/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:32:04,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:32:04,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:32:04,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:32:04,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:32:04,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:32:04,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:32:04,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:32:04,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:32:04,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:32:04,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:32:04,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:32:04,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:32:04,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:32:04,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:32:04,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:32:04,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:32:04,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:32:04,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:32:04,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:32:04,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:32:04,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:32:04,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:32:04,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:32:04,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:32:04,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:32:04,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:32:04,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:32:04,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:32:04,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:32:04,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:32:04,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:32:04,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:32:04,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:32:04,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:32:04,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:32:04,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:32:04,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:32:04,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:32:04,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:32:04,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:32:04,520 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 12:32:04,546 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:32:04,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:32:04,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:32:04,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:32:04,548 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:32:04,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:32:04,549 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:32:04,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:32:04,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:32:04,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:32:04,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:32:04,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:32:04,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:32:04,551 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:32:04,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:32:04,551 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:32:04,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:32:04,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:32:04,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:32:04,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:32:04,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:32:04,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:32:04,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:32:04,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:32:04,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:32:04,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:32:04,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:32:04,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:32:04,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:32:04,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:32:05,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:32:05,034 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:32:05,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:32:05,043 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:32:05,044 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:32:05,045 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-09-25 12:32:05,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25c700d55/f08596fd196b41b7846ddad79c7cb094/FLAGfb37b15bf [2020-09-25 12:32:05,744 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:32:05,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-09-25 12:32:05,766 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25c700d55/f08596fd196b41b7846ddad79c7cb094/FLAGfb37b15bf [2020-09-25 12:32:06,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25c700d55/f08596fd196b41b7846ddad79c7cb094 [2020-09-25 12:32:06,038 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:32:06,047 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:32:06,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:32:06,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:32:06,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:32:06,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:32:06" (1/1) ... [2020-09-25 12:32:06,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b110e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:06, skipping insertion in model container [2020-09-25 12:32:06,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:32:06" (1/1) ... [2020-09-25 12:32:06,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:32:06,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:32:06,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:32:06,520 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:32:06,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:32:06,696 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:32:06,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:06 WrapperNode [2020-09-25 12:32:06,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:32:06,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:32:06,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:32:06,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:32:06,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:06" (1/1) ... [2020-09-25 12:32:06,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:06" (1/1) ... [2020-09-25 12:32:06,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:06" (1/1) ... [2020-09-25 12:32:06,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:06" (1/1) ... [2020-09-25 12:32:06,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:06" (1/1) ... [2020-09-25 12:32:06,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:06" (1/1) ... [2020-09-25 12:32:06,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:06" (1/1) ... [2020-09-25 12:32:06,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:32:06,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:32:06,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:32:06,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:32:06,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:32:06,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:32:06,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:32:06,840 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 12:32:06,840 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:32:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:32:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 12:32:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 12:32:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 12:32:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:32:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:32:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:32:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:32:07,838 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:32:07,839 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 12:32:07,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:32:07 BoogieIcfgContainer [2020-09-25 12:32:07,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:32:07,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:32:07,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:32:07,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:32:07,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:32:06" (1/3) ... [2020-09-25 12:32:07,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2564b957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:32:07, skipping insertion in model container [2020-09-25 12:32:07,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:06" (2/3) ... [2020-09-25 12:32:07,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2564b957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:32:07, skipping insertion in model container [2020-09-25 12:32:07,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:32:07" (3/3) ... [2020-09-25 12:32:07,861 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2020-09-25 12:32:07,874 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:32:07,886 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-09-25 12:32:07,909 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-09-25 12:32:07,947 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:32:07,960 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:32:07,960 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:32:07,960 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:32:07,961 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:32:07,961 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:32:07,961 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:32:07,961 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:32:07,999 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states. [2020-09-25 12:32:08,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 12:32:08,007 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:08,008 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] [2020-09-25 12:32:08,009 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:08,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:08,016 INFO L82 PathProgramCache]: Analyzing trace with hash 519309997, now seen corresponding path program 1 times [2020-09-25 12:32:08,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:08,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516748738] [2020-09-25 12:32:08,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:08,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:08,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:08,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:08,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:32:08,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:32:08,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-09-25 12:32:08,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:08,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:08,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:32:08,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 12:32:08,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:32:08,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 12:32:08,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:08,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:08,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:08,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:32:08,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:08,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:32:08,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:08,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:08,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:08,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:08,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:08,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:08,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516748738] [2020-09-25 12:32:08,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:08,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:32:08,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205858219] [2020-09-25 12:32:08,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:32:08,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:08,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:32:08,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:32:08,829 INFO L87 Difference]: Start difference. First operand 519 states. Second operand 6 states. [2020-09-25 12:32:10,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:10,551 INFO L93 Difference]: Finished difference Result 546 states and 624 transitions. [2020-09-25 12:32:10,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:32:10,553 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-09-25 12:32:10,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:10,575 INFO L225 Difference]: With dead ends: 546 [2020-09-25 12:32:10,575 INFO L226 Difference]: Without dead ends: 471 [2020-09-25 12:32:10,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:32:10,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-25 12:32:10,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 459. [2020-09-25 12:32:10,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-09-25 12:32:10,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 480 transitions. [2020-09-25 12:32:10,659 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 480 transitions. Word has length 25 [2020-09-25 12:32:10,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:10,660 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 480 transitions. [2020-09-25 12:32:10,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:32:10,661 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 480 transitions. [2020-09-25 12:32:10,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 12:32:10,662 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:10,662 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] [2020-09-25 12:32:10,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:32:10,663 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:10,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:10,664 INFO L82 PathProgramCache]: Analyzing trace with hash 775203426, now seen corresponding path program 1 times [2020-09-25 12:32:10,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:10,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941653568] [2020-09-25 12:32:10,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:10,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:10,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:11,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:11,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 12:32:11,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:32:11,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 345 [2020-09-25 12:32:11,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:11,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:11,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:32:11,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 12:32:11,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:32:11,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:11,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:11,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:11,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:11,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:32:11,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:11,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:32:11,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:11,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:11,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:11,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:11,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:11,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:11,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:11,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941653568] [2020-09-25 12:32:11,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:11,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:32:11,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883873341] [2020-09-25 12:32:11,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:32:11,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:11,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:32:11,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:32:11,086 INFO L87 Difference]: Start difference. First operand 459 states and 480 transitions. Second operand 6 states. [2020-09-25 12:32:12,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:12,409 INFO L93 Difference]: Finished difference Result 469 states and 490 transitions. [2020-09-25 12:32:12,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:32:12,410 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-25 12:32:12,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:12,414 INFO L225 Difference]: With dead ends: 469 [2020-09-25 12:32:12,415 INFO L226 Difference]: Without dead ends: 447 [2020-09-25 12:32:12,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:32:12,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-25 12:32:12,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2020-09-25 12:32:12,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2020-09-25 12:32:12,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 459 transitions. [2020-09-25 12:32:12,450 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 459 transitions. Word has length 30 [2020-09-25 12:32:12,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:12,450 INFO L479 AbstractCegarLoop]: Abstraction has 447 states and 459 transitions. [2020-09-25 12:32:12,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:32:12,450 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 459 transitions. [2020-09-25 12:32:12,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-25 12:32:12,452 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:12,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:12,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:32:12,453 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:12,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:12,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1526563962, now seen corresponding path program 1 times [2020-09-25 12:32:12,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:12,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44695446] [2020-09-25 12:32:12,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:12,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:12,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:12,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:12,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:12,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:14,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:14,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 12:32:14,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:32:14,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1895 [2020-09-25 12:32:14,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:14,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:14,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:32:14,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 12:32:14,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 12:32:14,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:14,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:14,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:14,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:14,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:32:14,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:14,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:32:14,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:14,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:14,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:14,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:14,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:14,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:14,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:14,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [44695446] [2020-09-25 12:32:14,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:14,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:32:14,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038376056] [2020-09-25 12:32:14,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:32:14,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:14,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:32:14,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:32:14,438 INFO L87 Difference]: Start difference. First operand 447 states and 459 transitions. Second operand 7 states. [2020-09-25 12:32:15,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:15,500 INFO L93 Difference]: Finished difference Result 447 states and 459 transitions. [2020-09-25 12:32:15,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 12:32:15,501 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2020-09-25 12:32:15,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:15,503 INFO L225 Difference]: With dead ends: 447 [2020-09-25 12:32:15,503 INFO L226 Difference]: Without dead ends: 445 [2020-09-25 12:32:15,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:32:15,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-09-25 12:32:15,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2020-09-25 12:32:15,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2020-09-25 12:32:15,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 457 transitions. [2020-09-25 12:32:15,517 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 457 transitions. Word has length 47 [2020-09-25 12:32:15,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:15,518 INFO L479 AbstractCegarLoop]: Abstraction has 445 states and 457 transitions. [2020-09-25 12:32:15,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:32:15,518 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 457 transitions. [2020-09-25 12:32:15,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 12:32:15,520 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:15,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:15,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:32:15,521 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:15,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:15,521 INFO L82 PathProgramCache]: Analyzing trace with hash -344421966, now seen corresponding path program 1 times [2020-09-25 12:32:15,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:15,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2061655415] [2020-09-25 12:32:15,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:15,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:15,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:15,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:16,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:16,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 12:32:16,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:32:16,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 870 [2020-09-25 12:32:16,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:16,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:16,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:32:16,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 12:32:16,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 12:32:16,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:32:16,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:16,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:16,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:16,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:32:16,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:16,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:32:16,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:16,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:16,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:16,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:16,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:16,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:16,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:16,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2061655415] [2020-09-25 12:32:16,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:16,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 12:32:16,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104175913] [2020-09-25 12:32:16,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:32:16,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:16,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:32:16,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:32:16,611 INFO L87 Difference]: Start difference. First operand 445 states and 457 transitions. Second operand 10 states. [2020-09-25 12:32:18,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:18,460 INFO L93 Difference]: Finished difference Result 512 states and 528 transitions. [2020-09-25 12:32:18,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 12:32:18,461 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-09-25 12:32:18,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:18,464 INFO L225 Difference]: With dead ends: 512 [2020-09-25 12:32:18,464 INFO L226 Difference]: Without dead ends: 500 [2020-09-25 12:32:18,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:32:18,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-09-25 12:32:18,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 433. [2020-09-25 12:32:18,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-09-25 12:32:18,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 445 transitions. [2020-09-25 12:32:18,479 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 445 transitions. Word has length 52 [2020-09-25 12:32:18,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:18,482 INFO L479 AbstractCegarLoop]: Abstraction has 433 states and 445 transitions. [2020-09-25 12:32:18,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:32:18,483 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 445 transitions. [2020-09-25 12:32:18,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 12:32:18,493 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:18,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:18,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:32:18,494 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:18,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:18,494 INFO L82 PathProgramCache]: Analyzing trace with hash 784264785, now seen corresponding path program 1 times [2020-09-25 12:32:18,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:18,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339863395] [2020-09-25 12:32:18,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:18,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:18,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:18,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:18,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 12:32:18,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:32:18,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422 [2020-09-25 12:32:18,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:18,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:18,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:32:18,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 12:32:18,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 12:32:18,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:19,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:19,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:19,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:19,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:32:19,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:19,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:32:19,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:19,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:19,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:19,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:19,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339863395] [2020-09-25 12:32:19,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:19,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:32:19,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618899481] [2020-09-25 12:32:19,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:32:19,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:19,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:32:19,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:32:19,024 INFO L87 Difference]: Start difference. First operand 433 states and 445 transitions. Second operand 7 states. [2020-09-25 12:32:20,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:20,351 INFO L93 Difference]: Finished difference Result 499 states and 513 transitions. [2020-09-25 12:32:20,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:32:20,352 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-09-25 12:32:20,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:20,356 INFO L225 Difference]: With dead ends: 499 [2020-09-25 12:32:20,356 INFO L226 Difference]: Without dead ends: 497 [2020-09-25 12:32:20,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 12:32:20,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-09-25 12:32:20,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 431. [2020-09-25 12:32:20,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-09-25 12:32:20,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 443 transitions. [2020-09-25 12:32:20,368 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 443 transitions. Word has length 57 [2020-09-25 12:32:20,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:20,369 INFO L479 AbstractCegarLoop]: Abstraction has 431 states and 443 transitions. [2020-09-25 12:32:20,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:32:20,369 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 443 transitions. [2020-09-25 12:32:20,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 12:32:20,370 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:20,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:20,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:32:20,371 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:20,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:20,372 INFO L82 PathProgramCache]: Analyzing trace with hash 2053600793, now seen corresponding path program 1 times [2020-09-25 12:32:20,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:20,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656788109] [2020-09-25 12:32:20,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:20,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:20,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:20,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:20,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 12:32:20,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:32:20,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-09-25 12:32:20,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:20,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:20,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:32:20,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 12:32:20,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 12:32:20,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:20,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:20,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:20,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:20,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:32:20,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:20,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:32:20,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:20,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:20,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:20,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:20,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:20,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:20,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:20,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656788109] [2020-09-25 12:32:20,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:20,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:32:20,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674268432] [2020-09-25 12:32:20,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:32:20,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:20,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:32:20,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:32:20,869 INFO L87 Difference]: Start difference. First operand 431 states and 443 transitions. Second operand 7 states. [2020-09-25 12:32:22,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:22,034 INFO L93 Difference]: Finished difference Result 431 states and 443 transitions. [2020-09-25 12:32:22,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 12:32:22,035 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-09-25 12:32:22,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:22,040 INFO L225 Difference]: With dead ends: 431 [2020-09-25 12:32:22,040 INFO L226 Difference]: Without dead ends: 429 [2020-09-25 12:32:22,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:32:22,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-25 12:32:22,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2020-09-25 12:32:22,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-09-25 12:32:22,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 441 transitions. [2020-09-25 12:32:22,051 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 441 transitions. Word has length 57 [2020-09-25 12:32:22,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:22,052 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 441 transitions. [2020-09-25 12:32:22,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:32:22,053 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 441 transitions. [2020-09-25 12:32:22,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 12:32:22,054 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:22,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:22,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:32:22,055 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:22,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:22,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1921870681, now seen corresponding path program 1 times [2020-09-25 12:32:22,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:22,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640012935] [2020-09-25 12:32:22,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:22,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:22,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:22,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:22,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 12:32:22,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:32:22,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-09-25 12:32:22,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:22,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:32:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 12:32:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 12:32:22,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:22,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:22,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:22,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:22,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:32:22,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:22,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:32:22,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:22,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:22,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:22,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:22,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640012935] [2020-09-25 12:32:22,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:22,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:32:22,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749970386] [2020-09-25 12:32:22,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:32:22,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:22,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:32:22,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:32:22,491 INFO L87 Difference]: Start difference. First operand 429 states and 441 transitions. Second operand 7 states. [2020-09-25 12:32:23,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:23,666 INFO L93 Difference]: Finished difference Result 478 states and 492 transitions. [2020-09-25 12:32:23,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:32:23,667 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-09-25 12:32:23,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:23,670 INFO L225 Difference]: With dead ends: 478 [2020-09-25 12:32:23,670 INFO L226 Difference]: Without dead ends: 476 [2020-09-25 12:32:23,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 12:32:23,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-25 12:32:23,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 427. [2020-09-25 12:32:23,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-09-25 12:32:23,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 439 transitions. [2020-09-25 12:32:23,689 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 439 transitions. Word has length 57 [2020-09-25 12:32:23,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:23,691 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 439 transitions. [2020-09-25 12:32:23,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:32:23,691 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 439 transitions. [2020-09-25 12:32:23,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 12:32:23,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:23,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:23,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:32:23,693 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:23,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:23,694 INFO L82 PathProgramCache]: Analyzing trace with hash -382650347, now seen corresponding path program 1 times [2020-09-25 12:32:23,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:23,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761833339] [2020-09-25 12:32:23,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:23,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:23,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:24,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:24,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 12:32:24,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:32:24,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1109 [2020-09-25 12:32:24,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:24,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:24,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:32:24,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 12:32:24,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 12:32:24,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:24,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:24,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:24,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:24,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:32:24,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:24,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:32:24,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:24,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:24,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:24,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:24,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761833339] [2020-09-25 12:32:24,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:24,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:32:24,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334137382] [2020-09-25 12:32:24,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:32:24,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:24,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:32:24,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:32:24,999 INFO L87 Difference]: Start difference. First operand 427 states and 439 transitions. Second operand 8 states. [2020-09-25 12:32:26,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:26,516 INFO L93 Difference]: Finished difference Result 494 states and 508 transitions. [2020-09-25 12:32:26,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 12:32:26,518 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2020-09-25 12:32:26,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:26,520 INFO L225 Difference]: With dead ends: 494 [2020-09-25 12:32:26,521 INFO L226 Difference]: Without dead ends: 492 [2020-09-25 12:32:26,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:32:26,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-09-25 12:32:26,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 425. [2020-09-25 12:32:26,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-09-25 12:32:26,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 437 transitions. [2020-09-25 12:32:26,532 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 437 transitions. Word has length 62 [2020-09-25 12:32:26,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:26,533 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 437 transitions. [2020-09-25 12:32:26,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:32:26,533 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 437 transitions. [2020-09-25 12:32:26,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 12:32:26,534 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:26,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:26,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 12:32:26,534 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:26,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:26,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1546196018, now seen corresponding path program 1 times [2020-09-25 12:32:26,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:26,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855215633] [2020-09-25 12:32:26,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:26,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:26,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:27,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:27,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 12:32:27,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:32:27,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 990 [2020-09-25 12:32:27,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:27,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:27,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:32:27,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 12:32:27,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 12:32:27,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:27,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:27,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:27,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:27,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:32:27,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:27,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:32:27,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:27,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:27,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:27,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:27,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:27,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:27,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:27,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855215633] [2020-09-25 12:32:27,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:27,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:32:27,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128862092] [2020-09-25 12:32:27,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:32:27,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:27,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:32:27,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:32:27,651 INFO L87 Difference]: Start difference. First operand 425 states and 437 transitions. Second operand 8 states. [2020-09-25 12:32:28,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:28,946 INFO L93 Difference]: Finished difference Result 425 states and 437 transitions. [2020-09-25 12:32:28,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 12:32:28,947 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2020-09-25 12:32:28,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:28,950 INFO L225 Difference]: With dead ends: 425 [2020-09-25 12:32:28,950 INFO L226 Difference]: Without dead ends: 413 [2020-09-25 12:32:28,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-09-25 12:32:28,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-09-25 12:32:28,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2020-09-25 12:32:28,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-09-25 12:32:28,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 425 transitions. [2020-09-25 12:32:28,960 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 425 transitions. Word has length 62 [2020-09-25 12:32:28,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:28,961 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 425 transitions. [2020-09-25 12:32:28,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:32:28,961 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 425 transitions. [2020-09-25 12:32:28,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 12:32:28,962 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:28,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:28,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 12:32:28,963 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:28,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:28,963 INFO L82 PathProgramCache]: Analyzing trace with hash 781872345, now seen corresponding path program 1 times [2020-09-25 12:32:28,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:28,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226787399] [2020-09-25 12:32:28,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:28,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:29,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:29,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:29,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 12:32:29,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:32:29,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 972 [2020-09-25 12:32:29,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:29,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:29,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:32:29,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 12:32:29,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 12:32:29,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:30,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:30,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:30,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:30,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:32:30,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:30,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:32:30,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:30,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:30,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:30,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:30,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:30,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:30,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:30,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226787399] [2020-09-25 12:32:30,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:30,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:32:30,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317303963] [2020-09-25 12:32:30,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:32:30,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:30,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:32:30,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:32:30,079 INFO L87 Difference]: Start difference. First operand 413 states and 425 transitions. Second operand 8 states. [2020-09-25 12:32:31,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:31,546 INFO L93 Difference]: Finished difference Result 453 states and 467 transitions. [2020-09-25 12:32:31,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 12:32:31,547 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2020-09-25 12:32:31,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:31,550 INFO L225 Difference]: With dead ends: 453 [2020-09-25 12:32:31,550 INFO L226 Difference]: Without dead ends: 451 [2020-09-25 12:32:31,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:32:31,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-09-25 12:32:31,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 411. [2020-09-25 12:32:31,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-09-25 12:32:31,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 423 transitions. [2020-09-25 12:32:31,571 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 423 transitions. Word has length 62 [2020-09-25 12:32:31,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:31,571 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 423 transitions. [2020-09-25 12:32:31,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:32:31,572 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 423 transitions. [2020-09-25 12:32:31,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 12:32:31,573 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:31,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:31,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 12:32:31,574 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:31,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:31,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1199808863, now seen corresponding path program 1 times [2020-09-25 12:32:31,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:31,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308098583] [2020-09-25 12:32:31,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:31,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:31,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:31,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:32,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:32,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:32,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:33,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:33,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:33,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:34,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:36,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:36,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 12:32:36,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 12:32:36,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 12:32:36,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:36,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:36,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:32:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 12:32:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 12:32:36,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:36,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:36,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:36,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:36,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:32:36,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:36,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:32:36,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:36,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:36,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:36,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:36,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:36,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:32:36,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:36,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308098583] [2020-09-25 12:32:36,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:36,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:32:36,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269862468] [2020-09-25 12:32:36,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:32:36,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:36,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:32:36,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:32:36,685 INFO L87 Difference]: Start difference. First operand 411 states and 423 transitions. Second operand 8 states. [2020-09-25 12:32:38,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:38,049 INFO L93 Difference]: Finished difference Result 411 states and 423 transitions. [2020-09-25 12:32:38,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:32:38,050 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2020-09-25 12:32:38,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:38,052 INFO L225 Difference]: With dead ends: 411 [2020-09-25 12:32:38,052 INFO L226 Difference]: Without dead ends: 409 [2020-09-25 12:32:38,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-25 12:32:38,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2020-09-25 12:32:38,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2020-09-25 12:32:38,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-09-25 12:32:38,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 421 transitions. [2020-09-25 12:32:38,062 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 421 transitions. Word has length 70 [2020-09-25 12:32:38,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:38,063 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 421 transitions. [2020-09-25 12:32:38,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:32:38,063 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 421 transitions. [2020-09-25 12:32:38,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 12:32:38,064 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:38,064 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:38,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 12:32:38,065 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:38,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:38,065 INFO L82 PathProgramCache]: Analyzing trace with hash 886846446, now seen corresponding path program 1 times [2020-09-25 12:32:38,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:38,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409525757] [2020-09-25 12:32:38,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:38,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:38,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:38,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:38,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:41,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:41,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 12:32:41,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:32:41,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3406 [2020-09-25 12:32:41,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:41,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:41,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:32:41,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 12:32:41,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 12:32:41,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:41,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:41,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:41,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:41,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:32:41,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:41,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:32:41,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:41,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:41,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:41,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:32:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:41,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409525757] [2020-09-25 12:32:41,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:41,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:32:41,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719569077] [2020-09-25 12:32:41,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:32:41,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:41,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:32:41,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:32:41,606 INFO L87 Difference]: Start difference. First operand 409 states and 421 transitions. Second operand 8 states. [2020-09-25 12:32:42,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:42,884 INFO L93 Difference]: Finished difference Result 409 states and 421 transitions. [2020-09-25 12:32:42,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 12:32:42,885 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2020-09-25 12:32:42,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:42,887 INFO L225 Difference]: With dead ends: 409 [2020-09-25 12:32:42,887 INFO L226 Difference]: Without dead ends: 222 [2020-09-25 12:32:42,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-09-25 12:32:42,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-09-25 12:32:42,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2020-09-25 12:32:42,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-09-25 12:32:42,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 222 transitions. [2020-09-25 12:32:42,894 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 222 transitions. Word has length 75 [2020-09-25 12:32:42,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:42,895 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 222 transitions. [2020-09-25 12:32:42,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:32:42,895 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 222 transitions. [2020-09-25 12:32:42,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-25 12:32:42,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:42,897 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:42,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 12:32:42,898 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:42,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:42,898 INFO L82 PathProgramCache]: Analyzing trace with hash -778836105, now seen corresponding path program 1 times [2020-09-25 12:32:42,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:42,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391244236] [2020-09-25 12:32:42,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:42,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:43,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:43,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:43,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:43,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:43,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:43,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:47,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:47,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-09-25 12:32:47,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:32:47,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 12:32:47,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:47,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:47,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:32:47,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 12:32:47,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-25 12:32:47,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:48,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:48,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:48,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:48,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:32:48,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:48,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:32:48,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:48,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:48,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:48,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:48,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:48,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [391244236] [2020-09-25 12:32:48,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:48,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 12:32:48,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389752319] [2020-09-25 12:32:48,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 12:32:48,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:48,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 12:32:48,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-09-25 12:32:48,288 INFO L87 Difference]: Start difference. First operand 222 states and 222 transitions. Second operand 14 states. [2020-09-25 12:32:49,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:49,645 INFO L93 Difference]: Finished difference Result 247 states and 247 transitions. [2020-09-25 12:32:49,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 12:32:49,646 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 196 [2020-09-25 12:32:49,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:49,648 INFO L225 Difference]: With dead ends: 247 [2020-09-25 12:32:49,648 INFO L226 Difference]: Without dead ends: 245 [2020-09-25 12:32:49,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=208, Invalid=494, Unknown=0, NotChecked=0, Total=702 [2020-09-25 12:32:49,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-09-25 12:32:49,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 220. [2020-09-25 12:32:49,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-25 12:32:49,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 220 transitions. [2020-09-25 12:32:49,654 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 220 transitions. Word has length 196 [2020-09-25 12:32:49,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:49,655 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 220 transitions. [2020-09-25 12:32:49,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 12:32:49,655 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 220 transitions. [2020-09-25 12:32:49,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-25 12:32:49,657 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:49,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:49,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 12:32:49,658 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:49,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:49,658 INFO L82 PathProgramCache]: Analyzing trace with hash -687472165, now seen corresponding path program 1 times [2020-09-25 12:32:49,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:49,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060991755] [2020-09-25 12:32:49,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:49,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:49,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:50,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:50,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:50,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:50,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:50,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:54,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:54,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-09-25 12:32:54,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:32:54,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 12:32:54,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:54,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:32:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 12:32:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-25 12:32:54,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:54,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:54,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:54,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:54,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:32:54,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:54,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:32:54,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:54,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:54,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:54,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:54,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:54,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:55,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:55,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060991755] [2020-09-25 12:32:55,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:55,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 12:32:55,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900960345] [2020-09-25 12:32:55,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 12:32:55,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:55,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 12:32:55,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-09-25 12:32:55,020 INFO L87 Difference]: Start difference. First operand 220 states and 220 transitions. Second operand 14 states.