/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=DEEPEST --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-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:10:23,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:10:23,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:10:23,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:10:23,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:10:23,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:10:23,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:10:23,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:10:23,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:10:23,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:10:23,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:10:23,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:10:23,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:10:23,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:10:23,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:10:23,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:10:23,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:10:23,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:10:23,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:10:23,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:10:23,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:10:23,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:10:23,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:10:23,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:10:23,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:10:23,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:10:23,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:10:23,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:10:23,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:10:23,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:10:23,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:10:23,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:10:23,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:10:23,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:10:23,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:10:23,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:10:23,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:10:23,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:10:23,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:10:23,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:10:23,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:10:23,991 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 01:10:24,057 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:10:24,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:10:24,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:10:24,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:10:24,060 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:10:24,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:10:24,061 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:10:24,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:10:24,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:10:24,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:10:24,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:10:24,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:10:24,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:10:24,063 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:10:24,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:10:24,063 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:10:24,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:10:24,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:10:24,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:10:24,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:10:24,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:10:24,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:10:24,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:10:24,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:10:24,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:10:24,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:10:24,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:10:24,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:10:24,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:10:24,067 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 01:10:24,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:10:24,588 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:10:24,593 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:10:24,596 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:10:24,597 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:10:24,598 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 01:10:24,698 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/69a02f7d8/a8a6cf5c7b7047fcbd52791f51c3fd16/FLAG95d3f5409 [2020-09-25 01:10:25,325 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:10:25,326 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 01:10:25,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/69a02f7d8/a8a6cf5c7b7047fcbd52791f51c3fd16/FLAG95d3f5409 [2020-09-25 01:10:25,653 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/69a02f7d8/a8a6cf5c7b7047fcbd52791f51c3fd16 [2020-09-25 01:10:25,669 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:10:25,678 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:10:25,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:10:25,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:10:25,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:10:25,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:25" (1/1) ... [2020-09-25 01:10:25,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f84b4d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:25, skipping insertion in model container [2020-09-25 01:10:25,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:25" (1/1) ... [2020-09-25 01:10:25,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:10:25,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:10:26,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:10:26,023 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:10:26,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:10:26,169 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:10:26,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:26 WrapperNode [2020-09-25 01:10:26,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:10:26,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:10:26,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:10:26,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:10:26,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:26" (1/1) ... [2020-09-25 01:10:26,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:26" (1/1) ... [2020-09-25 01:10:26,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:26" (1/1) ... [2020-09-25 01:10:26,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:26" (1/1) ... [2020-09-25 01:10:26,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:26" (1/1) ... [2020-09-25 01:10:26,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:26" (1/1) ... [2020-09-25 01:10:26,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:26" (1/1) ... [2020-09-25 01:10:26,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:10:26,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:10:26,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:10:26,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:10:26,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:26" (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 01:10:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:10:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:10:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 01:10:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:10:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:10:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 01:10:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 01:10:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 01:10:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:10:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:10:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:10:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:10:26,988 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:10:26,989 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 01:10:26,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:26 BoogieIcfgContainer [2020-09-25 01:10:26,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:10:26,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:10:26,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:10:27,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:10:27,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:10:25" (1/3) ... [2020-09-25 01:10:27,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69dfe662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:27, skipping insertion in model container [2020-09-25 01:10:27,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:26" (2/3) ... [2020-09-25 01:10:27,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69dfe662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:27, skipping insertion in model container [2020-09-25 01:10:27,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:26" (3/3) ... [2020-09-25 01:10:27,007 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 01:10:27,019 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:10:27,030 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-09-25 01:10:27,054 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-09-25 01:10:27,091 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:10:27,091 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:10:27,092 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:10:27,092 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:10:27,092 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:10:27,092 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:10:27,093 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:10:27,093 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:10:27,127 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-09-25 01:10:27,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 01:10:27,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:27,139 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] [2020-09-25 01:10:27,140 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 01:10:27,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:27,149 INFO L82 PathProgramCache]: Analyzing trace with hash -2016263875, now seen corresponding path program 1 times [2020-09-25 01:10:27,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:27,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592544426] [2020-09-25 01:10:27,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:27,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:27,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:27,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 01:10:27,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:27,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-09-25 01:10:27,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:27,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:10:27,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 01:10:27,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:10:27,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:10:27,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:27,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:27,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:27,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:10:27,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:27,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:10:27,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:27,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:27,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:27,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:27,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:27,839 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 01:10:27,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592544426] [2020-09-25 01:10:27,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:27,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 01:10:27,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738906065] [2020-09-25 01:10:27,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 01:10:27,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:27,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 01:10:27,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:10:27,873 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 7 states. [2020-09-25 01:10:28,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:28,718 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2020-09-25 01:10:28,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 01:10:28,720 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-25 01:10:28,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:28,737 INFO L225 Difference]: With dead ends: 290 [2020-09-25 01:10:28,737 INFO L226 Difference]: Without dead ends: 239 [2020-09-25 01:10:28,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-09-25 01:10:28,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-09-25 01:10:28,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 187. [2020-09-25 01:10:28,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-25 01:10:28,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 190 transitions. [2020-09-25 01:10:28,828 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 190 transitions. Word has length 38 [2020-09-25 01:10:28,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:28,829 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 190 transitions. [2020-09-25 01:10:28,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 01:10:28,829 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 190 transitions. [2020-09-25 01:10:28,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 01:10:28,831 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:28,831 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 01:10:28,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:10:28,832 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 01:10:28,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:28,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1105206656, now seen corresponding path program 1 times [2020-09-25 01:10:28,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:28,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641048108] [2020-09-25 01:10:28,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:28,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:29,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:29,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 01:10:29,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:29,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-25 01:10:29,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:29,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:10:29,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 01:10:29,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:10:29,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:29,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:29,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:29,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:29,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:10:29,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:29,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:10:29,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:29,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:29,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:29,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:29,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:29,168 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 01:10:29,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641048108] [2020-09-25 01:10:29,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:29,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:10:29,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395032682] [2020-09-25 01:10:29,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:10:29,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:29,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:10:29,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:10:29,172 INFO L87 Difference]: Start difference. First operand 187 states and 190 transitions. Second operand 8 states. [2020-09-25 01:10:29,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:29,428 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2020-09-25 01:10:29,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 01:10:29,429 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-25 01:10:29,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:29,432 INFO L225 Difference]: With dead ends: 187 [2020-09-25 01:10:29,432 INFO L226 Difference]: Without dead ends: 185 [2020-09-25 01:10:29,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 01:10:29,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-25 01:10:29,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-09-25 01:10:29,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-25 01:10:29,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 188 transitions. [2020-09-25 01:10:29,448 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 188 transitions. Word has length 43 [2020-09-25 01:10:29,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:29,448 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 188 transitions. [2020-09-25 01:10:29,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:10:29,449 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 188 transitions. [2020-09-25 01:10:29,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 01:10:29,450 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:29,451 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 01:10:29,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:10:29,452 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 01:10:29,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:29,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1193283001, now seen corresponding path program 1 times [2020-09-25 01:10:29,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:29,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145158655] [2020-09-25 01:10:29,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:29,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:29,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:29,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 01:10:29,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:29,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 01:10:29,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:10:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 01:10:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 01:10:29,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:29,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:29,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:29,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:29,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:10:29,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:29,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:10:29,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:29,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:29,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:29,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:29,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:29,713 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 01:10:29,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145158655] [2020-09-25 01:10:29,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:29,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 01:10:29,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217609233] [2020-09-25 01:10:29,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 01:10:29,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:29,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 01:10:29,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:10:29,716 INFO L87 Difference]: Start difference. First operand 185 states and 188 transitions. Second operand 7 states. [2020-09-25 01:10:30,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:30,302 INFO L93 Difference]: Finished difference Result 237 states and 242 transitions. [2020-09-25 01:10:30,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 01:10:30,303 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 01:10:30,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:30,305 INFO L225 Difference]: With dead ends: 237 [2020-09-25 01:10:30,306 INFO L226 Difference]: Without dead ends: 235 [2020-09-25 01:10:30,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 01:10:30,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-09-25 01:10:30,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 183. [2020-09-25 01:10:30,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-25 01:10:30,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 186 transitions. [2020-09-25 01:10:30,319 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 186 transitions. Word has length 53 [2020-09-25 01:10:30,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:30,320 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 186 transitions. [2020-09-25 01:10:30,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 01:10:30,320 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 186 transitions. [2020-09-25 01:10:30,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 01:10:30,322 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:30,322 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 01:10:30,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:10:30,322 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 01:10:30,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:30,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1236242579, now seen corresponding path program 1 times [2020-09-25 01:10:30,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:30,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889189687] [2020-09-25 01:10:30,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:30,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:30,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:30,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:30,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 01:10:30,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:10:30,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-09-25 01:10:30,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:30,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:10:30,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 01:10:30,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 01:10:30,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:10:30,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:30,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:30,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:30,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:10:30,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:30,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:10:30,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:30,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:30,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:30,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:30,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:30,895 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 01:10:30,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889189687] [2020-09-25 01:10:30,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:30,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:10:30,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616747361] [2020-09-25 01:10:30,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:10:30,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:30,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:10:30,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:10:30,898 INFO L87 Difference]: Start difference. First operand 183 states and 186 transitions. Second operand 8 states. [2020-09-25 01:10:31,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:31,218 INFO L93 Difference]: Finished difference Result 183 states and 186 transitions. [2020-09-25 01:10:31,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 01:10:31,219 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-09-25 01:10:31,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:31,220 INFO L225 Difference]: With dead ends: 183 [2020-09-25 01:10:31,220 INFO L226 Difference]: Without dead ends: 181 [2020-09-25 01:10:31,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-09-25 01:10:31,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-25 01:10:31,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2020-09-25 01:10:31,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-25 01:10:31,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 184 transitions. [2020-09-25 01:10:31,247 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 184 transitions. Word has length 58 [2020-09-25 01:10:31,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:31,248 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 184 transitions. [2020-09-25 01:10:31,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:10:31,251 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 184 transitions. [2020-09-25 01:10:31,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 01:10:31,255 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:31,255 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] [2020-09-25 01:10:31,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:10:31,256 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 01:10:31,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:31,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1703094031, now seen corresponding path program 1 times [2020-09-25 01:10:31,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:31,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109164546] [2020-09-25 01:10:31,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:31,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:31,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:31,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:31,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:31,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 01:10:31,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:10:31,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-09-25 01:10:31,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:31,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:10:31,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 01:10:31,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:10:31,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:31,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:31,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:31,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:31,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:10:31,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:31,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:10:31,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:31,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:31,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:31,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:31,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:31,804 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 01:10:31,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109164546] [2020-09-25 01:10:31,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:31,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:10:31,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220960062] [2020-09-25 01:10:31,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:10:31,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:31,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:10:31,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:10:31,808 INFO L87 Difference]: Start difference. First operand 181 states and 184 transitions. Second operand 6 states. [2020-09-25 01:10:32,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:32,532 INFO L93 Difference]: Finished difference Result 284 states and 288 transitions. [2020-09-25 01:10:32,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:10:32,533 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-09-25 01:10:32,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:32,535 INFO L225 Difference]: With dead ends: 284 [2020-09-25 01:10:32,535 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 01:10:32,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:10:32,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 01:10:32,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 186. [2020-09-25 01:10:32,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-09-25 01:10:32,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 189 transitions. [2020-09-25 01:10:32,546 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 189 transitions. Word has length 64 [2020-09-25 01:10:32,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:32,547 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 189 transitions. [2020-09-25 01:10:32,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:10:32,547 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 189 transitions. [2020-09-25 01:10:32,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 01:10:32,549 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:32,549 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] [2020-09-25 01:10:32,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:10:32,549 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 01:10:32,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:32,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1179531825, now seen corresponding path program 1 times [2020-09-25 01:10:32,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:32,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899498985] [2020-09-25 01:10:32,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:32,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:32,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:33,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:33,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 01:10:33,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:10:33,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 443 [2020-09-25 01:10:33,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:33,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:10:33,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 01:10:33,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 01:10:33,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:33,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:33,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:33,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:33,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:10:33,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:33,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:10:33,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:33,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:33,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:33,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:33,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:33,137 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 01:10:33,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899498985] [2020-09-25 01:10:33,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:33,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:10:33,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468878852] [2020-09-25 01:10:33,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:10:33,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:33,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:10:33,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:10:33,141 INFO L87 Difference]: Start difference. First operand 186 states and 189 transitions. Second operand 8 states. [2020-09-25 01:10:34,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:34,667 INFO L93 Difference]: Finished difference Result 478 states and 487 transitions. [2020-09-25 01:10:34,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:10:34,669 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-09-25 01:10:34,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:34,673 INFO L225 Difference]: With dead ends: 478 [2020-09-25 01:10:34,673 INFO L226 Difference]: Without dead ends: 476 [2020-09-25 01:10:34,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2020-09-25 01:10:34,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-25 01:10:34,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 197. [2020-09-25 01:10:34,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-25 01:10:34,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions. [2020-09-25 01:10:34,689 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69 [2020-09-25 01:10:34,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:34,690 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 202 transitions. [2020-09-25 01:10:34,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:10:34,697 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2020-09-25 01:10:34,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 01:10:34,698 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:34,699 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] [2020-09-25 01:10:34,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 01:10:34,699 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 01:10:34,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:34,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1904710263, now seen corresponding path program 1 times [2020-09-25 01:10:34,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:34,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1858423727] [2020-09-25 01:10:34,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:34,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:34,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:35,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:35,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 01:10:35,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:10:35,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446 [2020-09-25 01:10:35,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:35,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:10:35,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 01:10:35,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 01:10:35,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:35,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:35,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:35,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:35,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:10:35,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:35,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:10:35,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:35,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:35,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:35,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:35,265 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 01:10:35,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1858423727] [2020-09-25 01:10:35,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:35,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:10:35,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705351898] [2020-09-25 01:10:35,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:10:35,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:35,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:10:35,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:10:35,270 INFO L87 Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 8 states. [2020-09-25 01:10:36,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:36,495 INFO L93 Difference]: Finished difference Result 337 states and 343 transitions. [2020-09-25 01:10:36,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 01:10:36,495 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-09-25 01:10:36,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:36,498 INFO L225 Difference]: With dead ends: 337 [2020-09-25 01:10:36,499 INFO L226 Difference]: Without dead ends: 335 [2020-09-25 01:10:36,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-09-25 01:10:36,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-25 01:10:36,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 197. [2020-09-25 01:10:36,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-25 01:10:36,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions. [2020-09-25 01:10:36,515 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69 [2020-09-25 01:10:36,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:36,515 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 202 transitions. [2020-09-25 01:10:36,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:10:36,516 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2020-09-25 01:10:36,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 01:10:36,517 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:36,517 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] [2020-09-25 01:10:36,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 01:10:36,518 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 01:10:36,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:36,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1472635957, now seen corresponding path program 1 times [2020-09-25 01:10:36,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:36,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719621547] [2020-09-25 01:10:36,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:36,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:36,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:36,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:36,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:36,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:40,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:40,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 01:10:40,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:10:40,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3638 [2020-09-25 01:10:40,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:10:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 01:10:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 01:10:40,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:40,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:40,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:40,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:40,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:10:40,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:40,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:10:40,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:40,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:40,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:40,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:40,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:40,305 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 01:10:40,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719621547] [2020-09-25 01:10:40,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:40,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:10:40,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314503683] [2020-09-25 01:10:40,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:10:40,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:40,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:10:40,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:10:40,309 INFO L87 Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 8 states. [2020-09-25 01:10:40,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:40,815 INFO L93 Difference]: Finished difference Result 197 states and 202 transitions. [2020-09-25 01:10:40,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 01:10:40,816 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-09-25 01:10:40,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:40,817 INFO L225 Difference]: With dead ends: 197 [2020-09-25 01:10:40,817 INFO L226 Difference]: Without dead ends: 195 [2020-09-25 01:10:40,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-25 01:10:40,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-09-25 01:10:40,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-09-25 01:10:40,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-25 01:10:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 200 transitions. [2020-09-25 01:10:40,827 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 200 transitions. Word has length 69 [2020-09-25 01:10:40,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:40,828 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 200 transitions. [2020-09-25 01:10:40,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:10:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 200 transitions. [2020-09-25 01:10:40,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 01:10:40,835 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:40,836 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] [2020-09-25 01:10:40,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 01:10:40,837 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 01:10:40,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:40,837 INFO L82 PathProgramCache]: Analyzing trace with hash 645172388, now seen corresponding path program 1 times [2020-09-25 01:10:40,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:40,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097858118] [2020-09-25 01:10:40,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:40,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:40,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:40,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:42,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:42,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 01:10:42,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:10:42,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1606 [2020-09-25 01:10:42,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:42,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:10:42,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 01:10:42,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 01:10:42,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:42,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:42,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:42,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:42,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:10:42,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:42,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:10:42,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:42,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:42,575 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 01:10:42,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097858118] [2020-09-25 01:10:42,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:42,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:10:42,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330099199] [2020-09-25 01:10:42,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:10:42,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:42,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:10:42,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:10:42,579 INFO L87 Difference]: Start difference. First operand 195 states and 200 transitions. Second operand 8 states. [2020-09-25 01:10:43,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:43,186 INFO L93 Difference]: Finished difference Result 297 states and 303 transitions. [2020-09-25 01:10:43,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 01:10:43,187 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-09-25 01:10:43,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:43,189 INFO L225 Difference]: With dead ends: 297 [2020-09-25 01:10:43,189 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 01:10:43,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-09-25 01:10:43,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 01:10:43,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 193. [2020-09-25 01:10:43,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-25 01:10:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 198 transitions. [2020-09-25 01:10:43,199 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 198 transitions. Word has length 74 [2020-09-25 01:10:43,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:43,200 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 198 transitions. [2020-09-25 01:10:43,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:10:43,200 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 198 transitions. [2020-09-25 01:10:43,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 01:10:43,201 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:43,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:43,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 01:10:43,202 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 01:10:43,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:43,202 INFO L82 PathProgramCache]: Analyzing trace with hash -2127372300, now seen corresponding path program 1 times [2020-09-25 01:10:43,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:43,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121286092] [2020-09-25 01:10:43,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:43,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:43,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:43,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:43,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:44,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:44,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 01:10:44,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:10:44,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1769 [2020-09-25 01:10:44,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:44,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 01:10:44,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 01:10:44,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 01:10:44,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:45,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:45,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:45,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:45,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:10:45,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:45,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:10:45,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:45,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:45,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:45,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:45,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:45,077 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 01:10:45,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121286092] [2020-09-25 01:10:45,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:45,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:10:45,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19015236] [2020-09-25 01:10:45,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:10:45,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:45,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:10:45,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:10:45,080 INFO L87 Difference]: Start difference. First operand 193 states and 198 transitions. Second operand 9 states. [2020-09-25 01:10:45,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:45,515 INFO L93 Difference]: Finished difference Result 198 states and 203 transitions. [2020-09-25 01:10:45,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 01:10:45,515 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-09-25 01:10:45,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:45,517 INFO L225 Difference]: With dead ends: 198 [2020-09-25 01:10:45,517 INFO L226 Difference]: Without dead ends: 196 [2020-09-25 01:10:45,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2020-09-25 01:10:45,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-09-25 01:10:45,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 191. [2020-09-25 01:10:45,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-25 01:10:45,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 196 transitions. [2020-09-25 01:10:45,526 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 196 transitions. Word has length 75 [2020-09-25 01:10:45,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:45,526 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 196 transitions. [2020-09-25 01:10:45,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:10:45,527 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 196 transitions. [2020-09-25 01:10:45,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 01:10:45,527 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:45,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:45,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 01:10:45,528 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 01:10:45,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:45,528 INFO L82 PathProgramCache]: Analyzing trace with hash 2079623045, now seen corresponding path program 1 times [2020-09-25 01:10:45,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:45,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [704189013] [2020-09-25 01:10:45,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:45,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:45,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:45,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:45,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:45,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:45,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:47,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:50,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:50,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 01:10:50,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 01:10:50,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 01:10:50,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:50,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:10:50,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 01:10:50,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 01:10:50,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:50,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:50,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:50,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:50,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:10:50,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:50,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:10:50,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:50,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:50,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:50,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:50,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:50,649 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 01:10:50,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [704189013] [2020-09-25 01:10:50,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:50,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:10:50,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173072776] [2020-09-25 01:10:50,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:10:50,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:50,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:10:50,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:10:50,651 INFO L87 Difference]: Start difference. First operand 191 states and 196 transitions. Second operand 8 states. [2020-09-25 01:10:51,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:51,262 INFO L93 Difference]: Finished difference Result 191 states and 196 transitions. [2020-09-25 01:10:51,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 01:10:51,263 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-09-25 01:10:51,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:51,265 INFO L225 Difference]: With dead ends: 191 [2020-09-25 01:10:51,265 INFO L226 Difference]: Without dead ends: 189 [2020-09-25 01:10:51,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-25 01:10:51,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-09-25 01:10:51,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2020-09-25 01:10:51,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-25 01:10:51,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 194 transitions. [2020-09-25 01:10:51,280 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 194 transitions. Word has length 80 [2020-09-25 01:10:51,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:51,281 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 194 transitions. [2020-09-25 01:10:51,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:10:51,281 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 194 transitions. [2020-09-25 01:10:51,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 01:10:51,283 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:51,283 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:51,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 01:10:51,284 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 01:10:51,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:51,285 INFO L82 PathProgramCache]: Analyzing trace with hash 462594596, now seen corresponding path program 1 times [2020-09-25 01:10:51,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:51,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [170724510] [2020-09-25 01:10:51,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:51,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:51,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:51,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:53,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:53,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 01:10:53,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:10:53,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2335 [2020-09-25 01:10:53,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:53,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 01:10:53,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 01:10:53,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 01:10:53,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:53,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:53,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:53,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:53,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:10:53,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:53,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:10:53,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:53,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:53,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:53,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:53,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:53,829 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:10:53,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [170724510] [2020-09-25 01:10:53,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 01:10:53,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 01:10:53,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943067199] [2020-09-25 01:10:53,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:10:53,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:53,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:10:53,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:10:53,832 INFO L87 Difference]: Start difference. First operand 189 states and 194 transitions. Second operand 10 states. [2020-09-25 01:10:55,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:55,008 INFO L93 Difference]: Finished difference Result 413 states and 422 transitions. [2020-09-25 01:10:55,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:10:55,009 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-09-25 01:10:55,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:55,012 INFO L225 Difference]: With dead ends: 413 [2020-09-25 01:10:55,012 INFO L226 Difference]: Without dead ends: 411 [2020-09-25 01:10:55,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-09-25 01:10:55,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-09-25 01:10:55,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 182. [2020-09-25 01:10:55,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-25 01:10:55,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 187 transitions. [2020-09-25 01:10:55,023 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 187 transitions. Word has length 86 [2020-09-25 01:10:55,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:55,024 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 187 transitions. [2020-09-25 01:10:55,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:10:55,024 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 187 transitions. [2020-09-25 01:10:55,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 01:10:55,025 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:55,025 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:55,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 01:10:55,026 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 01:10:55,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:55,026 INFO L82 PathProgramCache]: Analyzing trace with hash -748130612, now seen corresponding path program 1 times [2020-09-25 01:10:55,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:55,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267220699] [2020-09-25 01:10:55,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:55,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:55,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:55,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:57,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:57,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 01:10:57,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:10:57,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2308 [2020-09-25 01:10:57,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:57,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 01:10:57,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 01:10:57,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 01:10:57,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:57,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:57,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:57,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:57,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:10:57,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:57,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:10:57,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:57,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:57,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:57,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:57,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:10:57,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267220699] [2020-09-25 01:10:57,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 01:10:57,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 01:10:57,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903522949] [2020-09-25 01:10:57,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:10:57,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:57,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:10:57,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:10:57,514 INFO L87 Difference]: Start difference. First operand 182 states and 187 transitions. Second operand 10 states. [2020-09-25 01:10:58,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:58,408 INFO L93 Difference]: Finished difference Result 288 states and 294 transitions. [2020-09-25 01:10:58,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:10:58,409 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-09-25 01:10:58,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:58,410 INFO L225 Difference]: With dead ends: 288 [2020-09-25 01:10:58,411 INFO L226 Difference]: Without dead ends: 286 [2020-09-25 01:10:58,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 01:10:58,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-25 01:10:58,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 169. [2020-09-25 01:10:58,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-25 01:10:58,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 172 transitions. [2020-09-25 01:10:58,418 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 172 transitions. Word has length 86 [2020-09-25 01:10:58,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:58,419 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 172 transitions. [2020-09-25 01:10:58,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:10:58,419 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 172 transitions. [2020-09-25 01:10:58,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-25 01:10:58,420 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:58,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:58,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 01:10:58,420 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 01:10:58,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:58,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1581381328, now seen corresponding path program 1 times [2020-09-25 01:10:58,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:58,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109085919] [2020-09-25 01:10:58,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:58,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:58,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:58,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:58,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:58,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:58,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:03,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:11:03,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 01:11:03,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 01:11:03,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 01:11:03,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:11:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 01:11:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 01:11:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 01:11:03,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:11:03,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:11:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:11:03,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:03,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:11:03,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:11:03,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:11:03,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:11:03,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:11:03,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:11:03,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:11:03,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:11:03,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:11:03,617 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 01:11:03,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109085919] [2020-09-25 01:11:03,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:11:03,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:11:03,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482468282] [2020-09-25 01:11:03,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:11:03,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:11:03,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:11:03,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:11:03,620 INFO L87 Difference]: Start difference. First operand 169 states and 172 transitions. Second operand 9 states. [2020-09-25 01:11:04,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:11:04,570 INFO L93 Difference]: Finished difference Result 185 states and 188 transitions. [2020-09-25 01:11:04,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:11:04,570 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-09-25 01:11:04,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:11:04,572 INFO L225 Difference]: With dead ends: 185 [2020-09-25 01:11:04,572 INFO L226 Difference]: Without dead ends: 183 [2020-09-25 01:11:04,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-09-25 01:11:04,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-09-25 01:11:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2020-09-25 01:11:04,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-25 01:11:04,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 170 transitions. [2020-09-25 01:11:04,583 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 170 transitions. Word has length 94 [2020-09-25 01:11:04,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:11:04,583 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 170 transitions. [2020-09-25 01:11:04,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:11:04,583 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 170 transitions. [2020-09-25 01:11:04,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 01:11:04,584 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:11:04,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:11:04,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 01:11:04,585 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 01:11:04,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:11:04,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1952981262, now seen corresponding path program 1 times [2020-09-25 01:11:04,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:11:04,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [535095202] [2020-09-25 01:11:04,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:11:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:11:04,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:04,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:04,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:04,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:04,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:04,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:04,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:06,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:09,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:11:09,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 01:11:09,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 01:11:09,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 01:11:09,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:11:09,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 01:11:09,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 01:11:09,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 01:11:09,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:11:09,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:11:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:11:09,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:09,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:11:09,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:11:09,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:11:09,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:11:09,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:11:09,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:11:09,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:11:09,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:11:09,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:11:09,713 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 01:11:09,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [535095202] [2020-09-25 01:11:09,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:11:09,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:11:09,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207104356] [2020-09-25 01:11:09,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:11:09,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:11:09,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:11:09,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:11:09,715 INFO L87 Difference]: Start difference. First operand 167 states and 170 transitions. Second operand 8 states. [2020-09-25 01:11:10,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:11:10,345 INFO L93 Difference]: Finished difference Result 167 states and 170 transitions. [2020-09-25 01:11:10,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 01:11:10,346 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2020-09-25 01:11:10,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:11:10,347 INFO L225 Difference]: With dead ends: 167 [2020-09-25 01:11:10,348 INFO L226 Difference]: Without dead ends: 165 [2020-09-25 01:11:10,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-25 01:11:10,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-25 01:11:10,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-09-25 01:11:10,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 01:11:10,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 168 transitions. [2020-09-25 01:11:10,355 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 168 transitions. Word has length 99 [2020-09-25 01:11:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:11:10,355 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 168 transitions. [2020-09-25 01:11:10,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:11:10,355 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 168 transitions. [2020-09-25 01:11:10,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-25 01:11:10,356 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:11:10,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:11:10,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 01:11:10,357 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 01:11:10,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:11:10,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1977584034, now seen corresponding path program 1 times [2020-09-25 01:11:10,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:11:10,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709585738] [2020-09-25 01:11:10,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:11:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:11:10,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:10,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:10,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:10,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:10,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:10,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:10,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:11,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:15,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:11:15,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-09-25 01:11:15,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 01:11:15,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 01:11:15,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:11:15,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:11:15,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-25 01:11:15,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 01:11:15,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0