/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=DEEPEST --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 language data_model -i ../../../trunk/examples/svcomp/systemc/pipeline.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 01:03:08,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 01:03:08,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 01:03:08,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 01:03:08,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 01:03:08,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 01:03:08,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 01:03:08,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 01:03:08,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 01:03:08,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 01:03:08,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 01:03:08,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 01:03:08,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 01:03:08,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 01:03:08,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 01:03:08,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 01:03:08,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 01:03:08,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 01:03:08,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 01:03:08,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 01:03:08,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 01:03:08,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 01:03:08,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 01:03:08,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 01:03:08,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 01:03:08,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 01:03:08,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 01:03:08,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 01:03:08,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 01:03:08,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 01:03:08,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 01:03:08,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 01:03:08,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 01:03:08,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 01:03:08,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 01:03:08,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 01:03:08,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 01:03:08,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 01:03:08,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 01:03:08,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 01:03:08,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 01:03:08,571 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 [2020-10-28 01:03:08,624 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 01:03:08,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 01:03:08,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 01:03:08,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 01:03:08,631 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 01:03:08,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 01:03:08,631 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 01:03:08,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 01:03:08,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 01:03:08,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 01:03:08,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 01:03:08,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 01:03:08,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 01:03:08,634 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 01:03:08,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 01:03:08,634 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 01:03:08,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 01:03:08,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 01:03:08,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 01:03:08,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 01:03:08,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 01:03:08,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 01:03:08,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 01:03:08,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 01:03:08,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 01:03:08,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 01:03:08,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 01:03:08,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 01:03:08,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 01:03:08,637 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 01:03:09,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 01:03:09,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 01:03:09,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 01:03:09,108 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 01:03:09,109 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 01:03:09,110 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pipeline.cil-2.c [2020-10-28 01:03:09,183 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4ef6cc2c/49f1983e30e84a11bbb231ddade301f8/FLAG096bf6dae [2020-10-28 01:03:09,896 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 01:03:09,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/pipeline.cil-2.c [2020-10-28 01:03:09,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4ef6cc2c/49f1983e30e84a11bbb231ddade301f8/FLAG096bf6dae [2020-10-28 01:03:10,184 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4ef6cc2c/49f1983e30e84a11bbb231ddade301f8 [2020-10-28 01:03:10,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 01:03:10,195 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 01:03:10,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 01:03:10,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 01:03:10,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 01:03:10,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 01:03:10" (1/1) ... [2020-10-28 01:03:10,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a16208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:10, skipping insertion in model container [2020-10-28 01:03:10,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 01:03:10" (1/1) ... [2020-10-28 01:03:10,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 01:03:10,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 01:03:10,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 01:03:10,552 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 01:03:10,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 01:03:10,715 INFO L208 MainTranslator]: Completed translation [2020-10-28 01:03:10,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:10 WrapperNode [2020-10-28 01:03:10,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 01:03:10,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 01:03:10,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 01:03:10,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 01:03:10,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:10" (1/1) ... [2020-10-28 01:03:10,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:10" (1/1) ... [2020-10-28 01:03:10,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:10" (1/1) ... [2020-10-28 01:03:10,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:10" (1/1) ... [2020-10-28 01:03:10,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:10" (1/1) ... [2020-10-28 01:03:10,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:10" (1/1) ... [2020-10-28 01:03:10,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:10" (1/1) ... [2020-10-28 01:03:10,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 01:03:10,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 01:03:10,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 01:03:10,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 01:03:10,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:10" (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 [2020-10-28 01:03:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 01:03:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 01:03:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 01:03:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-10-28 01:03:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure N_generate [2020-10-28 01:03:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure S1_addsub [2020-10-28 01:03:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure S2_presdbl [2020-10-28 01:03:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure S3_zero [2020-10-28 01:03:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure D_print [2020-10-28 01:03:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-10-28 01:03:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-10-28 01:03:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 01:03:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 01:03:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 01:03:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 01:03:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 01:03:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 01:03:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-10-28 01:03:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure N_generate [2020-10-28 01:03:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure S1_addsub [2020-10-28 01:03:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure S2_presdbl [2020-10-28 01:03:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure S3_zero [2020-10-28 01:03:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure D_print [2020-10-28 01:03:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-10-28 01:03:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-10-28 01:03:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 01:03:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 01:03:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 01:03:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 01:03:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 01:03:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 01:03:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 01:03:12,040 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 01:03:12,040 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-28 01:03:12,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 01:03:12 BoogieIcfgContainer [2020-10-28 01:03:12,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 01:03:12,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 01:03:12,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 01:03:12,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 01:03:12,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 01:03:10" (1/3) ... [2020-10-28 01:03:12,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2917f896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 01:03:12, skipping insertion in model container [2020-10-28 01:03:12,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:10" (2/3) ... [2020-10-28 01:03:12,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2917f896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 01:03:12, skipping insertion in model container [2020-10-28 01:03:12,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 01:03:12" (3/3) ... [2020-10-28 01:03:12,052 INFO L111 eAbstractionObserver]: Analyzing ICFG pipeline.cil-2.c [2020-10-28 01:03:12,062 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 01:03:12,067 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 01:03:12,080 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 01:03:12,108 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 01:03:12,109 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 01:03:12,109 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 01:03:12,109 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 01:03:12,109 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 01:03:12,109 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 01:03:12,109 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 01:03:12,110 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 01:03:12,133 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states. [2020-10-28 01:03:12,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-28 01:03:12,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:03:12,149 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 01:03:12,149 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:03:12,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:03:12,156 INFO L82 PathProgramCache]: Analyzing trace with hash 252079489, now seen corresponding path program 1 times [2020-10-28 01:03:12,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:03:12,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1818483566] [2020-10-28 01:03:12,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:03:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:12,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:12,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:12,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:12,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:12,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:13,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:13,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:13,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:13,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:13,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:13,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:14,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:14,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:14,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:14,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:14,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:15,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:17,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:17,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 01:03:17,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-28 01:03:17,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-28 01:03:17,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:17,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 01:03:17,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-28 01:03:17,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 01:03:17,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 01:03:18,086 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 01:03:18,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:03:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:18,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:18,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:03:18,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:03:18,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 01:03:18,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:18,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:03:18,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:03:18,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:03:18,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:03:18,345 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 01:03:18,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:03:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:18,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:18,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-28 01:03:18,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 01:03:18,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-10-28 01:03:18,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:18,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:03:18,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 01:03:18,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:03:18,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:03:18,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 01:03:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:18,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:18,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:19,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:19,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-28 01:03:19,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 01:03:19,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-28 01:03:19,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:19,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:03:19,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 01:03:19,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:03:19,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-28 01:03:19,118 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-28 01:03:19,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1818483566] [2020-10-28 01:03:19,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 01:03:19,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 01:03:19,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244089456] [2020-10-28 01:03:19,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 01:03:19,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:03:19,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 01:03:19,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 01:03:19,149 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 5 states. [2020-10-28 01:03:19,817 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 01:03:21,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:03:21,561 INFO L93 Difference]: Finished difference Result 441 states and 743 transitions. [2020-10-28 01:03:21,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 01:03:21,565 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2020-10-28 01:03:21,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:03:21,582 INFO L225 Difference]: With dead ends: 441 [2020-10-28 01:03:21,582 INFO L226 Difference]: Without dead ends: 261 [2020-10-28 01:03:21,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 01:03:21,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-10-28 01:03:21,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 200. [2020-10-28 01:03:21,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-28 01:03:21,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 326 transitions. [2020-10-28 01:03:21,667 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 326 transitions. Word has length 100 [2020-10-28 01:03:21,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:03:21,668 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 326 transitions. [2020-10-28 01:03:21,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 01:03:21,668 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 326 transitions. [2020-10-28 01:03:21,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-28 01:03:21,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:03:21,686 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:03:21,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 01:03:21,686 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:03:21,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:03:21,687 INFO L82 PathProgramCache]: Analyzing trace with hash 664479854, now seen corresponding path program 1 times [2020-10-28 01:03:21,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:03:21,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502198721] [2020-10-28 01:03:21,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:03:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:21,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:21,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:21,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:21,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:21,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:22,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:22,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:22,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:22,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:22,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:22,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:22,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:22,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:22,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:22,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:22,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:22,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:24,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:24,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:26,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:26,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-28 01:03:26,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-28 01:03:26,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-28 01:03:26,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:26,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:03:26,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-28 01:03:26,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 01:03:26,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:03:27,083 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 01:03:27,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:03:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:27,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:27,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:27,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:03:27,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:03:27,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 01:03:27,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:27,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:03:27,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:03:27,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:03:27,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:03:27,244 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 01:03:27,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:03:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:27,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:27,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:27,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:27,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:27,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:27,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:27,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:27,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:27,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:27,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:27,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:27,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:27,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:27,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:32,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:32,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-28 01:03:32,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-28 01:03:32,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 01:03:32,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:03:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-28 01:03:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 01:03:32,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:03:32,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 01:03:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:32,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:32,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:32,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 01:03:32,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:03:32,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 01:03:32,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:03:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:03:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 01:03:32,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:03:32,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 01:03:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:32,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:32,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:32,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:32,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:32,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:32,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:32,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:32,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:32,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:32,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:33,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:33,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:33,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:33,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:33,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:33,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:33,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:33,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:37,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:37,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 01:03:37,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-28 01:03:37,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 01:03:37,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:37,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:03:37,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 01:03:37,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 01:03:37,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:03:37,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 01:03:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:37,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:37,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:37,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 01:03:37,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:03:37,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 01:03:37,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:37,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:03:37,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:03:37,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 01:03:37,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:03:37,605 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-10-28 01:03:37,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502198721] [2020-10-28 01:03:37,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 01:03:37,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 01:03:37,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580500230] [2020-10-28 01:03:37,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 01:03:37,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:03:37,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 01:03:37,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 01:03:37,612 INFO L87 Difference]: Start difference. First operand 200 states and 326 transitions. Second operand 6 states. [2020-10-28 01:03:37,904 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 01:03:39,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:03:39,483 INFO L93 Difference]: Finished difference Result 661 states and 1088 transitions. [2020-10-28 01:03:39,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 01:03:39,484 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 204 [2020-10-28 01:03:39,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:03:39,490 INFO L225 Difference]: With dead ends: 661 [2020-10-28 01:03:39,490 INFO L226 Difference]: Without dead ends: 491 [2020-10-28 01:03:39,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 01:03:39,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-10-28 01:03:39,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 364. [2020-10-28 01:03:39,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-10-28 01:03:39,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 600 transitions. [2020-10-28 01:03:39,577 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 600 transitions. Word has length 204 [2020-10-28 01:03:39,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:03:39,580 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 600 transitions. [2020-10-28 01:03:39,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 01:03:39,580 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 600 transitions. [2020-10-28 01:03:39,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-28 01:03:39,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:03:39,589 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:03:39,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 01:03:39,590 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:03:39,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:03:39,590 INFO L82 PathProgramCache]: Analyzing trace with hash -464840594, now seen corresponding path program 1 times [2020-10-28 01:03:39,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:03:39,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [130122569] [2020-10-28 01:03:39,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:03:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:39,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:39,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:39,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:39,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:39,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:39,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:39,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:39,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:39,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:39,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:39,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:39,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:39,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:40,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:40,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:40,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:41,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:41,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:43,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:43,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:43,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:43,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:43,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:43,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:43,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:43,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:44,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:44,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-28 01:03:44,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 26 [2020-10-28 01:03:44,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-28 01:03:44,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:44,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:03:44,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-28 01:03:44,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 01:03:44,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:03:44,967 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 01:03:44,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:03:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:44,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:44,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:44,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:03:44,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:03:44,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 01:03:44,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:44,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:03:44,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:03:44,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:03:44,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:03:45,160 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 01:03:45,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:03:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:45,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:45,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:45,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:45,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:45,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:45,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:45,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:45,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:45,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:46,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:46,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:46,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:46,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:46,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:46,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:46,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:46,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:50,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:50,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-28 01:03:50,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-28 01:03:50,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 01:03:50,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:50,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:03:50,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-28 01:03:50,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 01:03:50,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:03:50,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 01:03:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:50,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:50,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:50,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 01:03:50,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:03:50,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 01:03:50,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:50,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:03:50,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:03:50,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 01:03:50,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:03:50,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 01:03:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:50,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:50,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:50,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:50,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:50,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:50,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:50,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:50,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:51,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:51,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:51,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:51,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:51,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:52,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:55,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:55,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 01:03:55,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-28 01:03:55,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 01:03:55,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:55,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:03:55,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-28 01:03:55,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 01:03:55,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:03:55,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 01:03:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:55,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:55,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:03:55,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 01:03:55,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:03:55,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 01:03:55,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:03:55,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:03:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:03:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 01:03:55,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:03:55,434 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-10-28 01:03:55,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [130122569] [2020-10-28 01:03:55,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 01:03:55,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 01:03:55,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267611513] [2020-10-28 01:03:55,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 01:03:55,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:03:55,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 01:03:55,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 01:03:55,437 INFO L87 Difference]: Start difference. First operand 364 states and 600 transitions. Second operand 6 states. [2020-10-28 01:03:55,707 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 01:03:56,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:03:56,759 INFO L93 Difference]: Finished difference Result 1251 states and 2094 transitions. [2020-10-28 01:03:56,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 01:03:56,760 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 204 [2020-10-28 01:03:56,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:03:56,769 INFO L225 Difference]: With dead ends: 1251 [2020-10-28 01:03:56,769 INFO L226 Difference]: Without dead ends: 917 [2020-10-28 01:03:56,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 01:03:56,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-10-28 01:03:56,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 696. [2020-10-28 01:03:56,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2020-10-28 01:03:56,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 1163 transitions. [2020-10-28 01:03:56,864 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 1163 transitions. Word has length 204 [2020-10-28 01:03:56,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:03:56,864 INFO L481 AbstractCegarLoop]: Abstraction has 696 states and 1163 transitions. [2020-10-28 01:03:56,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 01:03:56,864 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 1163 transitions. [2020-10-28 01:03:56,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-28 01:03:56,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:03:56,871 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:03:56,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 01:03:56,872 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:03:56,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:03:56,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1114036114, now seen corresponding path program 1 times [2020-10-28 01:03:56,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:03:56,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458530973] [2020-10-28 01:03:56,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:03:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:03:56,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:56,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:57,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:57,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:57,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:57,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:57,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:57,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:57,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:57,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:57,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:57,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:57,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:57,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:57,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:57,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:57,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:58,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:58,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:59,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:59,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:59,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:59,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:59,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:03:59,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:01,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:01,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-28 01:04:01,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 25 [2020-10-28 01:04:01,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-28 01:04:01,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:01,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:04:01,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-28 01:04:01,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 01:04:01,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:02,197 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 01:04:02,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:04:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:02,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:02,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:04:02,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:04:02,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 01:04:02,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:04:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:04:02,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:04:02,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:02,368 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 01:04:02,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:04:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:02,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:02,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:03,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:03,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:03,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:03,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:07,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:07,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-28 01:04:07,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-28 01:04:07,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 01:04:07,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:07,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:04:07,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-28 01:04:07,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 01:04:07,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:07,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 01:04:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:07,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:07,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:07,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 01:04:07,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:04:07,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 01:04:07,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:04:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:04:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:04:07,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:07,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 01:04:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:07,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:07,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:07,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:07,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:07,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:07,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:07,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:07,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:07,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:07,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:07,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:07,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:07,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:12,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:12,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 01:04:12,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-28 01:04:12,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 01:04:12,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:12,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:04:12,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-28 01:04:12,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 01:04:12,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:12,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 01:04:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:12,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:12,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:12,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 01:04:12,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:04:12,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 01:04:12,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:04:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:04:12,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 01:04:12,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:12,628 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-28 01:04:12,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [458530973] [2020-10-28 01:04:12,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 01:04:12,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 01:04:12,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511661256] [2020-10-28 01:04:12,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 01:04:12,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:04:12,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 01:04:12,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 01:04:12,633 INFO L87 Difference]: Start difference. First operand 696 states and 1163 transitions. Second operand 7 states. [2020-10-28 01:04:12,893 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 01:04:14,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:04:14,103 INFO L93 Difference]: Finished difference Result 2674 states and 4649 transitions. [2020-10-28 01:04:14,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 01:04:14,104 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-10-28 01:04:14,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:04:14,127 INFO L225 Difference]: With dead ends: 2674 [2020-10-28 01:04:14,127 INFO L226 Difference]: Without dead ends: 2010 [2020-10-28 01:04:14,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-28 01:04:14,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2010 states. [2020-10-28 01:04:14,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2010 to 1603. [2020-10-28 01:04:14,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1603 states. [2020-10-28 01:04:14,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1603 states to 1603 states and 2774 transitions. [2020-10-28 01:04:14,295 INFO L78 Accepts]: Start accepts. Automaton has 1603 states and 2774 transitions. Word has length 204 [2020-10-28 01:04:14,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:04:14,296 INFO L481 AbstractCegarLoop]: Abstraction has 1603 states and 2774 transitions. [2020-10-28 01:04:14,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 01:04:14,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1603 states and 2774 transitions. [2020-10-28 01:04:14,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-28 01:04:14,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:04:14,320 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:04:14,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 01:04:14,320 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:04:14,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:04:14,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1109519730, now seen corresponding path program 1 times [2020-10-28 01:04:14,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:04:14,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204504662] [2020-10-28 01:04:14,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:04:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:14,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:14,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:14,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:14,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:14,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:14,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:14,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:14,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:14,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:14,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:14,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:14,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:14,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:14,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:14,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:14,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:15,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:15,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:15,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:15,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:15,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:15,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:15,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:19,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:19,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-28 01:04:19,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-28 01:04:19,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-28 01:04:19,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:04:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-28 01:04:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 01:04:19,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:19,645 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 01:04:19,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:04:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:19,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:19,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:19,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:04:19,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:04:19,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 01:04:19,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:19,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:04:19,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:04:19,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:04:19,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:19,813 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 01:04:19,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:04:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:19,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:19,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:19,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:19,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:19,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:19,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:19,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:19,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:20,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:20,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:20,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:20,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:20,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:20,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:21,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:24,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:24,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-28 01:04:24,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-28 01:04:24,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 01:04:24,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:24,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:04:24,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-28 01:04:24,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 01:04:24,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:24,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 01:04:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:24,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:24,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:24,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 01:04:24,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:04:24,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 01:04:24,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:24,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:04:24,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:04:24,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 01:04:24,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:24,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 01:04:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:24,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:24,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:24,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:24,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:24,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:24,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:25,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:25,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:25,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:25,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:25,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:25,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:25,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:25,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:25,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:29,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:29,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:29,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:29,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:29,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:29,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:29,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:29,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:29,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:29,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 01:04:29,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-28 01:04:29,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 01:04:29,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:29,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:04:29,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 01:04:29,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 01:04:29,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:29,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 01:04:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:29,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:29,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:29,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 01:04:29,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:04:29,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 01:04:29,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:29,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:04:29,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:04:29,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 01:04:29,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:30,037 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-28 01:04:30,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204504662] [2020-10-28 01:04:30,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 01:04:30,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 01:04:30,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025773206] [2020-10-28 01:04:30,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 01:04:30,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:04:30,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 01:04:30,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 01:04:30,040 INFO L87 Difference]: Start difference. First operand 1603 states and 2774 transitions. Second operand 7 states. [2020-10-28 01:04:30,367 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 01:04:31,173 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 01:04:31,424 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 01:04:32,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:04:32,969 INFO L93 Difference]: Finished difference Result 9394 states and 18187 transitions. [2020-10-28 01:04:32,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 01:04:32,969 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-10-28 01:04:32,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:04:33,142 INFO L225 Difference]: With dead ends: 9394 [2020-10-28 01:04:33,143 INFO L226 Difference]: Without dead ends: 7830 [2020-10-28 01:04:33,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-28 01:04:33,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7830 states. [2020-10-28 01:04:33,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7830 to 6287. [2020-10-28 01:04:33,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6287 states. [2020-10-28 01:04:34,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6287 states to 6287 states and 12254 transitions. [2020-10-28 01:04:34,031 INFO L78 Accepts]: Start accepts. Automaton has 6287 states and 12254 transitions. Word has length 204 [2020-10-28 01:04:34,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:04:34,032 INFO L481 AbstractCegarLoop]: Abstraction has 6287 states and 12254 transitions. [2020-10-28 01:04:34,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 01:04:34,032 INFO L276 IsEmpty]: Start isEmpty. Operand 6287 states and 12254 transitions. [2020-10-28 01:04:34,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-28 01:04:34,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:04:34,214 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:04:34,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 01:04:34,214 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:04:34,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:04:34,215 INFO L82 PathProgramCache]: Analyzing trace with hash -202916486, now seen corresponding path program 1 times [2020-10-28 01:04:34,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:04:34,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445172265] [2020-10-28 01:04:34,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:04:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:34,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:34,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:34,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:34,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:34,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:34,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:34,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:34,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:34,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:34,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:34,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:34,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:34,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:34,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:34,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:35,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:35,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:35,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:35,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:35,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:38,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:38,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:39,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:39,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-28 01:04:39,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 22 [2020-10-28 01:04:39,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-28 01:04:39,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:39,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:04:39,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-28 01:04:39,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 01:04:39,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:39,533 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 01:04:39,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:04:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:39,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:39,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:39,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:04:39,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:04:39,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 01:04:39,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:04:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:04:39,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:04:39,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:39,694 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 01:04:39,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:04:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:39,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:39,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:39,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:39,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:39,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:39,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:39,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:39,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:39,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:40,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:40,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:40,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:40,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:40,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:42,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:42,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:42,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:42,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:43,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:43,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:43,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:44,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:44,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-28 01:04:44,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-28 01:04:44,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 01:04:44,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:44,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:04:44,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-28 01:04:44,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-28 01:04:44,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:44,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 01:04:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:44,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:44,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:44,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 01:04:44,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:04:44,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 01:04:44,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:44,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:04:44,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:04:44,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 01:04:44,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:44,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 01:04:44,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:44,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:44,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:44,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:44,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:44,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:44,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:44,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:45,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:45,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:47,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:47,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:47,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:47,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:47,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:48,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:48,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:49,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:49,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 01:04:49,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-28 01:04:49,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 01:04:49,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:49,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:04:49,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 01:04:49,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 01:04:49,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:49,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 01:04:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:49,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:49,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:49,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 01:04:49,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:04:49,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 01:04:49,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:49,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:04:49,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:04:49,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 01:04:49,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:49,941 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-28 01:04:49,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445172265] [2020-10-28 01:04:49,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 01:04:49,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 01:04:49,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474403089] [2020-10-28 01:04:49,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 01:04:49,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:04:49,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 01:04:49,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 01:04:49,946 INFO L87 Difference]: Start difference. First operand 6287 states and 12254 transitions. Second operand 6 states. [2020-10-28 01:04:50,194 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 01:04:52,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:04:52,027 INFO L93 Difference]: Finished difference Result 17882 states and 38741 transitions. [2020-10-28 01:04:52,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 01:04:52,028 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 204 [2020-10-28 01:04:52,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:04:52,315 INFO L225 Difference]: With dead ends: 17882 [2020-10-28 01:04:52,315 INFO L226 Difference]: Without dead ends: 11654 [2020-10-28 01:04:52,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 01:04:52,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11654 states. [2020-10-28 01:04:53,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11654 to 9391. [2020-10-28 01:04:53,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9391 states. [2020-10-28 01:04:53,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9391 states to 9391 states and 18974 transitions. [2020-10-28 01:04:53,847 INFO L78 Accepts]: Start accepts. Automaton has 9391 states and 18974 transitions. Word has length 204 [2020-10-28 01:04:53,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:04:53,848 INFO L481 AbstractCegarLoop]: Abstraction has 9391 states and 18974 transitions. [2020-10-28 01:04:53,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 01:04:53,848 INFO L276 IsEmpty]: Start isEmpty. Operand 9391 states and 18974 transitions. [2020-10-28 01:04:54,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-28 01:04:54,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:04:54,133 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:04:54,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 01:04:54,133 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:04:54,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:04:54,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1015655934, now seen corresponding path program 1 times [2020-10-28 01:04:54,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:04:54,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238007646] [2020-10-28 01:04:54,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:04:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:54,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:54,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:54,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:54,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:54,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:54,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:54,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:54,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:54,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:54,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:54,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:57,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:57,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:57,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:57,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:58,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:58,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:59,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:59,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-28 01:04:59,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-28 01:04:59,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-28 01:04:59,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:59,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 01:04:59,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-28 01:04:59,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 01:04:59,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:59,451 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 01:04:59,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:04:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:59,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:59,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:04:59,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:04:59,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:04:59,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 01:04:59,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:04:59,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:04:59,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:04:59,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:04:59,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:04:59,635 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 01:04:59,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:04:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:04:59,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:59,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:59,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:59,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:59,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:59,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:04:59,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:00,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:02,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:02,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:04,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:05:04,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-28 01:05:04,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-28 01:05:04,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 01:05:04,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:05:04,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:05:04,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-28 01:05:04,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 01:05:04,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:05:04,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 01:05:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:05:04,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:04,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:05:04,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 01:05:04,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:05:04,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 01:05:04,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:05:04,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:05:04,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:05:04,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 01:05:04,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:05:04,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 01:05:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:05:04,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:04,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:04,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:04,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:04,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:04,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:04,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:04,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:06,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:09,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:05:09,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 01:05:09,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 01:05:09,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 01:05:09,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:05:09,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:05:09,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-28 01:05:09,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 01:05:09,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:05:09,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 01:05:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:05:09,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:09,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:05:09,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 01:05:09,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:05:09,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 01:05:09,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:05:09,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:05:09,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:05:09,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 01:05:09,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:05:09,848 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-10-28 01:05:09,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238007646] [2020-10-28 01:05:09,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 01:05:09,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 01:05:09,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782991267] [2020-10-28 01:05:09,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 01:05:09,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:05:09,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 01:05:09,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 01:05:09,850 INFO L87 Difference]: Start difference. First operand 9391 states and 18974 transitions. Second operand 7 states. [2020-10-28 01:05:10,175 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 01:05:10,995 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 01:05:11,281 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-28 01:05:18,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:05:18,290 INFO L93 Difference]: Finished difference Result 55497 states and 182692 transitions. [2020-10-28 01:05:18,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 01:05:18,291 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-10-28 01:05:18,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:05:20,252 INFO L225 Difference]: With dead ends: 55497 [2020-10-28 01:05:20,252 INFO L226 Difference]: Without dead ends: 46165 [2020-10-28 01:05:21,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-28 01:05:21,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46165 states. [2020-10-28 01:05:38,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46165 to 37486. [2020-10-28 01:05:38,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37486 states. [2020-10-28 01:05:41,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37486 states to 37486 states and 129935 transitions. [2020-10-28 01:05:41,733 INFO L78 Accepts]: Start accepts. Automaton has 37486 states and 129935 transitions. Word has length 204 [2020-10-28 01:05:41,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:05:41,736 INFO L481 AbstractCegarLoop]: Abstraction has 37486 states and 129935 transitions. [2020-10-28 01:05:41,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 01:05:41,736 INFO L276 IsEmpty]: Start isEmpty. Operand 37486 states and 129935 transitions. [2020-10-28 01:05:46,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-28 01:05:46,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:05:46,511 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:05:46,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 01:05:46,511 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:05:46,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:05:46,512 INFO L82 PathProgramCache]: Analyzing trace with hash 2008207622, now seen corresponding path program 1 times [2020-10-28 01:05:46,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:05:46,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738530428] [2020-10-28 01:05:46,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:05:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:05:47,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:47,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:47,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:47,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:47,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:47,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:47,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:47,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:47,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:47,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:47,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:52,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:05:52,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-28 01:05:52,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-28 01:05:52,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-28 01:05:52,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:05:52,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 01:05:52,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-28 01:05:52,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 01:05:52,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:05:52,331 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-28 01:05:52,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:05:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:05:52,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:52,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:05:52,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:05:52,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:05:52,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 01:05:52,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:05:52,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:05:52,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:05:52,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:05:52,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:05:52,516 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 01:05:52,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:05:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:05:52,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:52,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:52,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:52,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:52,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:52,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:52,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:56,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:56,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:56,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:56,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:57,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:05:57,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-28 01:05:57,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-28 01:05:57,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 01:05:57,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:05:57,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:05:57,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-28 01:05:57,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 01:05:57,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:05:57,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 01:05:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:05:57,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:57,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:05:57,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 01:05:57,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:05:57,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 01:05:57,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:05:57,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:05:57,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:05:57,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 01:05:57,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:05:57,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 01:05:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:05:57,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:57,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:57,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:57,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:57,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:57,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:58,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:58,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:58,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:58,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:05:58,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:06:02,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:06:02,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 01:06:02,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-28 01:06:02,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 01:06:02,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:06:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:06:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-28 01:06:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 01:06:02,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:06:02,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 01:06:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:06:02,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:06:02,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:06:02,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 01:06:02,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:06:02,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 01:06:02,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:06:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:06:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:06:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 01:06:02,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:06:02,699 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-10-28 01:06:02,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738530428] [2020-10-28 01:06:02,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 01:06:02,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 01:06:02,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701569398] [2020-10-28 01:06:02,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 01:06:02,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:06:02,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 01:06:02,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 01:06:02,701 INFO L87 Difference]: Start difference. First operand 37486 states and 129935 transitions. Second operand 6 states. [2020-10-28 01:06:02,994 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 168