/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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/eca-rers2012/Problem17_label10.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 13:32:18,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 13:32:18,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 13:32:18,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 13:32:18,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 13:32:18,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 13:32:18,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 13:32:18,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 13:32:18,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 13:32:18,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 13:32:18,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 13:32:18,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 13:32:18,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 13:32:18,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 13:32:18,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 13:32:18,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 13:32:18,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 13:32:18,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 13:32:18,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 13:32:18,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 13:32:18,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 13:32:18,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 13:32:18,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 13:32:18,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 13:32:18,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 13:32:18,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 13:32:18,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 13:32:18,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 13:32:18,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 13:32:18,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 13:32:18,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 13:32:18,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 13:32:18,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 13:32:18,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 13:32:18,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 13:32:18,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 13:32:18,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 13:32:18,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 13:32:18,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 13:32:18,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 13:32:18,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 13:32:18,387 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 13:32:18,448 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 13:32:18,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 13:32:18,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 13:32:18,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 13:32:18,454 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 13:32:18,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 13:32:18,455 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 13:32:18,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 13:32:18,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 13:32:18,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 13:32:18,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 13:32:18,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 13:32:18,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 13:32:18,456 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 13:32:18,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 13:32:18,456 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 13:32:18,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 13:32:18,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 13:32:18,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 13:32:18,459 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 13:32:18,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 13:32:18,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 13:32:18,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 13:32:18,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 13:32:18,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 13:32:18,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 13:32:18,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 13:32:18,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 13:32:18,461 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 13:32:18,461 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 13:32:18,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 13:32:18,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 13:32:18,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 13:32:18,970 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 13:32:18,971 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 13:32:18,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label10.c [2020-10-28 13:32:19,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b9cbee08/f31eec00197e47d7a7d447005faed6fa/FLAGb63e3638d [2020-10-28 13:32:20,083 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 13:32:20,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem17_label10.c [2020-10-28 13:32:20,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b9cbee08/f31eec00197e47d7a7d447005faed6fa/FLAGb63e3638d [2020-10-28 13:32:20,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b9cbee08/f31eec00197e47d7a7d447005faed6fa [2020-10-28 13:32:20,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 13:32:20,583 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 13:32:20,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 13:32:20,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 13:32:20,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 13:32:20,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 01:32:20" (1/1) ... [2020-10-28 13:32:20,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@308e85ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:32:20, skipping insertion in model container [2020-10-28 13:32:20,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 01:32:20" (1/1) ... [2020-10-28 13:32:20,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 13:32:20,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 13:32:21,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 13:32:21,887 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 13:32:22,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 13:32:22,385 INFO L208 MainTranslator]: Completed translation [2020-10-28 13:32:22,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:32:22 WrapperNode [2020-10-28 13:32:22,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 13:32:22,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 13:32:22,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 13:32:22,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 13:32:22,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:32:22" (1/1) ... [2020-10-28 13:32:22,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:32:22" (1/1) ... [2020-10-28 13:32:22,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:32:22" (1/1) ... [2020-10-28 13:32:22,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:32:22" (1/1) ... [2020-10-28 13:32:22,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:32:22" (1/1) ... [2020-10-28 13:32:22,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:32:22" (1/1) ... [2020-10-28 13:32:22,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:32:22" (1/1) ... [2020-10-28 13:32:22,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 13:32:22,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 13:32:22,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 13:32:22,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 13:32:22,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:32:22" (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 13:32:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 13:32:22,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 13:32:22,794 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 13:32:22,794 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 13:32:22,794 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-28 13:32:22,795 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 13:32:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 13:32:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-28 13:32:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 13:32:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 13:32:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 13:32:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 13:32:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 13:32:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 13:32:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 13:32:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 13:32:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 13:32:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 13:32:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 13:32:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 13:32:22,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 13:32:31,822 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 13:32:31,822 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 13:32:31,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 01:32:31 BoogieIcfgContainer [2020-10-28 13:32:31,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 13:32:31,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 13:32:31,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 13:32:31,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 13:32:31,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 01:32:20" (1/3) ... [2020-10-28 13:32:31,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c55e7e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 01:32:31, skipping insertion in model container [2020-10-28 13:32:31,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:32:22" (2/3) ... [2020-10-28 13:32:31,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c55e7e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 01:32:31, skipping insertion in model container [2020-10-28 13:32:31,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 01:32:31" (3/3) ... [2020-10-28 13:32:31,835 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem17_label10.c [2020-10-28 13:32:31,848 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 13:32:31,854 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 13:32:31,868 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 13:32:31,902 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 13:32:31,903 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 13:32:31,903 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 13:32:31,903 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 13:32:31,903 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 13:32:31,903 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 13:32:31,903 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 13:32:31,903 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 13:32:31,936 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states. [2020-10-28 13:32:31,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-28 13:32:31,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:32:31,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:32:31,946 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:32:31,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:32:31,982 INFO L82 PathProgramCache]: Analyzing trace with hash -242180614, now seen corresponding path program 1 times [2020-10-28 13:32:31,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:32:31,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590826557] [2020-10-28 13:32:31,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:32:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:32,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:33,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:33,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-28 13:32:33,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:33,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 707 [2020-10-28 13:32:33,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:33,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:33,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:32:33,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:32:33,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 13:32:33,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 13:32:33,278 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 13:32:33,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:32:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:33,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:33,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:33,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:32:33,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:33,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 13:32:33,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:33,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:33,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:32:33,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:32:33,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:32:33,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:32:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:32:33,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [590826557] [2020-10-28 13:32:33,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:32:33,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 13:32:33,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165200512] [2020-10-28 13:32:33,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 13:32:33,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:32:33,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 13:32:33,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 13:32:33,440 INFO L87 Difference]: Start difference. First operand 607 states. Second operand 4 states. [2020-10-28 13:32:45,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:32:45,606 INFO L93 Difference]: Finished difference Result 1694 states and 3092 transitions. [2020-10-28 13:32:45,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 13:32:45,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-10-28 13:32:45,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:32:45,633 INFO L225 Difference]: With dead ends: 1694 [2020-10-28 13:32:45,634 INFO L226 Difference]: Without dead ends: 1010 [2020-10-28 13:32:45,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 13:32:45,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2020-10-28 13:32:45,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 992. [2020-10-28 13:32:45,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 992 states. [2020-10-28 13:32:45,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1527 transitions. [2020-10-28 13:32:45,785 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1527 transitions. Word has length 46 [2020-10-28 13:32:45,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:32:45,786 INFO L481 AbstractCegarLoop]: Abstraction has 992 states and 1527 transitions. [2020-10-28 13:32:45,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 13:32:45,786 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1527 transitions. [2020-10-28 13:32:45,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-28 13:32:45,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:32:45,819 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:32:45,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 13:32:45,820 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:32:45,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:32:45,821 INFO L82 PathProgramCache]: Analyzing trace with hash -749184518, now seen corresponding path program 1 times [2020-10-28 13:32:45,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:32:45,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324569862] [2020-10-28 13:32:45,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:32:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:45,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:46,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:47,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:47,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:47,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 13:32:47,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:32:47,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1609 [2020-10-28 13:32:47,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:47,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:47,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:32:47,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:32:47,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 13:32:47,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:32:47,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:32:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:47,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:47,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:47,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:32:47,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:47,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 13:32:47,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:47,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:47,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:32:47,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:32:47,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:32:47,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:47,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:32:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:32:47,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:32:47,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:32:47,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-28 13:32:47,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:32:47,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-28 13:32:47,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:32:47,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:32:47,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:32:47,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:32:47,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 13:32:47,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:32:48,014 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:32:48,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324569862] [2020-10-28 13:32:48,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:32:48,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 13:32:48,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343772475] [2020-10-28 13:32:48,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:32:48,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:32:48,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:32:48,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:32:48,025 INFO L87 Difference]: Start difference. First operand 992 states and 1527 transitions. Second operand 7 states. [2020-10-28 13:33:09,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:33:09,276 INFO L93 Difference]: Finished difference Result 2469 states and 3921 transitions. [2020-10-28 13:33:09,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 13:33:09,283 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-10-28 13:33:09,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:33:09,293 INFO L225 Difference]: With dead ends: 2469 [2020-10-28 13:33:09,294 INFO L226 Difference]: Without dead ends: 1483 [2020-10-28 13:33:09,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:33:09,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2020-10-28 13:33:09,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1450. [2020-10-28 13:33:09,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2020-10-28 13:33:09,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1972 transitions. [2020-10-28 13:33:09,367 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1972 transitions. Word has length 117 [2020-10-28 13:33:09,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:33:09,370 INFO L481 AbstractCegarLoop]: Abstraction has 1450 states and 1972 transitions. [2020-10-28 13:33:09,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:33:09,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1972 transitions. [2020-10-28 13:33:09,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 13:33:09,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:33:09,383 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:33:09,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 13:33:09,384 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:33:09,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:33:09,385 INFO L82 PathProgramCache]: Analyzing trace with hash 669638343, now seen corresponding path program 1 times [2020-10-28 13:33:09,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:33:09,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [410305554] [2020-10-28 13:33:09,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:33:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:33:09,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:33:09,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:33:10,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:33:10,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 13:33:10,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:33:10,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1181 [2020-10-28 13:33:10,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:33:10,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:33:10,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:33:10,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 13:33:10,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 13:33:10,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 13:33:10,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:33:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:33:10,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:33:10,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:33:10,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:33:10,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:33:10,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 13:33:10,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:33:10,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:33:10,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:33:10,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:33:10,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:33:10,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:33:10,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:33:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:33:10,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:33:10,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:33:10,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 13:33:10,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:33:10,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 13:33:10,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:33:10,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:33:10,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:33:10,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:33:10,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 13:33:10,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:33:11,013 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:33:11,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [410305554] [2020-10-28 13:33:11,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:33:11,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 13:33:11,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222834031] [2020-10-28 13:33:11,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 13:33:11,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:33:11,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 13:33:11,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 13:33:11,020 INFO L87 Difference]: Start difference. First operand 1450 states and 1972 transitions. Second operand 5 states. [2020-10-28 13:33:27,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:33:27,006 INFO L93 Difference]: Finished difference Result 3374 states and 4875 transitions. [2020-10-28 13:33:27,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 13:33:27,007 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-10-28 13:33:27,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:33:27,024 INFO L225 Difference]: With dead ends: 3374 [2020-10-28 13:33:27,025 INFO L226 Difference]: Without dead ends: 2363 [2020-10-28 13:33:27,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 13:33:27,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2020-10-28 13:33:27,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 2353. [2020-10-28 13:33:27,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2353 states. [2020-10-28 13:33:27,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2353 states to 2353 states and 3070 transitions. [2020-10-28 13:33:27,117 INFO L78 Accepts]: Start accepts. Automaton has 2353 states and 3070 transitions. Word has length 120 [2020-10-28 13:33:27,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:33:27,120 INFO L481 AbstractCegarLoop]: Abstraction has 2353 states and 3070 transitions. [2020-10-28 13:33:27,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 13:33:27,125 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states and 3070 transitions. [2020-10-28 13:33:27,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-28 13:33:27,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:33:27,135 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:33:27,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 13:33:27,135 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:33:27,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:33:27,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1893331865, now seen corresponding path program 1 times [2020-10-28 13:33:27,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:33:27,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444335897] [2020-10-28 13:33:27,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:33:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:33:27,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:33:27,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:33:29,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:33:29,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-28 13:33:29,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:33:29,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2280 [2020-10-28 13:33:29,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:33:29,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:33:29,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:33:29,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:33:29,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 13:33:29,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:33:29,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:33:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:33:29,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:33:29,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:33:29,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:33:29,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:33:29,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 13:33:29,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:33:29,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:33:29,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:33:29,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:33:29,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:33:29,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:33:29,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:33:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:33:29,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:33:30,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:33:30,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 13:33:30,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:33:30,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-28 13:33:30,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:33:30,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:33:30,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:33:30,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:33:30,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 13:33:30,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:33:30,166 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:33:30,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444335897] [2020-10-28 13:33:30,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:33:30,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 13:33:30,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909380047] [2020-10-28 13:33:30,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:33:30,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:33:30,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:33:30,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:33:30,169 INFO L87 Difference]: Start difference. First operand 2353 states and 3070 transitions. Second operand 7 states. [2020-10-28 13:33:49,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:33:49,060 INFO L93 Difference]: Finished difference Result 6114 states and 8262 transitions. [2020-10-28 13:33:49,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:33:49,061 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 155 [2020-10-28 13:33:49,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:33:49,083 INFO L225 Difference]: With dead ends: 6114 [2020-10-28 13:33:49,083 INFO L226 Difference]: Without dead ends: 3306 [2020-10-28 13:33:49,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:33:49,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3306 states. [2020-10-28 13:33:49,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3306 to 2826. [2020-10-28 13:33:49,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2826 states. [2020-10-28 13:33:49,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 3385 transitions. [2020-10-28 13:33:49,196 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 3385 transitions. Word has length 155 [2020-10-28 13:33:49,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:33:49,198 INFO L481 AbstractCegarLoop]: Abstraction has 2826 states and 3385 transitions. [2020-10-28 13:33:49,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:33:49,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 3385 transitions. [2020-10-28 13:33:49,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-28 13:33:49,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:33:49,203 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:33:49,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 13:33:49,203 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:33:49,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:33:49,204 INFO L82 PathProgramCache]: Analyzing trace with hash -173214666, now seen corresponding path program 1 times [2020-10-28 13:33:49,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:33:49,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018830444] [2020-10-28 13:33:49,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:33:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:33:49,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:33:49,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:33:50,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:33:50,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-28 13:33:50,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:33:50,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1325 [2020-10-28 13:33:50,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:33:50,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:33:50,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:33:50,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-28 13:33:50,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 13:33:50,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:33:50,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:33:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:33:50,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:33:50,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:33:50,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:33:50,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:33:50,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 13:33:50,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:33:50,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:33:50,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:33:50,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:33:50,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:33:50,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:33:50,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:33:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:33:50,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:33:50,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:33:50,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 13:33:50,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:33:50,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-28 13:33:50,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:33:50,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:33:50,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:33:50,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:33:50,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-28 13:33:50,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:33:50,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 13:33:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:33:51,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:33:51,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:33:51,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 13:33:51,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:33:51,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-28 13:33:51,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:33:51,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:33:51,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:33:51,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:33:51,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 13:33:51,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:33:51,251 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 13:33:51,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018830444] [2020-10-28 13:33:51,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:33:51,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:33:51,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233399846] [2020-10-28 13:33:51,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:33:51,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:33:51,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:33:51,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:33:51,254 INFO L87 Difference]: Start difference. First operand 2826 states and 3385 transitions. Second operand 7 states. [2020-10-28 13:34:06,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:34:06,361 INFO L93 Difference]: Finished difference Result 7491 states and 9272 transitions. [2020-10-28 13:34:06,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:34:06,363 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2020-10-28 13:34:06,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:34:06,387 INFO L225 Difference]: With dead ends: 7491 [2020-10-28 13:34:06,388 INFO L226 Difference]: Without dead ends: 4671 [2020-10-28 13:34:06,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:34:06,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4671 states. [2020-10-28 13:34:06,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4671 to 4656. [2020-10-28 13:34:06,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4656 states. [2020-10-28 13:34:06,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 5579 transitions. [2020-10-28 13:34:06,523 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 5579 transitions. Word has length 206 [2020-10-28 13:34:06,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:34:06,524 INFO L481 AbstractCegarLoop]: Abstraction has 4656 states and 5579 transitions. [2020-10-28 13:34:06,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:34:06,524 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 5579 transitions. [2020-10-28 13:34:06,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-28 13:34:06,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:34:06,528 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:34:06,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 13:34:06,528 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:34:06,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:34:06,529 INFO L82 PathProgramCache]: Analyzing trace with hash 236951506, now seen corresponding path program 1 times [2020-10-28 13:34:06,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:34:06,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217554256] [2020-10-28 13:34:06,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:34:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:34:06,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:06,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:07,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:11,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:34:11,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-28 13:34:11,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:34:11,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4446 [2020-10-28 13:34:11,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:34:11,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:34:11,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:34:11,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-10-28 13:34:11,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 13:34:11,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 13:34:11,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:34:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:34:11,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:11,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:34:11,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:34:11,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:34:11,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 13:34:11,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:34:11,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:34:11,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:34:11,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:34:11,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:34:11,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:34:11,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:34:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:34:11,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:11,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:34:11,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 13:34:11,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:34:11,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 13:34:11,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:34:11,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:34:11,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:34:11,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:34:11,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:34:11,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:34:11,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 13:34:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:34:11,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:11,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:34:11,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-28 13:34:11,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:34:11,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-28 13:34:11,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:34:11,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:34:11,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:34:11,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:34:11,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 13:34:11,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:34:11,520 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-28 13:34:11,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217554256] [2020-10-28 13:34:11,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:34:11,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 13:34:11,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837064700] [2020-10-28 13:34:11,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 13:34:11,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:34:11,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 13:34:11,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 13:34:11,531 INFO L87 Difference]: Start difference. First operand 4656 states and 5579 transitions. Second operand 5 states. [2020-10-28 13:34:26,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:34:26,837 INFO L93 Difference]: Finished difference Result 11936 states and 14631 transitions. [2020-10-28 13:34:26,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 13:34:26,844 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2020-10-28 13:34:26,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:34:26,883 INFO L225 Difference]: With dead ends: 11936 [2020-10-28 13:34:26,883 INFO L226 Difference]: Without dead ends: 7285 [2020-10-28 13:34:26,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 13:34:26,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7285 states. [2020-10-28 13:34:27,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7285 to 6397. [2020-10-28 13:34:27,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6397 states. [2020-10-28 13:34:27,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6397 states to 6397 states and 7589 transitions. [2020-10-28 13:34:27,144 INFO L78 Accepts]: Start accepts. Automaton has 6397 states and 7589 transitions. Word has length 208 [2020-10-28 13:34:27,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:34:27,145 INFO L481 AbstractCegarLoop]: Abstraction has 6397 states and 7589 transitions. [2020-10-28 13:34:27,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 13:34:27,145 INFO L276 IsEmpty]: Start isEmpty. Operand 6397 states and 7589 transitions. [2020-10-28 13:34:27,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-28 13:34:27,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:34:27,149 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:34:27,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 13:34:27,150 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:34:27,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:34:27,150 INFO L82 PathProgramCache]: Analyzing trace with hash -889826936, now seen corresponding path program 1 times [2020-10-28 13:34:27,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:34:27,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641165918] [2020-10-28 13:34:27,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:34:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:34:27,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:27,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:27,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:32,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:34:32,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-28 13:34:32,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:34:32,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-28 13:34:32,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:34:32,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:34:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:34:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-28 13:34:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-28 13:34:32,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:34:32,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:34:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:34:32,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:32,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:34:32,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:34:32,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:34:32,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 13:34:32,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:34:32,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:34:32,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:34:32,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:34:32,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:34:32,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:34:32,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:34:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:34:32,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:32,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:34:32,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 13:34:32,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:34:32,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-28 13:34:32,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:34:32,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:34:32,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:34:32,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:34:32,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-28 13:34:32,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:34:32,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 13:34:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:34:32,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:32,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:32,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:34:32,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 13:34:32,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:34:32,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-28 13:34:32,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:34:32,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:34:32,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:34:32,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:34:32,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 13:34:32,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:34:33,024 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-28 13:34:33,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1641165918] [2020-10-28 13:34:33,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:34:33,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 13:34:33,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983893021] [2020-10-28 13:34:33,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 13:34:33,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:34:33,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 13:34:33,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 13:34:33,027 INFO L87 Difference]: Start difference. First operand 6397 states and 7589 transitions. Second operand 5 states. [2020-10-28 13:34:47,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:34:47,073 INFO L93 Difference]: Finished difference Result 12806 states and 15209 transitions. [2020-10-28 13:34:47,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 13:34:47,076 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 219 [2020-10-28 13:34:47,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:34:47,107 INFO L225 Difference]: With dead ends: 12806 [2020-10-28 13:34:47,108 INFO L226 Difference]: Without dead ends: 6415 [2020-10-28 13:34:47,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 13:34:47,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6415 states. [2020-10-28 13:34:47,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6415 to 6397. [2020-10-28 13:34:47,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6397 states. [2020-10-28 13:34:47,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6397 states to 6397 states and 7564 transitions. [2020-10-28 13:34:47,341 INFO L78 Accepts]: Start accepts. Automaton has 6397 states and 7564 transitions. Word has length 219 [2020-10-28 13:34:47,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:34:47,342 INFO L481 AbstractCegarLoop]: Abstraction has 6397 states and 7564 transitions. [2020-10-28 13:34:47,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 13:34:47,342 INFO L276 IsEmpty]: Start isEmpty. Operand 6397 states and 7564 transitions. [2020-10-28 13:34:47,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-10-28 13:34:47,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:34:47,349 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:34:47,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 13:34:47,349 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:34:47,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:34:47,350 INFO L82 PathProgramCache]: Analyzing trace with hash -197934759, now seen corresponding path program 1 times [2020-10-28 13:34:47,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:34:47,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848038147] [2020-10-28 13:34:47,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:34:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:34:47,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:47,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:50,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:51,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:34:51,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-28 13:34:51,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:34:51,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4215 [2020-10-28 13:34:51,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:34:51,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:34:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:34:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 240 [2020-10-28 13:34:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 13:34:51,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:34:51,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:34:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:34:51,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:51,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:34:51,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:34:51,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:34:51,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 13:34:51,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:34:51,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:34:51,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:34:51,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:34:51,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:34:51,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:34:51,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:34:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:34:51,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:51,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:34:51,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 13:34:51,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:34:51,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 13:34:51,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:34:51,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:34:51,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:34:51,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:34:51,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:34:51,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:34:51,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 13:34:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:34:52,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:34:52,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:34:52,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-28 13:34:52,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:34:52,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-28 13:34:52,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:34:52,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:34:52,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:34:52,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:34:52,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-28 13:34:52,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:34:52,428 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-28 13:34:52,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848038147] [2020-10-28 13:34:52,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:34:52,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 13:34:52,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223651994] [2020-10-28 13:34:52,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 13:34:52,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:34:52,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 13:34:52,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 13:34:52,431 INFO L87 Difference]: Start difference. First operand 6397 states and 7564 transitions. Second operand 5 states. [2020-10-28 13:34:52,603 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-28 13:35:10,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:35:10,984 INFO L93 Difference]: Finished difference Result 15495 states and 18798 transitions. [2020-10-28 13:35:10,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 13:35:10,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 274 [2020-10-28 13:35:10,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:35:11,017 INFO L225 Difference]: With dead ends: 15495 [2020-10-28 13:35:11,017 INFO L226 Difference]: Without dead ends: 9104 [2020-10-28 13:35:11,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 13:35:11,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9104 states. [2020-10-28 13:35:11,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9104 to 8214. [2020-10-28 13:35:11,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8214 states. [2020-10-28 13:35:11,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8214 states to 8214 states and 10073 transitions. [2020-10-28 13:35:11,256 INFO L78 Accepts]: Start accepts. Automaton has 8214 states and 10073 transitions. Word has length 274 [2020-10-28 13:35:11,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:35:11,257 INFO L481 AbstractCegarLoop]: Abstraction has 8214 states and 10073 transitions. [2020-10-28 13:35:11,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 13:35:11,258 INFO L276 IsEmpty]: Start isEmpty. Operand 8214 states and 10073 transitions. [2020-10-28 13:35:11,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-10-28 13:35:11,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:35:11,266 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 13:35:11,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 13:35:11,267 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:35:11,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:35:11,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1204053332, now seen corresponding path program 1 times [2020-10-28 13:35:11,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:35:11,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331143612] [2020-10-28 13:35:11,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:35:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:35:11,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:35:11,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:35:13,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:35:13,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-28 13:35:13,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:35:13,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1937 [2020-10-28 13:35:13,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:35:13,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:35:13,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:35:13,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-28 13:35:13,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 13:35:13,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:35:13,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:35:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:35:13,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:35:13,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:35:13,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:35:13,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:35:13,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 13:35:13,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:35:13,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:35:13,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:35:13,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:35:13,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:35:13,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:35:13,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:35:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:35:13,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:35:13,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:35:13,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 13:35:13,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:35:13,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 13:35:13,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:35:13,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:35:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:35:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:35:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:35:13,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:35:13,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 13:35:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:35:13,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:35:13,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:35:13,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 13:35:13,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:35:13,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 13:35:13,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:35:13,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:35:13,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:35:13,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:35:13,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 13:35:13,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:35:13,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-28 13:35:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:35:13,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:35:13,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:35:13,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-28 13:35:13,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:35:13,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-28 13:35:13,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:35:13,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:35:13,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:35:13,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:35:13,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 13:35:13,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:35:14,018 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 255 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-28 13:35:14,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331143612] [2020-10-28 13:35:14,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:35:14,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:35:14,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484695920] [2020-10-28 13:35:14,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:35:14,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:35:14,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:35:14,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:35:14,028 INFO L87 Difference]: Start difference. First operand 8214 states and 10073 transitions. Second operand 7 states. [2020-10-28 13:35:36,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:35:36,571 INFO L93 Difference]: Finished difference Result 20742 states and 26310 transitions. [2020-10-28 13:35:36,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 13:35:36,575 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 290 [2020-10-28 13:35:36,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:35:36,617 INFO L225 Difference]: With dead ends: 20742 [2020-10-28 13:35:36,618 INFO L226 Difference]: Without dead ends: 12022 [2020-10-28 13:35:36,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:35:36,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12022 states. [2020-10-28 13:35:36,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12022 to 10622. [2020-10-28 13:35:36,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10622 states. [2020-10-28 13:35:36,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10622 states to 10622 states and 13264 transitions. [2020-10-28 13:35:37,001 INFO L78 Accepts]: Start accepts. Automaton has 10622 states and 13264 transitions. Word has length 290 [2020-10-28 13:35:37,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:35:37,003 INFO L481 AbstractCegarLoop]: Abstraction has 10622 states and 13264 transitions. [2020-10-28 13:35:37,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:35:37,003 INFO L276 IsEmpty]: Start isEmpty. Operand 10622 states and 13264 transitions. [2020-10-28 13:35:37,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-28 13:35:37,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:35:37,012 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:35:37,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 13:35:37,013 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:35:37,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:35:37,013 INFO L82 PathProgramCache]: Analyzing trace with hash 837038129, now seen corresponding path program 1 times [2020-10-28 13:35:37,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:35:37,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640616481] [2020-10-28 13:35:37,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:35:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:35:37,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:35:37,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:35:38,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:35:41,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:35:41,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-10-28 13:35:41,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:35:41,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3947 [2020-10-28 13:35:41,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:35:41,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:35:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:35:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-28 13:35:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 13:35:41,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:35:41,218 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 13:35:41,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:35:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:35:41,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:35:41,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:35:41,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:35:41,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:35:41,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 13:35:41,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:35:41,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:35:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:35:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:35:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:35:41,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:35:41,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:35:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:35:41,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:35:41,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:35:41,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 13:35:41,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:35:41,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 13:35:41,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:35:41,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:35:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:35:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:35:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:35:41,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:35:41,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 13:35:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:35:41,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:35:41,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:35:41,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 13:35:41,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:35:41,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-28 13:35:41,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:35:41,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:35:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:35:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:35:41,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 13:35:41,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:35:41,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-28 13:35:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:35:41,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:35:41,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:35:41,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 13:35:41,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:35:41,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-28 13:35:41,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:35:41,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:35:41,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:35:41,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:35:41,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 13:35:41,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:35:41,750 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 265 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-28 13:35:41,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1640616481] [2020-10-28 13:35:41,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:35:41,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:35:41,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525671509] [2020-10-28 13:35:41,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:35:41,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:35:41,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:35:41,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:35:41,753 INFO L87 Difference]: Start difference. First operand 10622 states and 13264 transitions. Second operand 7 states. [2020-10-28 13:35:59,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:35:59,794 INFO L93 Difference]: Finished difference Result 24883 states and 31842 transitions. [2020-10-28 13:35:59,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 13:35:59,799 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 295 [2020-10-28 13:35:59,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:35:59,852 INFO L225 Difference]: With dead ends: 24883 [2020-10-28 13:35:59,852 INFO L226 Difference]: Without dead ends: 14267 [2020-10-28 13:35:59,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:35:59,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14267 states. [2020-10-28 13:36:00,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14267 to 13318. [2020-10-28 13:36:00,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13318 states. [2020-10-28 13:36:00,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13318 states to 13318 states and 16514 transitions. [2020-10-28 13:36:00,232 INFO L78 Accepts]: Start accepts. Automaton has 13318 states and 16514 transitions. Word has length 295 [2020-10-28 13:36:00,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:36:00,233 INFO L481 AbstractCegarLoop]: Abstraction has 13318 states and 16514 transitions. [2020-10-28 13:36:00,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:36:00,233 INFO L276 IsEmpty]: Start isEmpty. Operand 13318 states and 16514 transitions. [2020-10-28 13:36:00,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-28 13:36:00,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:36:00,244 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:36:00,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 13:36:00,244 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:36:00,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:36:00,245 INFO L82 PathProgramCache]: Analyzing trace with hash -949873872, now seen corresponding path program 1 times [2020-10-28 13:36:00,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:36:00,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1868212797] [2020-10-28 13:36:00,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:36:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:36:00,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:36:00,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:36:00,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:36:05,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:36:05,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-10-28 13:36:05,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:36:05,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 13:36:05,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:36:05,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:36:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:36:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-28 13:36:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 13:36:05,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:36:05,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:36:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:36:05,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:36:05,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:36:05,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:36:05,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:36:05,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:36:05,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:36:05,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:36:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:36:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:36:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:36:05,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:36:05,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:36:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:36:05,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:36:05,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:36:05,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 13:36:05,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:36:05,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-28 13:36:05,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:36:05,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:36:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:36:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:36:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-28 13:36:05,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:36:05,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 13:36:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:36:05,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:36:05,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:36:05,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 13:36:05,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:36:05,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-28 13:36:05,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:36:05,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:36:05,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:36:05,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:36:05,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 13:36:05,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0