37:58,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 603. [2020-09-25 14:37:58,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-09-25 14:37:58,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 725 transitions. [2020-09-25 14:37:58,488 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 725 transitions. Word has length 142 [2020-09-25 14:37:58,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:37:58,490 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 725 transitions. [2020-09-25 14:37:58,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:37:58,490 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 725 transitions. [2020-09-25 14:37:58,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 14:37:58,500 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:37:58,500 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 14:37:58,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:37:58,501 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:37:58,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:37:58,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1681317672, now seen corresponding path program 1 times [2020-09-25 14:37:58,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:37:58,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [817163339] [2020-09-25 14:37:58,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:37:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:37:58,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:37:58,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:37:59,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:37:59,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:03,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:38:03,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 14:38:03,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:38:03,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 14:38:03,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:38:03,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:38:03,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:38:03,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 14:38:03,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-25 14:38:03,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:38:03,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:38:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:38:03,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:03,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:38:03,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:38:03,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:38:03,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 14:38:03,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:38:03,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:38:03,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:38:03,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:38:03,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:38:03,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:38:03,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 14:38:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:38:03,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:03,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:03,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:38:03,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:38:03,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:38:03,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 14:38:03,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:38:03,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:38:03,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:38:03,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:38:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:38:03,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:38:04,178 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:38:04,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [817163339] [2020-09-25 14:38:04,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:38:04,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 14:38:04,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58559695] [2020-09-25 14:38:04,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:38:04,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:38:04,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:38:04,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:38:04,183 INFO L87 Difference]: Start difference. First operand 603 states and 725 transitions. Second operand 11 states. [2020-09-25 14:38:09,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:38:09,193 INFO L93 Difference]: Finished difference Result 2304 states and 3129 transitions. [2020-09-25 14:38:09,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 14:38:09,194 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 163 [2020-09-25 14:38:09,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:38:09,206 INFO L225 Difference]: With dead ends: 2304 [2020-09-25 14:38:09,207 INFO L226 Difference]: Without dead ends: 1328 [2020-09-25 14:38:09,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=118, Invalid=188, Unknown=0, NotChecked=0, Total=306 [2020-09-25 14:38:09,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2020-09-25 14:38:09,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1302. [2020-09-25 14:38:09,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1302 states. [2020-09-25 14:38:09,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1532 transitions. [2020-09-25 14:38:09,288 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1532 transitions. Word has length 163 [2020-09-25 14:38:09,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:38:09,289 INFO L479 AbstractCegarLoop]: Abstraction has 1302 states and 1532 transitions. [2020-09-25 14:38:09,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:38:09,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1532 transitions. [2020-09-25 14:38:09,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 14:38:09,304 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:38:09,305 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:38:09,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:38:09,306 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:38:09,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:38:09,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1302141170, now seen corresponding path program 1 times [2020-09-25 14:38:09,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:38:09,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299612077] [2020-09-25 14:38:09,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:38:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:38:09,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:09,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:09,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:10,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:11,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:11,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:14,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:38:14,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-25 14:38:14,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:38:14,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 14:38:14,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:38:14,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:38:14,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:38:14,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 14:38:14,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 14:38:14,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:38:14,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:38:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:38:14,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:14,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:38:14,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:38:14,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:38:14,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:38:14,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:38:14,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:38:14,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:38:14,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:38:14,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:38:14,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:38:14,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 14:38:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:38:14,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:14,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:38:14,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:38:14,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:38:14,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 14:38:14,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:38:14,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:38:14,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:38:14,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:38:14,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:38:14,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:38:14,737 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:38:14,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299612077] [2020-09-25 14:38:14,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:38:14,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 14:38:14,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414870577] [2020-09-25 14:38:14,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:38:14,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:38:14,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:38:14,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:38:14,741 INFO L87 Difference]: Start difference. First operand 1302 states and 1532 transitions. Second operand 5 states. [2020-09-25 14:38:16,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:38:16,650 INFO L93 Difference]: Finished difference Result 1909 states and 2273 transitions. [2020-09-25 14:38:16,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:38:16,652 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 177 [2020-09-25 14:38:16,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:38:16,664 INFO L225 Difference]: With dead ends: 1909 [2020-09-25 14:38:16,664 INFO L226 Difference]: Without dead ends: 1907 [2020-09-25 14:38:16,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:38:16,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2020-09-25 14:38:16,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1590. [2020-09-25 14:38:16,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1590 states. [2020-09-25 14:38:16,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 1920 transitions. [2020-09-25 14:38:16,726 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 1920 transitions. Word has length 177 [2020-09-25 14:38:16,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:38:16,727 INFO L479 AbstractCegarLoop]: Abstraction has 1590 states and 1920 transitions. [2020-09-25 14:38:16,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:38:16,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 1920 transitions. [2020-09-25 14:38:16,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 14:38:16,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:38:16,736 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 14:38:16,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:38:16,736 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:38:16,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:38:16,737 INFO L82 PathProgramCache]: Analyzing trace with hash 377466591, now seen corresponding path program 1 times [2020-09-25 14:38:16,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:38:16,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884398823] [2020-09-25 14:38:16,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:38:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:38:16,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:16,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:17,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:17,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:17,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:17,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:17,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:17,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:17,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:18,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:21,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:38:21,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 14:38:21,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 14:38:21,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 14:38:21,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:38:21,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:38:21,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:38:21,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 14:38:21,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-25 14:38:21,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:38:22,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:38:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:38:22,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:22,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:38:22,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:38:22,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:38:22,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 14:38:22,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:38:22,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:38:22,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:38:22,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:38:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:38:22,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:38:22,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 14:38:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:38:22,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:22,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:22,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:38:22,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 14:38:22,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:38:22,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 14:38:22,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:38:22,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:38:22,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:38:22,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:38:22,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:38:22,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:38:22,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-25 14:38:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:38:22,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:22,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:22,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:38:22,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:38:22,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:38:22,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 14:38:22,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:38:22,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:38:22,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:38:22,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:38:22,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 14:38:22,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:38:22,714 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-25 14:38:22,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1884398823] [2020-09-25 14:38:22,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:38:22,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 14:38:22,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576067311] [2020-09-25 14:38:22,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:38:22,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:38:22,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:38:22,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:38:22,717 INFO L87 Difference]: Start difference. First operand 1590 states and 1920 transitions. Second operand 11 states. [2020-09-25 14:38:28,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:38:28,292 INFO L93 Difference]: Finished difference Result 4898 states and 5921 transitions. [2020-09-25 14:38:28,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 14:38:28,294 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 195 [2020-09-25 14:38:28,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:38:28,317 INFO L225 Difference]: With dead ends: 4898 [2020-09-25 14:38:28,317 INFO L226 Difference]: Without dead ends: 3141 [2020-09-25 14:38:28,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-09-25 14:38:28,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2020-09-25 14:38:28,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 2657. [2020-09-25 14:38:28,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2657 states. [2020-09-25 14:38:28,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 3211 transitions. [2020-09-25 14:38:28,480 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 3211 transitions. Word has length 195 [2020-09-25 14:38:28,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:38:28,482 INFO L479 AbstractCegarLoop]: Abstraction has 2657 states and 3211 transitions. [2020-09-25 14:38:28,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:38:28,483 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 3211 transitions. [2020-09-25 14:38:28,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 14:38:28,501 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:38:28,501 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 14:38:28,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:38:28,502 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:38:28,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:38:28,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1870432289, now seen corresponding path program 1 times [2020-09-25 14:38:28,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:38:28,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478237075] [2020-09-25 14:38:28,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:38:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:38:28,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:28,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:28,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:29,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:29,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:29,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:29,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:29,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:29,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:30,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:30,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:38:33,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:38:33,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 14:38:33,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 14:38:33,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 14:38:33,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:38:33,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:38:33,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 14:38:33,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 14:38:33,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-09-25 14:38:33,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:38:34,299 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2020-09-25 14:38:34,508 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50 [2020-09-25 14:38:34,804 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 53 [2020-09-25 14:38:35,084 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 50 [2020-09-25 14:38:35,352 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 46