/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:35:29,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:35:29,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:35:29,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:35:29,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:35:29,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:35:29,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:35:29,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:35:29,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:35:29,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:35:29,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:35:29,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:35:29,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:35:29,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:35:29,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:35:29,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:35:29,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:35:29,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:35:29,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:35:29,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:35:29,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:35:29,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:35:30,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:35:30,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:35:30,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:35:30,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:35:30,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:35:30,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:35:30,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:35:30,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:35:30,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:35:30,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:35:30,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:35:30,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:35:30,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:35:30,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:35:30,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:35:30,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:35:30,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:35:30,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:35:30,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:35:30,034 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 04:35:30,078 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:35:30,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:35:30,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:35:30,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:35:30,082 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:35:30,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:35:30,083 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:35:30,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:35:30,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:35:30,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:35:30,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:35:30,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:35:30,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:35:30,085 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:35:30,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:35:30,086 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:35:30,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:35:30,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:35:30,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:35:30,088 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:35:30,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:35:30,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:35:30,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:35:30,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:35:30,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:35:30,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:35:30,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:35:30,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:35:30,092 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:35:30,093 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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:35:30,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:35:30,561 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:35:30,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:35:30,568 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:35:30,568 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:35:30,570 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2020-09-25 04:35:30,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f39416474/370367d5d1e84212bdc3cfef01be74e6/FLAGd2459dadf [2020-09-25 04:35:31,231 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:35:31,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2020-09-25 04:35:31,251 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f39416474/370367d5d1e84212bdc3cfef01be74e6/FLAGd2459dadf [2020-09-25 04:35:31,510 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f39416474/370367d5d1e84212bdc3cfef01be74e6 [2020-09-25 04:35:31,524 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:35:31,529 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:35:31,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:35:31,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:35:31,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:35:31,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:35:31" (1/1) ... [2020-09-25 04:35:31,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@784726a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:31, skipping insertion in model container [2020-09-25 04:35:31,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:35:31" (1/1) ... [2020-09-25 04:35:31,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:35:31,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:35:31,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:35:31,867 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:35:31,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:35:31,942 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:35:31,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:31 WrapperNode [2020-09-25 04:35:31,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:35:31,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:35:31,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:35:31,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:35:32,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:31" (1/1) ... [2020-09-25 04:35:32,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:31" (1/1) ... [2020-09-25 04:35:32,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:31" (1/1) ... [2020-09-25 04:35:32,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:31" (1/1) ... [2020-09-25 04:35:32,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:31" (1/1) ... [2020-09-25 04:35:32,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:31" (1/1) ... [2020-09-25 04:35:32,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:31" (1/1) ... [2020-09-25 04:35:32,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:35:32,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:35:32,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:35:32,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:35:32,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:31" (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 04:35:32,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:35:32,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:35:32,149 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 04:35:32,149 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:35:32,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:35:32,150 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 04:35:32,150 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 04:35:32,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 04:35:32,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:35:32,150 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:35:32,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:35:32,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:35:32,818 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:35:32,820 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 04:35:32,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:35:32 BoogieIcfgContainer [2020-09-25 04:35:32,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:35:32,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:35:32,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:35:32,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:35:32,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:35:31" (1/3) ... [2020-09-25 04:35:32,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb1ca0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:35:32, skipping insertion in model container [2020-09-25 04:35:32,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:31" (2/3) ... [2020-09-25 04:35:32,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb1ca0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:35:32, skipping insertion in model container [2020-09-25 04:35:32,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:35:32" (3/3) ... [2020-09-25 04:35:32,849 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+lhb-reducer.c [2020-09-25 04:35:32,863 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:35:32,873 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-09-25 04:35:32,893 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-09-25 04:35:32,927 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:35:32,928 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:35:32,928 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:35:32,928 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:35:32,928 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:35:32,928 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:35:32,929 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:35:32,929 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:35:32,959 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states. [2020-09-25 04:35:32,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 04:35:32,968 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:32,969 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] [2020-09-25 04:35:32,970 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:32,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:32,977 INFO L82 PathProgramCache]: Analyzing trace with hash 150776909, now seen corresponding path program 1 times [2020-09-25 04:35:32,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:32,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285684352] [2020-09-25 04:35:32,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:33,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:33,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:33,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 04:35:33,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:33,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-09-25 04:35:33,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:33,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:33,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:35:33,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 04:35:33,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 04:35:33,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:35:33,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:33,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:33,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:33,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:33,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:33,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:35:33,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:33,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:33,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:33,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:33,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:33,684 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 04:35:33,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285684352] [2020-09-25 04:35:33,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:33,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:35:33,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745126503] [2020-09-25 04:35:33,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:35:33,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:33,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:35:33,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:35:33,719 INFO L87 Difference]: Start difference. First operand 223 states. Second operand 8 states. [2020-09-25 04:35:34,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:34,631 INFO L93 Difference]: Finished difference Result 339 states and 382 transitions. [2020-09-25 04:35:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:35:34,633 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-09-25 04:35:34,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:34,651 INFO L225 Difference]: With dead ends: 339 [2020-09-25 04:35:34,651 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 04:35:34,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:35:34,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 04:35:34,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 193. [2020-09-25 04:35:34,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-25 04:35:34,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 197 transitions. [2020-09-25 04:35:34,731 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 197 transitions. Word has length 33 [2020-09-25 04:35:34,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:34,732 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 197 transitions. [2020-09-25 04:35:34,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:35:34,732 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 197 transitions. [2020-09-25 04:35:34,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 04:35:34,734 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:34,734 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] [2020-09-25 04:35:34,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:35:34,735 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:34,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:34,735 INFO L82 PathProgramCache]: Analyzing trace with hash 661447885, now seen corresponding path program 1 times [2020-09-25 04:35:34,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:34,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946008507] [2020-09-25 04:35:34,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:34,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:34,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:34,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 04:35:34,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:34,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-25 04:35:34,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:34,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:35:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 04:35:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 04:35:34,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:35,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:35,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:35,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:35,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:35,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:35,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:35:35,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:35,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:35,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:35,047 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 04:35:35,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946008507] [2020-09-25 04:35:35,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:35,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:35:35,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975991797] [2020-09-25 04:35:35,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:35:35,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:35,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:35:35,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:35:35,052 INFO L87 Difference]: Start difference. First operand 193 states and 197 transitions. Second operand 8 states. [2020-09-25 04:35:35,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:35,878 INFO L93 Difference]: Finished difference Result 287 states and 293 transitions. [2020-09-25 04:35:35,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:35:35,879 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-09-25 04:35:35,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:35,882 INFO L225 Difference]: With dead ends: 287 [2020-09-25 04:35:35,882 INFO L226 Difference]: Without dead ends: 285 [2020-09-25 04:35:35,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:35:35,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-25 04:35:35,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 191. [2020-09-25 04:35:35,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-25 04:35:35,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 195 transitions. [2020-09-25 04:35:35,911 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 195 transitions. Word has length 33 [2020-09-25 04:35:35,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:35,911 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 195 transitions. [2020-09-25 04:35:35,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:35:35,912 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 195 transitions. [2020-09-25 04:35:35,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 04:35:35,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:35,917 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] [2020-09-25 04:35:35,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:35:35,917 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:35,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:35,917 INFO L82 PathProgramCache]: Analyzing trace with hash -538052139, now seen corresponding path program 1 times [2020-09-25 04:35:35,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:35,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777262298] [2020-09-25 04:35:35,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:35,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:35,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:37,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:37,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 04:35:37,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:35:37,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1442 [2020-09-25 04:35:37,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:37,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:37,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:35:37,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 04:35:37,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 04:35:37,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:35:37,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:37,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:37,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:37,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:37,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:37,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:37,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:37,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:37,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:37,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:37,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:37,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:37,452 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 04:35:37,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777262298] [2020-09-25 04:35:37,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:37,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:35:37,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378275483] [2020-09-25 04:35:37,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:35:37,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:37,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:35:37,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:35:37,455 INFO L87 Difference]: Start difference. First operand 191 states and 195 transitions. Second operand 8 states. [2020-09-25 04:35:37,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:37,947 INFO L93 Difference]: Finished difference Result 191 states and 195 transitions. [2020-09-25 04:35:37,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:35:37,948 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-25 04:35:37,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:37,950 INFO L225 Difference]: With dead ends: 191 [2020-09-25 04:35:37,950 INFO L226 Difference]: Without dead ends: 189 [2020-09-25 04:35:37,951 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 04:35:37,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-09-25 04:35:37,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2020-09-25 04:35:37,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-25 04:35:37,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 193 transitions. [2020-09-25 04:35:37,962 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 193 transitions. Word has length 43 [2020-09-25 04:35:37,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:37,963 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 193 transitions. [2020-09-25 04:35:37,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:35:37,963 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 193 transitions. [2020-09-25 04:35:37,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 04:35:37,965 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:37,965 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] [2020-09-25 04:35:37,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:35:37,965 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:37,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:37,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1061846924, now seen corresponding path program 1 times [2020-09-25 04:35:37,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:37,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194134079] [2020-09-25 04:35:37,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:37,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:39,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 04:35:39,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:35:39,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1274 [2020-09-25 04:35:39,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:39,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:39,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:35:39,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 04:35:39,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 04:35:39,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 04:35:39,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:39,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:39,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:39,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:39,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:39,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:39,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:39,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:39,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:39,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:39,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:39,335 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 04:35:39,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194134079] [2020-09-25 04:35:39,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:39,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:35:39,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945356683] [2020-09-25 04:35:39,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:35:39,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:39,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:35:39,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:35:39,338 INFO L87 Difference]: Start difference. First operand 189 states and 193 transitions. Second operand 8 states. [2020-09-25 04:35:39,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:39,806 INFO L93 Difference]: Finished difference Result 189 states and 193 transitions. [2020-09-25 04:35:39,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:35:39,806 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-25 04:35:39,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:39,808 INFO L225 Difference]: With dead ends: 189 [2020-09-25 04:35:39,808 INFO L226 Difference]: Without dead ends: 187 [2020-09-25 04:35:39,809 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 04:35:39,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-09-25 04:35:39,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2020-09-25 04:35:39,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-25 04:35:39,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 191 transitions. [2020-09-25 04:35:39,818 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 191 transitions. Word has length 43 [2020-09-25 04:35:39,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:39,819 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 191 transitions. [2020-09-25 04:35:39,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:35:39,819 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 191 transitions. [2020-09-25 04:35:39,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 04:35:39,821 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:39,821 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] [2020-09-25 04:35:39,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:35:39,822 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:39,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:39,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1029151645, now seen corresponding path program 1 times [2020-09-25 04:35:39,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:39,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362019984] [2020-09-25 04:35:39,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:39,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:40,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:40,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 04:35:40,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:35:40,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 783 [2020-09-25 04:35:40,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:40,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:35:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 04:35:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:35:40,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:40,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:40,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:40,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:40,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:40,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:40,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:35:40,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:40,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:40,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:40,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:40,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:40,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:40,682 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 04:35:40,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362019984] [2020-09-25 04:35:40,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:40,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:35:40,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112736041] [2020-09-25 04:35:40,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:35:40,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:40,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:35:40,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:35:40,685 INFO L87 Difference]: Start difference. First operand 187 states and 191 transitions. Second operand 6 states. [2020-09-25 04:35:40,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:40,979 INFO L93 Difference]: Finished difference Result 187 states and 191 transitions. [2020-09-25 04:35:40,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:35:40,980 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2020-09-25 04:35:40,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:40,981 INFO L225 Difference]: With dead ends: 187 [2020-09-25 04:35:40,981 INFO L226 Difference]: Without dead ends: 175 [2020-09-25 04:35:40,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:35:40,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-09-25 04:35:40,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2020-09-25 04:35:40,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-09-25 04:35:40,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 179 transitions. [2020-09-25 04:35:40,989 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 179 transitions. Word has length 48 [2020-09-25 04:35:40,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:40,990 INFO L479 AbstractCegarLoop]: Abstraction has 175 states and 179 transitions. [2020-09-25 04:35:40,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:35:40,990 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 179 transitions. [2020-09-25 04:35:40,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 04:35:40,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:40,992 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] [2020-09-25 04:35:40,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:35:40,992 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:40,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:40,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1480933896, now seen corresponding path program 1 times [2020-09-25 04:35:40,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:40,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010365409] [2020-09-25 04:35:40,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:41,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:41,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:41,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:41,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 04:35:41,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:41,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 04:35:41,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:41,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:41,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:35:41,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 04:35:41,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:35:41,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:41,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:41,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:41,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:41,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:41,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:41,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:41,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:41,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:41,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:41,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:41,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:41,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:41,312 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 04:35:41,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010365409] [2020-09-25 04:35:41,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:41,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:35:41,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891262152] [2020-09-25 04:35:41,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:35:41,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:41,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:35:41,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:35:41,317 INFO L87 Difference]: Start difference. First operand 175 states and 179 transitions. Second operand 7 states. [2020-09-25 04:35:41,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:41,939 INFO L93 Difference]: Finished difference Result 297 states and 304 transitions. [2020-09-25 04:35:41,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:35:41,940 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2020-09-25 04:35:41,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:41,942 INFO L225 Difference]: With dead ends: 297 [2020-09-25 04:35:41,942 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 04:35:41,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:35:41,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 04:35:41,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 173. [2020-09-25 04:35:41,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-09-25 04:35:41,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 177 transitions. [2020-09-25 04:35:41,952 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 177 transitions. Word has length 48 [2020-09-25 04:35:41,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:41,952 INFO L479 AbstractCegarLoop]: Abstraction has 173 states and 177 transitions. [2020-09-25 04:35:41,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:35:41,952 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 177 transitions. [2020-09-25 04:35:41,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 04:35:41,954 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:41,954 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] [2020-09-25 04:35:41,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:35:41,954 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:41,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:41,955 INFO L82 PathProgramCache]: Analyzing trace with hash 28591951, now seen corresponding path program 1 times [2020-09-25 04:35:41,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:41,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782437322] [2020-09-25 04:35:41,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:41,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:42,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 04:35:42,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:42,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-25 04:35:42,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:42,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:42,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:35:42,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 04:35:42,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:35:42,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:42,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:42,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:42,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:42,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:42,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:42,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:42,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:42,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:42,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:42,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:42,295 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 04:35:42,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782437322] [2020-09-25 04:35:42,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:42,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:35:42,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299560610] [2020-09-25 04:35:42,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:35:42,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:42,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:35:42,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:35:42,297 INFO L87 Difference]: Start difference. First operand 173 states and 177 transitions. Second operand 7 states. [2020-09-25 04:35:42,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:42,790 INFO L93 Difference]: Finished difference Result 256 states and 262 transitions. [2020-09-25 04:35:42,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:35:42,791 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2020-09-25 04:35:42,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:42,794 INFO L225 Difference]: With dead ends: 256 [2020-09-25 04:35:42,794 INFO L226 Difference]: Without dead ends: 254 [2020-09-25 04:35:42,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:35:42,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-25 04:35:42,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 171. [2020-09-25 04:35:42,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-09-25 04:35:42,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 175 transitions. [2020-09-25 04:35:42,802 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 175 transitions. Word has length 48 [2020-09-25 04:35:42,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:42,803 INFO L479 AbstractCegarLoop]: Abstraction has 171 states and 175 transitions. [2020-09-25 04:35:42,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:35:42,803 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 175 transitions. [2020-09-25 04:35:42,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 04:35:42,804 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:42,804 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] [2020-09-25 04:35:42,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:35:42,805 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:42,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:42,805 INFO L82 PathProgramCache]: Analyzing trace with hash -2081291309, now seen corresponding path program 1 times [2020-09-25 04:35:42,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:42,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878820343] [2020-09-25 04:35:42,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:42,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:43,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:43,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 04:35:43,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:35:43,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 748 [2020-09-25 04:35:43,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:43,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:35:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 04:35:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:35:43,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:43,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:43,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:43,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:43,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:43,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:43,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:35:43,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:43,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:43,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:43,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:43,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:43,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:43,630 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 04:35:43,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878820343] [2020-09-25 04:35:43,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:43,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:35:43,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330099199] [2020-09-25 04:35:43,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:35:43,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:43,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:35:43,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:35:43,633 INFO L87 Difference]: Start difference. First operand 171 states and 175 transitions. Second operand 6 states. [2020-09-25 04:35:43,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:43,907 INFO L93 Difference]: Finished difference Result 171 states and 175 transitions. [2020-09-25 04:35:43,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:35:43,908 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2020-09-25 04:35:43,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:43,909 INFO L225 Difference]: With dead ends: 171 [2020-09-25 04:35:43,909 INFO L226 Difference]: Without dead ends: 159 [2020-09-25 04:35:43,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:35:43,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-09-25 04:35:43,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-09-25 04:35:43,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-09-25 04:35:43,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 163 transitions. [2020-09-25 04:35:43,916 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 163 transitions. Word has length 48 [2020-09-25 04:35:43,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:43,916 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 163 transitions. [2020-09-25 04:35:43,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:35:43,917 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 163 transitions. [2020-09-25 04:35:43,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 04:35:43,917 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:43,917 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] [2020-09-25 04:35:43,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:35:43,918 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:43,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:43,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1071744508, now seen corresponding path program 1 times [2020-09-25 04:35:43,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:43,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739968319] [2020-09-25 04:35:43,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:43,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:43,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:44,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:44,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:35:44,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:44,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-25 04:35:44,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:44,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:44,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:35:44,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 04:35:44,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 04:35:44,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:44,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:44,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:44,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:44,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:44,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:44,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:35:44,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:44,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:44,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:44,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:44,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:44,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:44,300 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 04:35:44,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1739968319] [2020-09-25 04:35:44,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:44,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:35:44,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552660018] [2020-09-25 04:35:44,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:35:44,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:44,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:35:44,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:35:44,303 INFO L87 Difference]: Start difference. First operand 159 states and 163 transitions. Second operand 7 states. [2020-09-25 04:35:44,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:44,756 INFO L93 Difference]: Finished difference Result 229 states and 235 transitions. [2020-09-25 04:35:44,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:35:44,756 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 04:35:44,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:44,758 INFO L225 Difference]: With dead ends: 229 [2020-09-25 04:35:44,758 INFO L226 Difference]: Without dead ends: 227 [2020-09-25 04:35:44,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:35:44,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-09-25 04:35:44,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 157. [2020-09-25 04:35:44,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-09-25 04:35:44,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 161 transitions. [2020-09-25 04:35:44,767 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 161 transitions. Word has length 53 [2020-09-25 04:35:44,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:44,768 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 161 transitions. [2020-09-25 04:35:44,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:35:44,768 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 161 transitions. [2020-09-25 04:35:44,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 04:35:44,769 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:44,769 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] [2020-09-25 04:35:44,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:35:44,769 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:44,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:44,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1179072694, now seen corresponding path program 1 times [2020-09-25 04:35:44,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:44,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703940995] [2020-09-25 04:35:44,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:44,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:44,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:45,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:45,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:35:45,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:45,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-25 04:35:45,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:45,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:45,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:35:45,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 04:35:45,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 04:35:45,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:45,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:45,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:45,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:45,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:45,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:45,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:45,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:45,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:45,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:45,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:45,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:45,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:45,127 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 04:35:45,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [703940995] [2020-09-25 04:35:45,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:45,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:35:45,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268768899] [2020-09-25 04:35:45,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:35:45,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:45,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:35:45,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:35:45,142 INFO L87 Difference]: Start difference. First operand 157 states and 161 transitions. Second operand 7 states. [2020-09-25 04:35:45,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:45,631 INFO L93 Difference]: Finished difference Result 210 states and 216 transitions. [2020-09-25 04:35:45,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:35:45,636 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 04:35:45,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:45,638 INFO L225 Difference]: With dead ends: 210 [2020-09-25 04:35:45,638 INFO L226 Difference]: Without dead ends: 208 [2020-09-25 04:35:45,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:35:45,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-09-25 04:35:45,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 155. [2020-09-25 04:35:45,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-25 04:35:45,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 159 transitions. [2020-09-25 04:35:45,644 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 159 transitions. Word has length 53 [2020-09-25 04:35:45,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:45,645 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 159 transitions. [2020-09-25 04:35:45,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:35:45,645 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 159 transitions. [2020-09-25 04:35:45,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 04:35:45,646 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:45,646 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] [2020-09-25 04:35:45,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 04:35:45,646 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:45,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:45,647 INFO L82 PathProgramCache]: Analyzing trace with hash -960286218, now seen corresponding path program 1 times [2020-09-25 04:35:45,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:45,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969621528] [2020-09-25 04:35:45,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:45,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:45,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:45,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:45,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:35:45,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:45,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-25 04:35:45,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:45,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:45,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:35:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 04:35:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 04:35:45,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:45,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:45,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:45,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:45,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:45,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:45,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:45,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:45,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:45,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:45,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:45,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:45,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:45,985 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 04:35:45,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969621528] [2020-09-25 04:35:45,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:45,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:35:45,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823091555] [2020-09-25 04:35:45,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:35:45,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:45,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:35:45,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:35:45,988 INFO L87 Difference]: Start difference. First operand 155 states and 159 transitions. Second operand 7 states. [2020-09-25 04:35:46,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:46,390 INFO L93 Difference]: Finished difference Result 161 states and 165 transitions. [2020-09-25 04:35:46,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:35:46,390 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 04:35:46,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:46,392 INFO L225 Difference]: With dead ends: 161 [2020-09-25 04:35:46,392 INFO L226 Difference]: Without dead ends: 159 [2020-09-25 04:35:46,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:35:46,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-09-25 04:35:46,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 153. [2020-09-25 04:35:46,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-09-25 04:35:46,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 157 transitions. [2020-09-25 04:35:46,398 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 157 transitions. Word has length 53 [2020-09-25 04:35:46,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:46,399 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 157 transitions. [2020-09-25 04:35:46,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:35:46,399 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 157 transitions. [2020-09-25 04:35:46,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 04:35:46,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:46,400 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] [2020-09-25 04:35:46,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 04:35:46,401 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:46,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:46,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1529900809, now seen corresponding path program 1 times [2020-09-25 04:35:46,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:46,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905596765] [2020-09-25 04:35:46,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:46,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:46,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:35:47,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:47,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 637 [2020-09-25 04:35:47,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:35:47,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 04:35:47,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 04:35:47,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:47,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:47,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:47,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:35:47,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:47,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:47,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:47,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:47,205 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 04:35:47,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905596765] [2020-09-25 04:35:47,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:47,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:35:47,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612738474] [2020-09-25 04:35:47,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:35:47,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:47,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:35:47,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:35:47,209 INFO L87 Difference]: Start difference. First operand 153 states and 157 transitions. Second operand 8 states. [2020-09-25 04:35:47,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:47,857 INFO L93 Difference]: Finished difference Result 257 states and 264 transitions. [2020-09-25 04:35:47,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:35:47,858 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-09-25 04:35:47,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:47,860 INFO L225 Difference]: With dead ends: 257 [2020-09-25 04:35:47,860 INFO L226 Difference]: Without dead ends: 255 [2020-09-25 04:35:47,861 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 04:35:47,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-09-25 04:35:47,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 151. [2020-09-25 04:35:47,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-09-25 04:35:47,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 155 transitions. [2020-09-25 04:35:47,868 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 155 transitions. Word has length 53 [2020-09-25 04:35:47,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:47,868 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 155 transitions. [2020-09-25 04:35:47,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:35:47,868 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 155 transitions. [2020-09-25 04:35:47,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 04:35:47,869 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:47,869 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] [2020-09-25 04:35:47,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 04:35:47,870 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:47,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:47,870 INFO L82 PathProgramCache]: Analyzing trace with hash -2001226185, now seen corresponding path program 1 times [2020-09-25 04:35:47,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:47,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303233588] [2020-09-25 04:35:47,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:48,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:48,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:35:48,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:48,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 599 [2020-09-25 04:35:48,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:48,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:48,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:35:48,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 04:35:48,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 04:35:48,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:48,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:48,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:48,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:48,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:48,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:48,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:48,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:48,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:48,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:48,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:48,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:48,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:48,578 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 04:35:48,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303233588] [2020-09-25 04:35:48,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:48,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:35:48,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057907549] [2020-09-25 04:35:48,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:35:48,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:48,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:35:48,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:35:48,580 INFO L87 Difference]: Start difference. First operand 151 states and 155 transitions. Second operand 8 states. [2020-09-25 04:35:49,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:49,142 INFO L93 Difference]: Finished difference Result 225 states and 231 transitions. [2020-09-25 04:35:49,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:35:49,142 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-09-25 04:35:49,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:49,144 INFO L225 Difference]: With dead ends: 225 [2020-09-25 04:35:49,144 INFO L226 Difference]: Without dead ends: 223 [2020-09-25 04:35:49,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:35:49,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-09-25 04:35:49,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 149. [2020-09-25 04:35:49,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-09-25 04:35:49,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 153 transitions. [2020-09-25 04:35:49,151 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 153 transitions. Word has length 53 [2020-09-25 04:35:49,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:49,151 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 153 transitions. [2020-09-25 04:35:49,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:35:49,151 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 153 transitions. [2020-09-25 04:35:49,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 04:35:49,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:49,152 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] [2020-09-25 04:35:49,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 04:35:49,153 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:49,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:49,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1125742038, now seen corresponding path program 1 times [2020-09-25 04:35:49,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:49,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014540004] [2020-09-25 04:35:49,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:49,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:49,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:50,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:50,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:35:50,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:50,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 905 [2020-09-25 04:35:50,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:50,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:50,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:35:50,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 04:35:50,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 04:35:50,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:50,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:50,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:50,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:50,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:50,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:50,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:50,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:50,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:50,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:50,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:50,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:50,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:50,249 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 04:35:50,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014540004] [2020-09-25 04:35:50,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:50,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:35:50,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877117445] [2020-09-25 04:35:50,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:35:50,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:50,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:35:50,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:35:50,251 INFO L87 Difference]: Start difference. First operand 149 states and 153 transitions. Second operand 9 states. [2020-09-25 04:35:50,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:50,855 INFO L93 Difference]: Finished difference Result 373 states and 384 transitions. [2020-09-25 04:35:50,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:35:50,856 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2020-09-25 04:35:50,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:50,858 INFO L225 Difference]: With dead ends: 373 [2020-09-25 04:35:50,858 INFO L226 Difference]: Without dead ends: 371 [2020-09-25 04:35:50,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:35:50,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-09-25 04:35:50,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 178. [2020-09-25 04:35:50,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-25 04:35:50,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 185 transitions. [2020-09-25 04:35:50,868 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 185 transitions. Word has length 58 [2020-09-25 04:35:50,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:50,868 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 185 transitions. [2020-09-25 04:35:50,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:35:50,869 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 185 transitions. [2020-09-25 04:35:50,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 04:35:50,869 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:50,870 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] [2020-09-25 04:35:50,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 04:35:50,870 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:50,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:50,871 INFO L82 PathProgramCache]: Analyzing trace with hash 894302084, now seen corresponding path program 1 times [2020-09-25 04:35:50,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:50,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386177846] [2020-09-25 04:35:50,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:50,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:50,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:51,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:51,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:35:51,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:51,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 880 [2020-09-25 04:35:51,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:51,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:51,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:35:51,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 04:35:51,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 04:35:51,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 04:35:51,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:51,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:51,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:51,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:51,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:51,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:51,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:51,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:51,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:51,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:51,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:51,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:51,918 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 04:35:51,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386177846] [2020-09-25 04:35:51,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:51,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:35:51,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811494689] [2020-09-25 04:35:51,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:35:51,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:51,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:35:51,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:35:51,920 INFO L87 Difference]: Start difference. First operand 178 states and 185 transitions. Second operand 9 states. [2020-09-25 04:35:52,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:52,515 INFO L93 Difference]: Finished difference Result 356 states and 367 transitions. [2020-09-25 04:35:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:35:52,516 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2020-09-25 04:35:52,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:52,521 INFO L225 Difference]: With dead ends: 356 [2020-09-25 04:35:52,521 INFO L226 Difference]: Without dead ends: 354 [2020-09-25 04:35:52,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:35:52,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-09-25 04:35:52,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 188. [2020-09-25 04:35:52,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-09-25 04:35:52,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 195 transitions. [2020-09-25 04:35:52,535 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 195 transitions. Word has length 58 [2020-09-25 04:35:52,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:52,536 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 195 transitions. [2020-09-25 04:35:52,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:35:52,536 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 195 transitions. [2020-09-25 04:35:52,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 04:35:52,537 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:52,537 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] [2020-09-25 04:35:52,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 04:35:52,538 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:52,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:52,539 INFO L82 PathProgramCache]: Analyzing trace with hash 579772635, now seen corresponding path program 1 times [2020-09-25 04:35:52,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:52,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803314840] [2020-09-25 04:35:52,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:52,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:52,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:35:53,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:53,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 916 [2020-09-25 04:35:53,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:35:53,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 04:35:53,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 04:35:53,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:53,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:53,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:53,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:53,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:53,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:53,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:53,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:53,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:53,629 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 04:35:53,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803314840] [2020-09-25 04:35:53,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:53,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:35:53,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587819301] [2020-09-25 04:35:53,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:35:53,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:53,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:35:53,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:35:53,632 INFO L87 Difference]: Start difference. First operand 188 states and 195 transitions. Second operand 9 states. [2020-09-25 04:35:54,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:54,044 INFO L93 Difference]: Finished difference Result 241 states and 248 transitions. [2020-09-25 04:35:54,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:35:54,045 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2020-09-25 04:35:54,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:54,046 INFO L225 Difference]: With dead ends: 241 [2020-09-25 04:35:54,046 INFO L226 Difference]: Without dead ends: 229 [2020-09-25 04:35:54,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-09-25 04:35:54,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-09-25 04:35:54,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 188. [2020-09-25 04:35:54,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-09-25 04:35:54,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 194 transitions. [2020-09-25 04:35:54,055 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 194 transitions. Word has length 58 [2020-09-25 04:35:54,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:54,055 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 194 transitions. [2020-09-25 04:35:54,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:35:54,055 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 194 transitions. [2020-09-25 04:35:54,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-25 04:35:54,056 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:54,056 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] [2020-09-25 04:35:54,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 04:35:54,057 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:54,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:54,057 INFO L82 PathProgramCache]: Analyzing trace with hash -71318262, now seen corresponding path program 1 times [2020-09-25 04:35:54,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:54,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844196092] [2020-09-25 04:35:54,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:54,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:54,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:54,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:54,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:56,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:56,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:56,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:56,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:56,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:56,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:59,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:59,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 04:35:59,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 04:35:59,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 04:35:59,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:59,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:59,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:35:59,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 04:35:59,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 04:35:59,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:59,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:59,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:59,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:59,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:35:59,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:59,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:35:59,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:59,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:59,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:59,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:59,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:59,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:59,155 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 04:35:59,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844196092] [2020-09-25 04:35:59,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:59,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:35:59,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807528288] [2020-09-25 04:35:59,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:35:59,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:59,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:35:59,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:35:59,161 INFO L87 Difference]: Start difference. First operand 188 states and 194 transitions. Second operand 8 states. [2020-09-25 04:35:59,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:59,604 INFO L93 Difference]: Finished difference Result 188 states and 194 transitions. [2020-09-25 04:35:59,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:35:59,604 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-09-25 04:35:59,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:59,606 INFO L225 Difference]: With dead ends: 188 [2020-09-25 04:35:59,606 INFO L226 Difference]: Without dead ends: 186 [2020-09-25 04:35:59,606 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 04:35:59,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-09-25 04:35:59,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2020-09-25 04:35:59,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-09-25 04:35:59,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 192 transitions. [2020-09-25 04:35:59,614 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 192 transitions. Word has length 66 [2020-09-25 04:35:59,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:59,614 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 192 transitions. [2020-09-25 04:35:59,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:35:59,614 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 192 transitions. [2020-09-25 04:35:59,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 04:35:59,615 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:59,615 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] [2020-09-25 04:35:59,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 04:35:59,616 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:59,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:59,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1574098677, now seen corresponding path program 1 times [2020-09-25 04:35:59,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:59,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938888780] [2020-09-25 04:35:59,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:59,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:59,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:59,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:00,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:01,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:01,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 04:36:01,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:36:01,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2234 [2020-09-25 04:36:01,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:01,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:36:01,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 04:36:01,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:36:01,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:01,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:36:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:01,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:01,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:01,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:36:01,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:01,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:01,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:01,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:01,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:01,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:01,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:01,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:01,926 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 04:36:01,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938888780] [2020-09-25 04:36:01,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:36:01,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:36:01,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511239693] [2020-09-25 04:36:01,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:36:01,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:36:01,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:36:01,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:36:01,933 INFO L87 Difference]: Start difference. First operand 186 states and 192 transitions. Second operand 6 states. [2020-09-25 04:36:02,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:36:02,293 INFO L93 Difference]: Finished difference Result 186 states and 192 transitions. [2020-09-25 04:36:02,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:36:02,294 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2020-09-25 04:36:02,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:36:02,296 INFO L225 Difference]: With dead ends: 186 [2020-09-25 04:36:02,296 INFO L226 Difference]: Without dead ends: 174 [2020-09-25 04:36:02,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:36:02,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-09-25 04:36:02,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-09-25 04:36:02,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-09-25 04:36:02,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 180 transitions. [2020-09-25 04:36:02,310 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 180 transitions. Word has length 71 [2020-09-25 04:36:02,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:36:02,310 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 180 transitions. [2020-09-25 04:36:02,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:36:02,311 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 180 transitions. [2020-09-25 04:36:02,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 04:36:02,312 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:36:02,312 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] [2020-09-25 04:36:02,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 04:36:02,313 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:36:02,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:36:02,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1231856020, now seen corresponding path program 1 times [2020-09-25 04:36:02,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:36:02,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482042895] [2020-09-25 04:36:02,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:36:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:02,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:02,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:02,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:05,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:05,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 04:36:05,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:36:05,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3632 [2020-09-25 04:36:05,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:05,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:05,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:36:05,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 04:36:05,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 04:36:05,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:06,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:36:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:06,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:06,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:06,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:36:06,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:06,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:06,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:06,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:06,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:06,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:06,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:06,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:36:06,115 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 04:36:06,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482042895] [2020-09-25 04:36:06,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:36:06,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:36:06,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306052925] [2020-09-25 04:36:06,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:36:06,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:36:06,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:36:06,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:36:06,120 INFO L87 Difference]: Start difference. First operand 174 states and 180 transitions. Second operand 10 states. [2020-09-25 04:36:06,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:36:06,970 INFO L93 Difference]: Finished difference Result 296 states and 306 transitions. [2020-09-25 04:36:06,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 04:36:06,970 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-25 04:36:06,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:36:06,972 INFO L225 Difference]: With dead ends: 296 [2020-09-25 04:36:06,972 INFO L226 Difference]: Without dead ends: 294 [2020-09-25 04:36:06,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-09-25 04:36:06,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-25 04:36:06,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 202. [2020-09-25 04:36:06,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-25 04:36:06,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 211 transitions. [2020-09-25 04:36:06,988 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 211 transitions. Word has length 71 [2020-09-25 04:36:06,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:36:06,990 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 211 transitions. [2020-09-25 04:36:06,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:36:06,990 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 211 transitions. [2020-09-25 04:36:06,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-25 04:36:06,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:36:06,991 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] [2020-09-25 04:36:06,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-25 04:36:06,992 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:36:06,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:36:06,992 INFO L82 PathProgramCache]: Analyzing trace with hash 706583424, now seen corresponding path program 1 times [2020-09-25 04:36:06,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:36:06,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791343013] [2020-09-25 04:36:06,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:36:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:07,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:07,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:07,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:10,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:10,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:36:10,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:36:10,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3415 [2020-09-25 04:36:10,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:10,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:10,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:36:10,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 04:36:10,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 04:36:10,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:10,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:36:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:10,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:10,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:10,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:36:10,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:10,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:10,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:10,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:10,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:10,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:10,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:10,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:10,591 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 04:36:10,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [791343013] [2020-09-25 04:36:10,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:36:10,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:36:10,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969583397] [2020-09-25 04:36:10,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:36:10,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:36:10,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:36:10,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:36:10,592 INFO L87 Difference]: Start difference. First operand 202 states and 211 transitions. Second operand 10 states. [2020-09-25 04:36:11,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:36:11,320 INFO L93 Difference]: Finished difference Result 346 states and 362 transitions. [2020-09-25 04:36:11,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:36:11,321 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-09-25 04:36:11,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:36:11,323 INFO L225 Difference]: With dead ends: 346 [2020-09-25 04:36:11,323 INFO L226 Difference]: Without dead ends: 344 [2020-09-25 04:36:11,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:36:11,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-09-25 04:36:11,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 202. [2020-09-25 04:36:11,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-25 04:36:11,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 211 transitions. [2020-09-25 04:36:11,335 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 211 transitions. Word has length 78 [2020-09-25 04:36:11,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:36:11,335 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 211 transitions. [2020-09-25 04:36:11,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:36:11,336 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 211 transitions. [2020-09-25 04:36:11,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-25 04:36:11,339 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:36:11,340 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] [2020-09-25 04:36:11,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-25 04:36:11,340 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:36:11,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:36:11,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1568339750, now seen corresponding path program 1 times [2020-09-25 04:36:11,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:36:11,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719569693] [2020-09-25 04:36:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:36:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:11,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:11,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:11,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:36:14,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:36:14,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3289 [2020-09-25 04:36:14,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:36:14,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 04:36:14,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 04:36:14,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:36:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:36:14,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:14,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:14,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:14,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,796 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 04:36:14,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719569693] [2020-09-25 04:36:14,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:36:14,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:36:14,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549564573] [2020-09-25 04:36:14,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:36:14,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:36:14,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:36:14,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:36:14,798 INFO L87 Difference]: Start difference. First operand 202 states and 211 transitions. Second operand 10 states. [2020-09-25 04:36:15,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:36:15,509 INFO L93 Difference]: Finished difference Result 305 states and 318 transitions. [2020-09-25 04:36:15,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:36:15,510 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-09-25 04:36:15,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:36:15,512 INFO L225 Difference]: With dead ends: 305 [2020-09-25 04:36:15,512 INFO L226 Difference]: Without dead ends: 303 [2020-09-25 04:36:15,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:36:15,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-09-25 04:36:15,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 243. [2020-09-25 04:36:15,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 04:36:15,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 255 transitions. [2020-09-25 04:36:15,528 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 255 transitions. Word has length 78 [2020-09-25 04:36:15,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:36:15,529 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 255 transitions. [2020-09-25 04:36:15,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:36:15,531 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 255 transitions. [2020-09-25 04:36:15,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-25 04:36:15,533 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:36:15,533 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] [2020-09-25 04:36:15,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-25 04:36:15,534 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:36:15,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:36:15,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1882869199, now seen corresponding path program 1 times [2020-09-25 04:36:15,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:36:15,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260189684] [2020-09-25 04:36:15,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:36:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:15,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:15,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:15,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:18,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:18,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:36:18,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:36:18,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3354 [2020-09-25 04:36:18,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:18,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:36:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 04:36:18,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 04:36:18,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:19,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:36:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:19,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:19,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:19,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:36:19,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:19,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:19,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:19,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:19,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:19,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:19,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:19,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:19,050 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 04:36:19,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260189684] [2020-09-25 04:36:19,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:36:19,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:36:19,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209197612] [2020-09-25 04:36:19,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:36:19,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:36:19,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:36:19,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:36:19,052 INFO L87 Difference]: Start difference. First operand 243 states and 255 transitions. Second operand 10 states. [2020-09-25 04:36:19,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:36:19,684 INFO L93 Difference]: Finished difference Result 255 states and 266 transitions. [2020-09-25 04:36:19,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:36:19,684 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-09-25 04:36:19,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:36:19,686 INFO L225 Difference]: With dead ends: 255 [2020-09-25 04:36:19,686 INFO L226 Difference]: Without dead ends: 157 [2020-09-25 04:36:19,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-09-25 04:36:19,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-09-25 04:36:19,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2020-09-25 04:36:19,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-09-25 04:36:19,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 164 transitions. [2020-09-25 04:36:19,694 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 164 transitions. Word has length 78 [2020-09-25 04:36:19,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:36:19,695 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 164 transitions. [2020-09-25 04:36:19,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:36:19,695 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 164 transitions. [2020-09-25 04:36:19,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 04:36:19,696 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:36:19,696 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:19,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-25 04:36:19,697 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:36:19,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:36:19,697 INFO L82 PathProgramCache]: Analyzing trace with hash 54927270, now seen corresponding path program 1 times [2020-09-25 04:36:19,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:36:19,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231214837] [2020-09-25 04:36:19,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:36:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:19,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:19,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:19,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:23,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:23,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 04:36:23,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:36:23,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3326 [2020-09-25 04:36:23,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:23,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:23,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:36:23,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 04:36:23,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 04:36:23,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:23,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:36:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:23,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:23,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:23,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:36:23,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:23,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:23,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:23,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:23,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:23,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:23,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:23,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:23,208 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:36:23,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231214837] [2020-09-25 04:36:23,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:36:23,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 04:36:23,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355117509] [2020-09-25 04:36:23,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:36:23,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:36:23,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:36:23,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:36:23,211 INFO L87 Difference]: Start difference. First operand 157 states and 164 transitions. Second operand 10 states. [2020-09-25 04:36:23,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:36:23,846 INFO L93 Difference]: Finished difference Result 170 states and 177 transitions. [2020-09-25 04:36:23,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:36:23,846 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-09-25 04:36:23,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:36:23,847 INFO L225 Difference]: With dead ends: 170 [2020-09-25 04:36:23,848 INFO L226 Difference]: Without dead ends: 168 [2020-09-25 04:36:23,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2020-09-25 04:36:23,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-09-25 04:36:23,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 117. [2020-09-25 04:36:23,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-09-25 04:36:23,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 121 transitions. [2020-09-25 04:36:23,854 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 121 transitions. Word has length 81 [2020-09-25 04:36:23,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:36:23,855 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 121 transitions. [2020-09-25 04:36:23,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:36:23,855 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 121 transitions. [2020-09-25 04:36:23,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 04:36:23,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:36:23,856 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:36:23,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-09-25 04:36:23,856 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:36:23,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:36:23,857 INFO L82 PathProgramCache]: Analyzing trace with hash 2074971392, now seen corresponding path program 1 times [2020-09-25 04:36:23,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:36:23,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902842211] [2020-09-25 04:36:23,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:36:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:23,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking...