/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_7.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:22:11,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:22:11,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:22:11,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:22:11,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:22:11,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:22:11,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:22:11,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:22:11,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:22:11,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:22:11,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:22:11,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:22:11,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:22:11,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:22:11,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:22:11,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:22:11,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:22:11,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:22:11,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:22:11,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:22:11,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:22:11,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:22:11,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:22:11,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:22:11,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:22:11,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:22:11,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:22:11,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:22:11,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:22:11,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:22:11,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:22:11,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:22:11,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:22:11,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:22:11,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:22:11,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:22:11,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:22:11,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:22:11,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:22:11,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:22:11,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:22:11,076 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:22:11,103 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:22:11,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:22:11,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:22:11,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:22:11,105 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:22:11,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:22:11,106 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:22:11,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:22:11,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:22:11,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:22:11,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:22:11,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:22:11,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:22:11,107 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:22:11,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:22:11,108 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:22:11,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:22:11,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:22:11,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:22:11,108 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:22:11,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:22:11,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:22:11,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:22:11,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:22:11,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:22:11,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:22:11,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:22:11,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:22:11,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:22:11,111 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:22:11,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:22:11,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:22:11,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:22:11,687 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:22:11,687 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:22:11,688 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_7.c [2020-09-25 04:22:11,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2fb827ce/9d84f871349d47f185ef9ccb8754e15d/FLAG634ed3613 [2020-09-25 04:22:12,331 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:22:12,332 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_7.c [2020-09-25 04:22:12,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2fb827ce/9d84f871349d47f185ef9ccb8754e15d/FLAG634ed3613 [2020-09-25 04:22:12,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2fb827ce/9d84f871349d47f185ef9ccb8754e15d [2020-09-25 04:22:12,695 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:22:12,701 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:22:12,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:22:12,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:22:12,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:22:12,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:22:12" (1/1) ... [2020-09-25 04:22:12,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd8ad23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:12, skipping insertion in model container [2020-09-25 04:22:12,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:22:12" (1/1) ... [2020-09-25 04:22:12,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:22:12,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:22:12,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:22:12,986 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:22:13,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:22:13,033 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:22:13,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:13 WrapperNode [2020-09-25 04:22:13,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:22:13,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:22:13,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:22:13,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:22:13,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:13" (1/1) ... [2020-09-25 04:22:13,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:13" (1/1) ... [2020-09-25 04:22:13,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:13" (1/1) ... [2020-09-25 04:22:13,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:13" (1/1) ... [2020-09-25 04:22:13,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:13" (1/1) ... [2020-09-25 04:22:13,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:13" (1/1) ... [2020-09-25 04:22:13,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:13" (1/1) ... [2020-09-25 04:22:13,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:22:13,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:22:13,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:22:13,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:22:13,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:22:13,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:22:13,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:22:13,237 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:22:13,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:22:13,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:22:13,238 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:22:13,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:22:13,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:22:13,652 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:22:13,653 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 04:22:13,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:22:13 BoogieIcfgContainer [2020-09-25 04:22:13,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:22:13,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:22:13,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:22:13,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:22:13,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:22:12" (1/3) ... [2020-09-25 04:22:13,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d87b6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:22:13, skipping insertion in model container [2020-09-25 04:22:13,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:13" (2/3) ... [2020-09-25 04:22:13,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d87b6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:22:13, skipping insertion in model container [2020-09-25 04:22:13,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:22:13" (3/3) ... [2020-09-25 04:22:13,668 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_7.c [2020-09-25 04:22:13,680 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:22:13,690 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:22:13,711 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:22:13,741 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:22:13,741 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:22:13,741 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:22:13,742 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:22:13,742 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:22:13,742 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:22:13,742 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:22:13,742 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:22:13,764 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-09-25 04:22:13,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 04:22:13,773 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:13,775 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] [2020-09-25 04:22:13,775 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:13,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:13,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1826051656, now seen corresponding path program 1 times [2020-09-25 04:22:13,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:13,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604393647] [2020-09-25 04:22:13,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:13,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 04:22:14,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-25 04:22:14,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:14,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 04:22:14,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:22:14,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:22:14,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:14,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:22:14,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:14,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:14,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:14,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:14,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604393647] [2020-09-25 04:22:14,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:14,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:14,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19192874] [2020-09-25 04:22:14,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:14,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:14,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:14,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:14,273 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 3 states. [2020-09-25 04:22:14,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:14,348 INFO L93 Difference]: Finished difference Result 191 states and 260 transitions. [2020-09-25 04:22:14,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:14,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-09-25 04:22:14,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:14,367 INFO L225 Difference]: With dead ends: 191 [2020-09-25 04:22:14,367 INFO L226 Difference]: Without dead ends: 128 [2020-09-25 04:22:14,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:14,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-25 04:22:14,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2020-09-25 04:22:14,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-25 04:22:14,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 164 transitions. [2020-09-25 04:22:14,436 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 164 transitions. Word has length 55 [2020-09-25 04:22:14,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:14,438 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 164 transitions. [2020-09-25 04:22:14,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:14,438 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 164 transitions. [2020-09-25 04:22:14,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 04:22:14,441 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:14,441 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] [2020-09-25 04:22:14,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:22:14,442 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:14,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:14,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1965492109, now seen corresponding path program 1 times [2020-09-25 04:22:14,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:14,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580124232] [2020-09-25 04:22:14,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 04:22:14,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 04:22:14,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:14,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 04:22:14,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:14,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:14,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:14,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:14,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:14,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:14,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,617 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 04:22:14,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580124232] [2020-09-25 04:22:14,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:14,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:14,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442828827] [2020-09-25 04:22:14,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:14,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:14,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:14,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:14,622 INFO L87 Difference]: Start difference. First operand 126 states and 164 transitions. Second operand 3 states. [2020-09-25 04:22:14,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:14,647 INFO L93 Difference]: Finished difference Result 154 states and 202 transitions. [2020-09-25 04:22:14,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:14,648 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-09-25 04:22:14,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:14,650 INFO L225 Difference]: With dead ends: 154 [2020-09-25 04:22:14,651 INFO L226 Difference]: Without dead ends: 152 [2020-09-25 04:22:14,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:14,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-09-25 04:22:14,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 126. [2020-09-25 04:22:14,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-25 04:22:14,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 163 transitions. [2020-09-25 04:22:14,666 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 163 transitions. Word has length 56 [2020-09-25 04:22:14,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:14,666 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 163 transitions. [2020-09-25 04:22:14,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:14,667 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 163 transitions. [2020-09-25 04:22:14,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 04:22:14,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:14,669 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] [2020-09-25 04:22:14,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:22:14,670 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:14,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:14,671 INFO L82 PathProgramCache]: Analyzing trace with hash 773271458, now seen corresponding path program 1 times [2020-09-25 04:22:14,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:14,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686717479] [2020-09-25 04:22:14,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 04:22:14,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 04:22:14,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:14,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 04:22:14,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:22:14,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:14,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:14,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:14,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:14,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:14,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:14,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686717479] [2020-09-25 04:22:14,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:14,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:14,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676048911] [2020-09-25 04:22:14,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:14,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:14,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:14,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:14,892 INFO L87 Difference]: Start difference. First operand 126 states and 163 transitions. Second operand 3 states. [2020-09-25 04:22:14,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:14,917 INFO L93 Difference]: Finished difference Result 306 states and 415 transitions. [2020-09-25 04:22:14,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:14,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-09-25 04:22:14,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:14,921 INFO L225 Difference]: With dead ends: 306 [2020-09-25 04:22:14,921 INFO L226 Difference]: Without dead ends: 213 [2020-09-25 04:22:14,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:14,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-09-25 04:22:14,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 211. [2020-09-25 04:22:14,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-09-25 04:22:14,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 280 transitions. [2020-09-25 04:22:14,939 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 280 transitions. Word has length 56 [2020-09-25 04:22:14,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:14,939 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 280 transitions. [2020-09-25 04:22:14,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:14,940 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 280 transitions. [2020-09-25 04:22:14,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 04:22:14,942 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:14,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:14,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:22:14,943 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:14,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:14,943 INFO L82 PathProgramCache]: Analyzing trace with hash -610540190, now seen corresponding path program 1 times [2020-09-25 04:22:14,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:14,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287286305] [2020-09-25 04:22:14,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 04:22:15,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 04:22:15,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-25 04:22:15,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:15,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:15,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:15,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:15,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287286305] [2020-09-25 04:22:15,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:15,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:15,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282197472] [2020-09-25 04:22:15,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:15,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:15,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:15,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,051 INFO L87 Difference]: Start difference. First operand 211 states and 280 transitions. Second operand 3 states. [2020-09-25 04:22:15,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:15,081 INFO L93 Difference]: Finished difference Result 259 states and 346 transitions. [2020-09-25 04:22:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:15,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-09-25 04:22:15,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:15,084 INFO L225 Difference]: With dead ends: 259 [2020-09-25 04:22:15,084 INFO L226 Difference]: Without dead ends: 257 [2020-09-25 04:22:15,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-09-25 04:22:15,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 211. [2020-09-25 04:22:15,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-09-25 04:22:15,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 278 transitions. [2020-09-25 04:22:15,110 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 278 transitions. Word has length 57 [2020-09-25 04:22:15,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:15,111 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 278 transitions. [2020-09-25 04:22:15,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:15,111 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 278 transitions. [2020-09-25 04:22:15,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 04:22:15,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:15,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:15,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:22:15,118 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:15,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:15,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1798143236, now seen corresponding path program 1 times [2020-09-25 04:22:15,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:15,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331360937] [2020-09-25 04:22:15,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 04:22:15,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 04:22:15,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-25 04:22:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:22:15,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:15,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:15,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:15,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331360937] [2020-09-25 04:22:15,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:15,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:15,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117696304] [2020-09-25 04:22:15,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:15,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:15,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:15,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,282 INFO L87 Difference]: Start difference. First operand 211 states and 278 transitions. Second operand 3 states. [2020-09-25 04:22:15,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:15,310 INFO L93 Difference]: Finished difference Result 555 states and 752 transitions. [2020-09-25 04:22:15,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:15,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-09-25 04:22:15,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:15,314 INFO L225 Difference]: With dead ends: 555 [2020-09-25 04:22:15,314 INFO L226 Difference]: Without dead ends: 377 [2020-09-25 04:22:15,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-09-25 04:22:15,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 375. [2020-09-25 04:22:15,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-25 04:22:15,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 498 transitions. [2020-09-25 04:22:15,349 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 498 transitions. Word has length 57 [2020-09-25 04:22:15,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:15,351 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 498 transitions. [2020-09-25 04:22:15,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:15,351 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 498 transitions. [2020-09-25 04:22:15,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 04:22:15,355 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:15,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:15,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:22:15,356 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:15,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:15,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1136837537, now seen corresponding path program 1 times [2020-09-25 04:22:15,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:15,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [252999209] [2020-09-25 04:22:15,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:22:15,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 04:22:15,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 04:22:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:15,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:15,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:22:15,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:15,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [252999209] [2020-09-25 04:22:15,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:15,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:15,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93724090] [2020-09-25 04:22:15,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:15,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:15,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:15,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,472 INFO L87 Difference]: Start difference. First operand 375 states and 498 transitions. Second operand 3 states. [2020-09-25 04:22:15,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:15,501 INFO L93 Difference]: Finished difference Result 459 states and 612 transitions. [2020-09-25 04:22:15,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:15,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-09-25 04:22:15,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:15,505 INFO L225 Difference]: With dead ends: 459 [2020-09-25 04:22:15,505 INFO L226 Difference]: Without dead ends: 457 [2020-09-25 04:22:15,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-09-25 04:22:15,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 375. [2020-09-25 04:22:15,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-25 04:22:15,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 494 transitions. [2020-09-25 04:22:15,530 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 494 transitions. Word has length 58 [2020-09-25 04:22:15,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:15,532 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 494 transitions. [2020-09-25 04:22:15,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:15,533 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 494 transitions. [2020-09-25 04:22:15,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 04:22:15,535 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:15,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:15,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:22:15,536 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:15,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:15,538 INFO L82 PathProgramCache]: Analyzing trace with hash 92380246, now seen corresponding path program 1 times [2020-09-25 04:22:15,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:15,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948735002] [2020-09-25 04:22:15,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:22:15,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 04:22:15,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 04:22:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:22:15,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:15,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:15,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:15,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:15,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948735002] [2020-09-25 04:22:15,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:15,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:15,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274015944] [2020-09-25 04:22:15,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:15,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:15,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:15,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,654 INFO L87 Difference]: Start difference. First operand 375 states and 494 transitions. Second operand 3 states. [2020-09-25 04:22:15,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:15,680 INFO L93 Difference]: Finished difference Result 1035 states and 1384 transitions. [2020-09-25 04:22:15,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:15,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-09-25 04:22:15,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:15,685 INFO L225 Difference]: With dead ends: 1035 [2020-09-25 04:22:15,685 INFO L226 Difference]: Without dead ends: 693 [2020-09-25 04:22:15,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-09-25 04:22:15,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 691. [2020-09-25 04:22:15,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-09-25 04:22:15,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 906 transitions. [2020-09-25 04:22:15,711 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 906 transitions. Word has length 58 [2020-09-25 04:22:15,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:15,712 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 906 transitions. [2020-09-25 04:22:15,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:15,712 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 906 transitions. [2020-09-25 04:22:15,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 04:22:15,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:15,714 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] [2020-09-25 04:22:15,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:22:15,714 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:15,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:15,715 INFO L82 PathProgramCache]: Analyzing trace with hash -529027402, now seen corresponding path program 1 times [2020-09-25 04:22:15,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:15,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599041352] [2020-09-25 04:22:15,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 04:22:15,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 04:22:15,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 04:22:15,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:15,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:15,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:15,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:15,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1599041352] [2020-09-25 04:22:15,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:15,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:15,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725574289] [2020-09-25 04:22:15,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:15,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:15,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:15,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,803 INFO L87 Difference]: Start difference. First operand 691 states and 906 transitions. Second operand 3 states. [2020-09-25 04:22:15,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:15,829 INFO L93 Difference]: Finished difference Result 839 states and 1100 transitions. [2020-09-25 04:22:15,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:15,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2020-09-25 04:22:15,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:15,835 INFO L225 Difference]: With dead ends: 839 [2020-09-25 04:22:15,835 INFO L226 Difference]: Without dead ends: 837 [2020-09-25 04:22:15,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2020-09-25 04:22:15,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 691. [2020-09-25 04:22:15,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-09-25 04:22:15,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 898 transitions. [2020-09-25 04:22:15,870 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 898 transitions. Word has length 59 [2020-09-25 04:22:15,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:15,870 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 898 transitions. [2020-09-25 04:22:15,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:15,870 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 898 transitions. [2020-09-25 04:22:15,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 04:22:15,872 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:15,872 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] [2020-09-25 04:22:15,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:22:15,872 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:15,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:15,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1430933584, now seen corresponding path program 1 times [2020-09-25 04:22:15,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:15,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152844924] [2020-09-25 04:22:15,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 04:22:15,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 04:22:15,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 04:22:15,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:22:15,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:15,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:15,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:15,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:15,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [152844924] [2020-09-25 04:22:15,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:15,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:15,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741945612] [2020-09-25 04:22:15,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:15,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:15,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:15,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,953 INFO L87 Difference]: Start difference. First operand 691 states and 898 transitions. Second operand 3 states. [2020-09-25 04:22:15,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:15,983 INFO L93 Difference]: Finished difference Result 1959 states and 2564 transitions. [2020-09-25 04:22:15,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:15,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2020-09-25 04:22:15,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:15,989 INFO L225 Difference]: With dead ends: 1959 [2020-09-25 04:22:15,990 INFO L226 Difference]: Without dead ends: 1301 [2020-09-25 04:22:15,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2020-09-25 04:22:16,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1299. [2020-09-25 04:22:16,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1299 states. [2020-09-25 04:22:16,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1666 transitions. [2020-09-25 04:22:16,024 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1666 transitions. Word has length 59 [2020-09-25 04:22:16,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:16,024 INFO L479 AbstractCegarLoop]: Abstraction has 1299 states and 1666 transitions. [2020-09-25 04:22:16,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:16,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1666 transitions. [2020-09-25 04:22:16,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 04:22:16,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:16,026 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] [2020-09-25 04:22:16,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:22:16,027 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:16,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:16,027 INFO L82 PathProgramCache]: Analyzing trace with hash -631232587, now seen corresponding path program 1 times [2020-09-25 04:22:16,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:16,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443350210] [2020-09-25 04:22:16,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 04:22:16,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 04:22:16,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:16,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 04:22:16,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:16,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:16,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:16,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:16,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443350210] [2020-09-25 04:22:16,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:16,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:16,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389631998] [2020-09-25 04:22:16,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:16,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:16,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:16,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:16,106 INFO L87 Difference]: Start difference. First operand 1299 states and 1666 transitions. Second operand 3 states. [2020-09-25 04:22:16,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:16,135 INFO L93 Difference]: Finished difference Result 1559 states and 1988 transitions. [2020-09-25 04:22:16,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:16,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-09-25 04:22:16,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:16,144 INFO L225 Difference]: With dead ends: 1559 [2020-09-25 04:22:16,144 INFO L226 Difference]: Without dead ends: 1557 [2020-09-25 04:22:16,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:16,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2020-09-25 04:22:16,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1299. [2020-09-25 04:22:16,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1299 states. [2020-09-25 04:22:16,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1650 transitions. [2020-09-25 04:22:16,194 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1650 transitions. Word has length 60 [2020-09-25 04:22:16,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:16,194 INFO L479 AbstractCegarLoop]: Abstraction has 1299 states and 1650 transitions. [2020-09-25 04:22:16,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:16,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1650 transitions. [2020-09-25 04:22:16,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 04:22:16,196 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:16,196 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] [2020-09-25 04:22:16,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 04:22:16,197 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:16,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:16,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1409021686, now seen corresponding path program 1 times [2020-09-25 04:22:16,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:16,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747392771] [2020-09-25 04:22:16,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 04:22:16,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 04:22:16,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:16,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 04:22:16,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:22:16,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:16,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:16,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:16,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:16,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747392771] [2020-09-25 04:22:16,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:16,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:16,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843903146] [2020-09-25 04:22:16,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:16,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:16,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:16,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:16,283 INFO L87 Difference]: Start difference. First operand 1299 states and 1650 transitions. Second operand 3 states. [2020-09-25 04:22:16,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:16,344 INFO L93 Difference]: Finished difference Result 3735 states and 4756 transitions. [2020-09-25 04:22:16,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:16,344 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-09-25 04:22:16,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:16,358 INFO L225 Difference]: With dead ends: 3735 [2020-09-25 04:22:16,359 INFO L226 Difference]: Without dead ends: 2469 [2020-09-25 04:22:16,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:16,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2020-09-25 04:22:16,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 2467. [2020-09-25 04:22:16,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2467 states. [2020-09-25 04:22:16,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 3074 transitions. [2020-09-25 04:22:16,446 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 3074 transitions. Word has length 60 [2020-09-25 04:22:16,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:16,447 INFO L479 AbstractCegarLoop]: Abstraction has 2467 states and 3074 transitions. [2020-09-25 04:22:16,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:16,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 3074 transitions. [2020-09-25 04:22:16,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 04:22:16,449 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:16,450 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] [2020-09-25 04:22:16,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 04:22:16,450 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:16,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:16,450 INFO L82 PathProgramCache]: Analyzing trace with hash -729752476, now seen corresponding path program 1 times [2020-09-25 04:22:16,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:16,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182607314] [2020-09-25 04:22:16,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 04:22:16,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 04:22:16,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 04:22:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:22:16,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:16,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:16,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:16,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:16,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182607314] [2020-09-25 04:22:16,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:16,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:16,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616147593] [2020-09-25 04:22:16,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:16,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:16,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:16,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:16,539 INFO L87 Difference]: Start difference. First operand 2467 states and 3074 transitions. Second operand 3 states. [2020-09-25 04:22:16,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:16,630 INFO L93 Difference]: Finished difference Result 7143 states and 8900 transitions. [2020-09-25 04:22:16,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:16,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-09-25 04:22:16,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:16,648 INFO L225 Difference]: With dead ends: 7143 [2020-09-25 04:22:16,648 INFO L226 Difference]: Without dead ends: 3637 [2020-09-25 04:22:16,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:16,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3637 states. [2020-09-25 04:22:16,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3637 to 3635. [2020-09-25 04:22:16,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3635 states. [2020-09-25 04:22:16,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3635 states to 3635 states and 4370 transitions. [2020-09-25 04:22:16,764 INFO L78 Accepts]: Start accepts. Automaton has 3635 states and 4370 transitions. Word has length 61 [2020-09-25 04:22:16,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:16,765 INFO L479 AbstractCegarLoop]: Abstraction has 3635 states and 4370 transitions. [2020-09-25 04:22:16,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:16,765 INFO L276 IsEmpty]: Start isEmpty. Operand 3635 states and 4370 transitions. [2020-09-25 04:22:16,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 04:22:16,768 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:16,768 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] [2020-09-25 04:22:16,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 04:22:16,768 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:16,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:16,769 INFO L82 PathProgramCache]: Analyzing trace with hash 495374346, now seen corresponding path program 1 times [2020-09-25 04:22:16,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:16,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827431145] [2020-09-25 04:22:16,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 04:22:16,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 04:22:16,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:16,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 04:22:16,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:16,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:16,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:16,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:16,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:16,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827431145] [2020-09-25 04:22:16,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:16,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:16,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975707349] [2020-09-25 04:22:16,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:16,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:16,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:16,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:16,848 INFO L87 Difference]: Start difference. First operand 3635 states and 4370 transitions. Second operand 3 states. [2020-09-25 04:22:16,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:16,887 INFO L93 Difference]: Finished difference Result 4087 states and 4852 transitions. [2020-09-25 04:22:16,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:16,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-09-25 04:22:16,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:16,900 INFO L225 Difference]: With dead ends: 4087 [2020-09-25 04:22:16,901 INFO L226 Difference]: Without dead ends: 2917 [2020-09-25 04:22:16,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:16,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2020-09-25 04:22:16,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 2467. [2020-09-25 04:22:16,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2467 states. [2020-09-25 04:22:16,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 2914 transitions. [2020-09-25 04:22:16,973 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 2914 transitions. Word has length 61 [2020-09-25 04:22:16,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:16,974 INFO L479 AbstractCegarLoop]: Abstraction has 2467 states and 2914 transitions. [2020-09-25 04:22:16,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:16,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 2914 transitions. [2020-09-25 04:22:16,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 04:22:16,977 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:16,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:16,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 04:22:16,978 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:16,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:16,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1060451273, now seen corresponding path program 1 times [2020-09-25 04:22:16,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:16,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133814407] [2020-09-25 04:22:16,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:17,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:17,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 04:22:17,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:17,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 04:22:17,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:17,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:17,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:17,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 04:22:17,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:17,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:17,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:17,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:17,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:17,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:17,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:17,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:17,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:17,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:17,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:17,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:17,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:17,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:17,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:17,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133814407] [2020-09-25 04:22:17,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:17,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:17,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120627045] [2020-09-25 04:22:17,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:17,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:17,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:17,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:17,058 INFO L87 Difference]: Start difference. First operand 2467 states and 2914 transitions. Second operand 3 states. [2020-09-25 04:22:17,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:17,085 INFO L93 Difference]: Finished difference Result 2467 states and 2914 transitions. [2020-09-25 04:22:17,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:17,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-09-25 04:22:17,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:17,086 INFO L225 Difference]: With dead ends: 2467 [2020-09-25 04:22:17,087 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 04:22:17,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:17,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 04:22:17,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 04:22:17,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 04:22:17,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 04:22:17,092 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2020-09-25 04:22:17,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:17,092 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 04:22:17,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 04:22:17,093 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 04:22:17,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 04:22:17,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 04:22:17,122 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 04:22:17,122 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 04:22:17,122 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 04:22:17,123 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 04:22:17,123 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 04:22:17,123 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 04:22:17,123 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-09-25 04:22:17,123 INFO L268 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-09-25 04:22:17,123 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 121) no Hoare annotation was computed. [2020-09-25 04:22:17,123 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-25 04:22:17,124 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 04:22:17,124 INFO L268 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-09-25 04:22:17,124 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 04:22:17,124 INFO L268 CegarLoopResult]: For program point L86-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 04:22:17,124 INFO L271 CegarLoopResult]: At program point L111-1(lines 30 116) the Hoare annotation is: true [2020-09-25 04:22:17,124 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-25 04:22:17,125 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 04:22:17,125 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 04:22:17,125 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 04:22:17,125 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-25 04:22:17,125 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-25 04:22:17,125 INFO L268 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-09-25 04:22:17,125 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-09-25 04:22:17,126 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 04:22:17,126 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 04:22:17,126 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-25 04:22:17,126 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-25 04:22:17,126 INFO L264 CegarLoopResult]: At program point L112-1(lines 5 121) the Hoare annotation is: false [2020-09-25 04:22:17,126 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 04:22:17,126 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 121) no Hoare annotation was computed. [2020-09-25 04:22:17,128 INFO L268 CegarLoopResult]: For program point L71-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 04:22:17,128 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 119) no Hoare annotation was computed. [2020-09-25 04:22:17,129 INFO L268 CegarLoopResult]: For program point L96-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 04:22:17,129 INFO L268 CegarLoopResult]: For program point L63-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 04:22:17,130 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 121) the Hoare annotation is: true [2020-09-25 04:22:17,130 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-25 04:22:17,130 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 04:22:17,130 INFO L268 CegarLoopResult]: For program point L55-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 04:22:17,130 INFO L268 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-09-25 04:22:17,130 INFO L268 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-09-25 04:22:17,130 INFO L268 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-09-25 04:22:17,131 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-09-25 04:22:17,131 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 04:22:17,131 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 04:22:17,131 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-25 04:22:17,131 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-25 04:22:17,131 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 04:22:17,131 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-25 04:22:17,132 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-25 04:22:17,132 INFO L268 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-09-25 04:22:17,132 INFO L268 CegarLoopResult]: For program point L81-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 04:22:17,132 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 04:22:17,132 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 04:22:17,132 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 04:22:17,132 INFO L268 CegarLoopResult]: For program point L106-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 04:22:17,132 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 04:22:17,134 INFO L268 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-09-25 04:22:17,134 INFO L268 CegarLoopResult]: For program point L32(lines 32 34) no Hoare annotation was computed. [2020-09-25 04:22:17,134 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 04:22:17,134 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 04:22:17,134 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 04:22:17,135 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-25 04:22:17,135 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 04:22:17,135 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-25 04:22:17,135 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-25 04:22:17,135 INFO L268 CegarLoopResult]: For program point L91-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 04:22:17,135 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 04:22:17,135 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-25 04:22:17,135 INFO L268 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-09-25 04:22:17,136 INFO L268 CegarLoopResult]: For program point L75-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 04:22:17,137 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 04:22:17,137 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 04:22:17,137 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 04:22:17,137 INFO L268 CegarLoopResult]: For program point L67-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 04:22:17,137 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-25 04:22:17,138 INFO L268 CegarLoopResult]: For program point L59-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 04:22:17,138 INFO L271 CegarLoopResult]: At program point L117(lines 5 121) the Hoare annotation is: true [2020-09-25 04:22:17,138 INFO L268 CegarLoopResult]: For program point L51(lines 51 53) no Hoare annotation was computed. [2020-09-25 04:22:17,140 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 04:22:17,140 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 04:22:17,140 INFO L268 CegarLoopResult]: For program point L51-2(lines 30 116) no Hoare annotation was computed. [2020-09-25 04:22:17,140 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 04:22:17,140 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-25 04:22:17,141 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-25 04:22:17,141 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 04:22:17,141 INFO L268 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-09-25 04:22:17,141 INFO L268 CegarLoopResult]: For program point L101-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 04:22:17,141 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-09-25 04:22:17,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:22:17 BoogieIcfgContainer [2020-09-25 04:22:17,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:22:17,162 INFO L168 Benchmark]: Toolchain (without parser) took 4463.52 ms. Allocated memory was 137.4 MB in the beginning and 253.2 MB in the end (delta: 115.9 MB). Free memory was 100.3 MB in the beginning and 89.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 126.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:17,162 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 04:22:17,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.27 ms. Allocated memory is still 137.4 MB. Free memory was 99.7 MB in the beginning and 89.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:17,164 INFO L168 Benchmark]: Boogie Preprocessor took 120.94 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 89.4 MB in the beginning and 177.6 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:17,165 INFO L168 Benchmark]: RCFGBuilder took 502.60 ms. Allocated memory is still 199.8 MB. Free memory was 177.6 MB in the beginning and 157.0 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:17,165 INFO L168 Benchmark]: TraceAbstraction took 3498.41 ms. Allocated memory was 199.8 MB in the beginning and 253.2 MB in the end (delta: 53.5 MB). Free memory was 157.0 MB in the beginning and 89.6 MB in the end (delta: 67.4 MB). Peak memory consumption was 120.9 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:17,169 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 329.27 ms. Allocated memory is still 137.4 MB. Free memory was 99.7 MB in the beginning and 89.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.94 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 89.4 MB in the beginning and 177.6 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 502.60 ms. Allocated memory is still 199.8 MB. Free memory was 177.6 MB in the beginning and 157.0 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3498.41 ms. Allocated memory was 199.8 MB in the beginning and 253.2 MB in the end (delta: 53.5 MB). Free memory was 157.0 MB in the beginning and 89.6 MB in the end (delta: 67.4 MB). Peak memory consumption was 120.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 119]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 14, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1813 SDtfs, 648 SDslu, 1281 SDs, 0 SdLazy, 69 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3635occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 1022 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 137 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 805 ConstructedInterpolants, 0 QuantifiedInterpolants, 58429 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...