/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_8.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:22:11,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:22:11,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:22:11,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:22:11,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:22:11,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:22:11,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:22:11,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:22:11,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:22:11,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:22:11,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:22:11,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:22:11,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:22:11,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:22:11,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:22:11,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:22:11,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:22:11,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:22:11,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:22:11,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:22:11,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:22:11,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:22:11,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:22:11,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:22:11,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:22:11,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:22:11,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:22:11,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:22:11,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:22:11,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:22:11,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:22:11,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:22:11,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:22:11,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:22:11,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:22:11,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:22:11,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:22:11,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:22:11,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:22:11,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:22:11,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:22:11,113 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 04:22:11,140 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:22:11,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:22:11,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:22:11,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:22:11,142 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:22:11,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:22:11,143 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:22:11,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:22:11,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:22:11,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:22:11,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:22:11,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:22:11,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:22:11,144 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:22:11,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:22:11,144 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:22:11,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:22:11,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:22:11,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:22:11,145 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:22:11,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:22:11,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:22:11,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:22:11,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:22:11,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:22:11,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:22:11,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:22:11,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:22:11,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:22:11,147 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 04:22:11,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:22:11,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:22:11,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:22:11,651 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:22:11,652 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:22:11,653 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_8.c [2020-09-25 04:22:11,729 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e2fdd197/cc302795ddc74ef0a4756ea944b9a21a/FLAG24e8fe41d [2020-09-25 04:22:12,203 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:22:12,204 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_8.c [2020-09-25 04:22:12,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e2fdd197/cc302795ddc74ef0a4756ea944b9a21a/FLAG24e8fe41d [2020-09-25 04:22:12,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e2fdd197/cc302795ddc74ef0a4756ea944b9a21a [2020-09-25 04:22:12,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:22:12,564 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:22:12,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:22:12,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:22:12,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:22:12,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:22:12" (1/1) ... [2020-09-25 04:22:12,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d72532b 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 04:22:12,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:22:12" (1/1) ... [2020-09-25 04:22:12,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:22:12,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:22:12,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:22:12,877 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:22:12,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:22:12,921 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:22:12,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:12 WrapperNode [2020-09-25 04:22:12,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:22:12,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:22:12,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:22:12,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:22:12,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:12" (1/1) ... [2020-09-25 04:22:12,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:12" (1/1) ... [2020-09-25 04:22:13,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:12" (1/1) ... [2020-09-25 04:22:13,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:12" (1/1) ... [2020-09-25 04:22:13,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:12" (1/1) ... [2020-09-25 04:22:13,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:12" (1/1) ... [2020-09-25 04:22:13,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:12" (1/1) ... [2020-09-25 04:22:13,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:22:13,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:22:13,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:22:13,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:22:13,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:12" (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 04:22:13,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:22:13,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:22:13,125 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:22:13,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:22:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:22:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:22:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:22:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:22:13,505 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:22:13,506 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 04:22:13,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:22:13 BoogieIcfgContainer [2020-09-25 04:22:13,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:22:13,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:22:13,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:22:13,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:22:13,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:22:12" (1/3) ... [2020-09-25 04:22:13,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2752d7f9 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 04:22:13,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:12" (2/3) ... [2020-09-25 04:22:13,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2752d7f9 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 04:22:13,518 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 04:22:13,521 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_8.c [2020-09-25 04:22:13,530 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:22:13,539 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:22:13,561 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:22:13,593 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:22:13,593 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:22:13,593 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:22:13,593 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:22:13,593 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:22:13,593 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:22:13,594 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:22:13,594 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:22:13,616 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-09-25 04:22:13,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 04:22:13,626 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:13,627 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 04:22:13,627 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:13,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:13,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1717644884, now seen corresponding path program 1 times [2020-09-25 04:22:13,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:13,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422715815] [2020-09-25 04:22:13,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:13,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:13,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:13,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 04:22:13,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:13,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-25 04:22:13,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:13,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:13,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:13,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 04:22:13,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:13,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:22:14,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:14,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:22:14,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:14,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:14,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:14,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,097 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 04:22:14,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422715815] [2020-09-25 04:22:14,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:14,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:14,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245180559] [2020-09-25 04:22:14,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:14,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:14,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:14,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:14,128 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 3 states. [2020-09-25 04:22:14,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:14,205 INFO L93 Difference]: Finished difference Result 213 states and 291 transitions. [2020-09-25 04:22:14,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:14,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-09-25 04:22:14,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:14,225 INFO L225 Difference]: With dead ends: 213 [2020-09-25 04:22:14,225 INFO L226 Difference]: Without dead ends: 144 [2020-09-25 04:22:14,230 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 04:22:14,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-25 04:22:14,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2020-09-25 04:22:14,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-25 04:22:14,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 186 transitions. [2020-09-25 04:22:14,295 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 186 transitions. Word has length 61 [2020-09-25 04:22:14,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:14,296 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 186 transitions. [2020-09-25 04:22:14,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:14,296 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 186 transitions. [2020-09-25 04:22:14,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 04:22:14,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:14,299 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 04:22:14,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:22:14,299 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:14,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:14,300 INFO L82 PathProgramCache]: Analyzing trace with hash 16380224, now seen corresponding path program 1 times [2020-09-25 04:22:14,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:14,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056028199] [2020-09-25 04:22:14,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 04:22:14,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-25 04:22:14,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:14,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 04:22:14,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:22:14,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:22:14,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:14,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:14,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:14,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:14,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:14,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,562 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 04:22:14,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056028199] [2020-09-25 04:22:14,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:14,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:14,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860087760] [2020-09-25 04:22:14,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:14,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:14,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:14,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:14,570 INFO L87 Difference]: Start difference. First operand 142 states and 186 transitions. Second operand 3 states. [2020-09-25 04:22:14,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:14,612 INFO L93 Difference]: Finished difference Result 173 states and 229 transitions. [2020-09-25 04:22:14,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:14,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-09-25 04:22:14,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:14,621 INFO L225 Difference]: With dead ends: 173 [2020-09-25 04:22:14,621 INFO L226 Difference]: Without dead ends: 171 [2020-09-25 04:22:14,622 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 04:22:14,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-09-25 04:22:14,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 142. [2020-09-25 04:22:14,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-25 04:22:14,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 185 transitions. [2020-09-25 04:22:14,651 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 185 transitions. Word has length 62 [2020-09-25 04:22:14,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:14,652 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 185 transitions. [2020-09-25 04:22:14,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:14,656 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 185 transitions. [2020-09-25 04:22:14,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 04:22:14,660 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:14,660 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 04:22:14,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:22:14,663 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:14,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:14,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1707628474, now seen corresponding path program 1 times [2020-09-25 04:22:14,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:14,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143368413] [2020-09-25 04:22:14,665 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 04:22:14,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 04:22:14,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 04:22:14,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:14,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 04:22:14,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:14,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:14,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:14,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:14,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:14,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:14,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,818 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 04:22:14,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143368413] [2020-09-25 04:22:14,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:14,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:14,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454767554] [2020-09-25 04:22:14,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:14,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:14,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:14,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:14,820 INFO L87 Difference]: Start difference. First operand 142 states and 185 transitions. Second operand 3 states. [2020-09-25 04:22:14,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:14,860 INFO L93 Difference]: Finished difference Result 346 states and 473 transitions. [2020-09-25 04:22:14,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:14,861 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-09-25 04:22:14,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:14,866 INFO L225 Difference]: With dead ends: 346 [2020-09-25 04:22:14,867 INFO L226 Difference]: Without dead ends: 241 [2020-09-25 04:22:14,868 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 04:22:14,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-09-25 04:22:14,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 239. [2020-09-25 04:22:14,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-25 04:22:14,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 320 transitions. [2020-09-25 04:22:14,900 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 320 transitions. Word has length 62 [2020-09-25 04:22:14,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:14,901 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 320 transitions. [2020-09-25 04:22:14,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:14,901 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 320 transitions. [2020-09-25 04:22:14,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 04:22:14,907 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:14,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:14,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:22:14,908 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:14,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:14,908 INFO L82 PathProgramCache]: Analyzing trace with hash -298745719, now seen corresponding path program 1 times [2020-09-25 04:22:14,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:14,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460918915] [2020-09-25 04:22:14,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [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: 73 [2020-09-25 04:22:15,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 04:22:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:22:15,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:15,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:22:15,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,052 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 04:22:15,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460918915] [2020-09-25 04:22:15,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:15,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:15,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762983846] [2020-09-25 04:22:15,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:15,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:15,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:15,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,060 INFO L87 Difference]: Start difference. First operand 239 states and 320 transitions. Second operand 3 states. [2020-09-25 04:22:15,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:15,082 INFO L93 Difference]: Finished difference Result 293 states and 396 transitions. [2020-09-25 04:22:15,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:15,083 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-09-25 04:22:15,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:15,085 INFO L225 Difference]: With dead ends: 293 [2020-09-25 04:22:15,085 INFO L226 Difference]: Without dead ends: 291 [2020-09-25 04:22:15,086 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 04:22:15,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-09-25 04:22:15,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 239. [2020-09-25 04:22:15,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-25 04:22:15,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 318 transitions. [2020-09-25 04:22:15,115 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 318 transitions. Word has length 63 [2020-09-25 04:22:15,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:15,115 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 318 transitions. [2020-09-25 04:22:15,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:15,117 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 318 transitions. [2020-09-25 04:22:15,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 04:22:15,118 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:15,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:15,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:22:15,121 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:15,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:15,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1397120136, now seen corresponding path program 1 times [2020-09-25 04:22:15,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:15,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204873087] [2020-09-25 04:22:15,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 04:22:15,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 04:22:15,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 04:22:15,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:15,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:15,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:15,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,228 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 04:22:15,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204873087] [2020-09-25 04:22:15,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:15,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:15,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140855748] [2020-09-25 04:22:15,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:15,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:15,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:15,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,230 INFO L87 Difference]: Start difference. First operand 239 states and 318 transitions. Second operand 3 states. [2020-09-25 04:22:15,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:15,250 INFO L93 Difference]: Finished difference Result 631 states and 864 transitions. [2020-09-25 04:22:15,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:15,251 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-09-25 04:22:15,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:15,254 INFO L225 Difference]: With dead ends: 631 [2020-09-25 04:22:15,254 INFO L226 Difference]: Without dead ends: 429 [2020-09-25 04:22:15,256 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 04:22:15,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-25 04:22:15,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 427. [2020-09-25 04:22:15,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-09-25 04:22:15,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 574 transitions. [2020-09-25 04:22:15,270 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 574 transitions. Word has length 63 [2020-09-25 04:22:15,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:15,270 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 574 transitions. [2020-09-25 04:22:15,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:15,271 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 574 transitions. [2020-09-25 04:22:15,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 04:22:15,272 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:15,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:15,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:22:15,273 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:15,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:15,273 INFO L82 PathProgramCache]: Analyzing trace with hash 361296622, now seen corresponding path program 1 times [2020-09-25 04:22:15,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:15,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1586921215] [2020-09-25 04:22:15,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 04:22:15,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 04:22:15,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 04:22:15,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:15,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:15,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:15,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,382 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 04:22:15,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1586921215] [2020-09-25 04:22:15,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:15,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:15,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250908794] [2020-09-25 04:22:15,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:15,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:15,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:15,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,384 INFO L87 Difference]: Start difference. First operand 427 states and 574 transitions. Second operand 3 states. [2020-09-25 04:22:15,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:15,414 INFO L93 Difference]: Finished difference Result 1183 states and 1616 transitions. [2020-09-25 04:22:15,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:15,415 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-09-25 04:22:15,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:15,419 INFO L225 Difference]: With dead ends: 1183 [2020-09-25 04:22:15,419 INFO L226 Difference]: Without dead ends: 793 [2020-09-25 04:22:15,421 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 04:22:15,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2020-09-25 04:22:15,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 791. [2020-09-25 04:22:15,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-25 04:22:15,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1062 transitions. [2020-09-25 04:22:15,446 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1062 transitions. Word has length 64 [2020-09-25 04:22:15,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:15,447 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1062 transitions. [2020-09-25 04:22:15,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:15,447 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1062 transitions. [2020-09-25 04:22:15,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 04:22:15,449 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:15,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:15,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:22:15,450 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:15,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:15,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1477714988, now seen corresponding path program 1 times [2020-09-25 04:22:15,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:15,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1200054102] [2020-09-25 04:22:15,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 04:22:15,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 04:22:15,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 04:22:15,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:22:15,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:15,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:15,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,547 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 04:22:15,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1200054102] [2020-09-25 04:22:15,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:15,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:15,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629952727] [2020-09-25 04:22:15,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:15,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:15,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:15,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,550 INFO L87 Difference]: Start difference. First operand 791 states and 1062 transitions. Second operand 3 states. [2020-09-25 04:22:15,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:15,572 INFO L93 Difference]: Finished difference Result 971 states and 1312 transitions. [2020-09-25 04:22:15,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:15,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-09-25 04:22:15,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:15,578 INFO L225 Difference]: With dead ends: 971 [2020-09-25 04:22:15,578 INFO L226 Difference]: Without dead ends: 969 [2020-09-25 04:22:15,579 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 04:22:15,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2020-09-25 04:22:15,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 791. [2020-09-25 04:22:15,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-25 04:22:15,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1054 transitions. [2020-09-25 04:22:15,612 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1054 transitions. Word has length 64 [2020-09-25 04:22:15,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:15,613 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1054 transitions. [2020-09-25 04:22:15,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:15,613 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1054 transitions. [2020-09-25 04:22:15,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 04:22:15,614 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:15,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:15,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:22:15,615 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:15,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:15,615 INFO L82 PathProgramCache]: Analyzing trace with hash 628943709, now seen corresponding path program 1 times [2020-09-25 04:22:15,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:15,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060304606] [2020-09-25 04:22:15,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:22:15,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 04:22:15,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 04:22:15,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:22:15,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:15,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:15,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:15,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:15,699 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 04:22:15,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060304606] [2020-09-25 04:22:15,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:15,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:15,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822293645] [2020-09-25 04:22:15,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:15,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:15,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:15,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,701 INFO L87 Difference]: Start difference. First operand 791 states and 1054 transitions. Second operand 3 states. [2020-09-25 04:22:15,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:15,721 INFO L93 Difference]: Finished difference Result 963 states and 1288 transitions. [2020-09-25 04:22:15,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:15,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-09-25 04:22:15,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:15,726 INFO L225 Difference]: With dead ends: 963 [2020-09-25 04:22:15,726 INFO L226 Difference]: Without dead ends: 961 [2020-09-25 04:22:15,727 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 04:22:15,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2020-09-25 04:22:15,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 791. [2020-09-25 04:22:15,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-25 04:22:15,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1046 transitions. [2020-09-25 04:22:15,748 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1046 transitions. Word has length 65 [2020-09-25 04:22:15,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:15,749 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1046 transitions. [2020-09-25 04:22:15,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:15,749 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1046 transitions. [2020-09-25 04:22:15,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 04:22:15,750 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:15,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:15,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:22:15,751 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:15,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:15,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1684460868, now seen corresponding path program 1 times [2020-09-25 04:22:15,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:15,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914987489] [2020-09-25 04:22:15,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:22:15,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 04:22:15,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 04:22:15,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:15,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:15,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:15,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:15,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,830 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 04:22:15,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1914987489] [2020-09-25 04:22:15,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:15,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:15,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548596843] [2020-09-25 04:22:15,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:15,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:15,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:15,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,832 INFO L87 Difference]: Start difference. First operand 791 states and 1046 transitions. Second operand 3 states. [2020-09-25 04:22:15,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:15,861 INFO L93 Difference]: Finished difference Result 2251 states and 3000 transitions. [2020-09-25 04:22:15,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:15,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-09-25 04:22:15,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:15,870 INFO L225 Difference]: With dead ends: 2251 [2020-09-25 04:22:15,870 INFO L226 Difference]: Without dead ends: 1497 [2020-09-25 04:22:15,872 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 04:22:15,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2020-09-25 04:22:15,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1495. [2020-09-25 04:22:15,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-09-25 04:22:15,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1958 transitions. [2020-09-25 04:22:15,912 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1958 transitions. Word has length 65 [2020-09-25 04:22:15,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:15,912 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 1958 transitions. [2020-09-25 04:22:15,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:15,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1958 transitions. [2020-09-25 04:22:15,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-25 04:22:15,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:15,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:15,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:22:15,915 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:15,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:15,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1510854248, now seen corresponding path program 1 times [2020-09-25 04:22:15,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:15,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704316353] [2020-09-25 04:22:15,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 04:22:15,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 04:22:15,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 04:22:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:22:15,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:15,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:15,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:15,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:15,995 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 04:22:15,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704316353] [2020-09-25 04:22:15,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:15,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:15,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139364170] [2020-09-25 04:22:15,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:15,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:15,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:15,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,997 INFO L87 Difference]: Start difference. First operand 1495 states and 1958 transitions. Second operand 3 states. [2020-09-25 04:22:16,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:16,022 INFO L93 Difference]: Finished difference Result 1803 states and 2360 transitions. [2020-09-25 04:22:16,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:16,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-09-25 04:22:16,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:16,030 INFO L225 Difference]: With dead ends: 1803 [2020-09-25 04:22:16,030 INFO L226 Difference]: Without dead ends: 1801 [2020-09-25 04:22:16,031 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 04:22:16,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2020-09-25 04:22:16,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1495. [2020-09-25 04:22:16,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-09-25 04:22:16,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1942 transitions. [2020-09-25 04:22:16,066 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1942 transitions. Word has length 66 [2020-09-25 04:22:16,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:16,067 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 1942 transitions. [2020-09-25 04:22:16,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:16,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1942 transitions. [2020-09-25 04:22:16,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-25 04:22:16,069 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:16,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:16,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 04:22:16,069 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:16,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:16,070 INFO L82 PathProgramCache]: Analyzing trace with hash -678433246, now seen corresponding path program 1 times [2020-09-25 04:22:16,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:16,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715061098] [2020-09-25 04:22:16,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 04:22:16,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 04:22:16,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 04:22:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:16,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:16,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:16,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:16,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,162 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 04:22:16,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [715061098] [2020-09-25 04:22:16,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:16,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:16,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172601278] [2020-09-25 04:22:16,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:16,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:16,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:16,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:16,165 INFO L87 Difference]: Start difference. First operand 1495 states and 1942 transitions. Second operand 3 states. [2020-09-25 04:22:16,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:16,216 INFO L93 Difference]: Finished difference Result 4315 states and 5624 transitions. [2020-09-25 04:22:16,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:16,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-09-25 04:22:16,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:16,228 INFO L225 Difference]: With dead ends: 4315 [2020-09-25 04:22:16,229 INFO L226 Difference]: Without dead ends: 2857 [2020-09-25 04:22:16,232 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 04:22:16,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2020-09-25 04:22:16,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2855. [2020-09-25 04:22:16,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states. [2020-09-25 04:22:16,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3654 transitions. [2020-09-25 04:22:16,297 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3654 transitions. Word has length 66 [2020-09-25 04:22:16,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:16,297 INFO L479 AbstractCegarLoop]: Abstraction has 2855 states and 3654 transitions. [2020-09-25 04:22:16,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:16,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3654 transitions. [2020-09-25 04:22:16,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 04:22:16,300 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:16,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:16,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 04:22:16,301 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:16,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:16,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1214689743, now seen corresponding path program 1 times [2020-09-25 04:22:16,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:16,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631852965] [2020-09-25 04:22:16,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 04:22:16,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 04:22:16,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:16,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 04:22:16,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:22:16,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:16,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:16,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:16,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,379 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 04:22:16,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631852965] [2020-09-25 04:22:16,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:16,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:16,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982647030] [2020-09-25 04:22:16,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:16,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:16,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:16,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:16,381 INFO L87 Difference]: Start difference. First operand 2855 states and 3654 transitions. Second operand 3 states. [2020-09-25 04:22:16,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:16,416 INFO L93 Difference]: Finished difference Result 3403 states and 4328 transitions. [2020-09-25 04:22:16,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:16,417 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-09-25 04:22:16,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:16,431 INFO L225 Difference]: With dead ends: 3403 [2020-09-25 04:22:16,431 INFO L226 Difference]: Without dead ends: 3401 [2020-09-25 04:22:16,433 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 04:22:16,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2020-09-25 04:22:16,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 2855. [2020-09-25 04:22:16,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states. [2020-09-25 04:22:16,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3622 transitions. [2020-09-25 04:22:16,501 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3622 transitions. Word has length 67 [2020-09-25 04:22:16,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:16,501 INFO L479 AbstractCegarLoop]: Abstraction has 2855 states and 3622 transitions. [2020-09-25 04:22:16,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:16,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3622 transitions. [2020-09-25 04:22:16,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 04:22:16,504 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:16,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:16,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 04:22:16,504 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:16,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:16,505 INFO L82 PathProgramCache]: Analyzing trace with hash 443652336, now seen corresponding path program 1 times [2020-09-25 04:22:16,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:16,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [296981373] [2020-09-25 04:22:16,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 04:22:16,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 04:22:16,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 04:22:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:16,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:16,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:16,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:16,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,581 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 04:22:16,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [296981373] [2020-09-25 04:22:16,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:16,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:16,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499059470] [2020-09-25 04:22:16,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:16,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:16,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:16,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:16,583 INFO L87 Difference]: Start difference. First operand 2855 states and 3622 transitions. Second operand 3 states. [2020-09-25 04:22:16,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:16,637 INFO L93 Difference]: Finished difference Result 8299 states and 10536 transitions. [2020-09-25 04:22:16,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:16,637 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-09-25 04:22:16,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:16,683 INFO L225 Difference]: With dead ends: 8299 [2020-09-25 04:22:16,683 INFO L226 Difference]: Without dead ends: 5481 [2020-09-25 04:22:16,688 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 04:22:16,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5481 states. [2020-09-25 04:22:16,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5481 to 5479. [2020-09-25 04:22:16,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-25 04:22:16,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6822 transitions. [2020-09-25 04:22:16,805 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6822 transitions. Word has length 67 [2020-09-25 04:22:16,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:16,805 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6822 transitions. [2020-09-25 04:22:16,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:16,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6822 transitions. [2020-09-25 04:22:16,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-25 04:22:16,809 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:16,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:16,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 04:22:16,810 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:16,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:16,810 INFO L82 PathProgramCache]: Analyzing trace with hash 192792828, now seen corresponding path program 1 times [2020-09-25 04:22:16,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:16,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423648942] [2020-09-25 04:22:16,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 04:22:16,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 04:22:16,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:16,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 04:22:16,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:22:16,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:16,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:16,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:16,887 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 04:22:16,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423648942] [2020-09-25 04:22:16,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:16,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:16,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155653170] [2020-09-25 04:22:16,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:16,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:16,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:16,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:16,889 INFO L87 Difference]: Start difference. First operand 5479 states and 6822 transitions. Second operand 3 states. [2020-09-25 04:22:16,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:16,939 INFO L93 Difference]: Finished difference Result 6443 states and 7912 transitions. [2020-09-25 04:22:16,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:16,940 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-09-25 04:22:16,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:16,965 INFO L225 Difference]: With dead ends: 6443 [2020-09-25 04:22:16,965 INFO L226 Difference]: Without dead ends: 6441 [2020-09-25 04:22:16,967 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 04:22:16,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6441 states. [2020-09-25 04:22:17,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6441 to 5479. [2020-09-25 04:22:17,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-25 04:22:17,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6758 transitions. [2020-09-25 04:22:17,087 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6758 transitions. Word has length 68 [2020-09-25 04:22:17,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:17,088 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6758 transitions. [2020-09-25 04:22:17,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:17,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6758 transitions. [2020-09-25 04:22:17,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-25 04:22:17,092 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:17,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:17,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 04:22:17,093 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:17,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:17,093 INFO L82 PathProgramCache]: Analyzing trace with hash 868567382, now seen corresponding path program 1 times [2020-09-25 04:22:17,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:17,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107131150] [2020-09-25 04:22:17,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:17,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:17,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:17,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 04:22:17,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:17,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 04:22:17,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:17,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:17,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:17,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 04:22:17,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:17,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:17,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:17,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:17,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:17,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:17,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:17,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:17,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:17,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:17,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:17,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:17,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:17,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:17,179 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 04:22:17,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107131150] [2020-09-25 04:22:17,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:17,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:17,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445424873] [2020-09-25 04:22:17,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:17,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:17,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:17,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:17,181 INFO L87 Difference]: Start difference. First operand 5479 states and 6758 transitions. Second operand 3 states. [2020-09-25 04:22:17,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:17,307 INFO L93 Difference]: Finished difference Result 15977 states and 19687 transitions. [2020-09-25 04:22:17,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:17,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-09-25 04:22:17,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:17,327 INFO L225 Difference]: With dead ends: 15977 [2020-09-25 04:22:17,328 INFO L226 Difference]: Without dead ends: 5479 [2020-09-25 04:22:17,342 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 04:22:17,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2020-09-25 04:22:17,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2020-09-25 04:22:17,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-25 04:22:17,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6502 transitions. [2020-09-25 04:22:17,433 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6502 transitions. Word has length 68 [2020-09-25 04:22:17,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:17,433 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6502 transitions. [2020-09-25 04:22:17,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:17,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6502 transitions. [2020-09-25 04:22:17,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 04:22:17,438 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:17,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:17,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 04:22:17,438 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:17,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:17,439 INFO L82 PathProgramCache]: Analyzing trace with hash 875079941, now seen corresponding path program 1 times [2020-09-25 04:22:17,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:17,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85229426] [2020-09-25 04:22:17,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:17,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:17,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:17,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 04:22:17,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:17,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 04:22:17,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:17,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:17,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:17,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-25 04:22:17,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:22:17,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:17,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:17,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:17,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:17,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:17,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:17,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:17,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:17,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:17,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:17,518 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 04:22:17,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85229426] [2020-09-25 04:22:17,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:17,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:17,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259709332] [2020-09-25 04:22:17,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:17,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:17,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:17,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:17,520 INFO L87 Difference]: Start difference. First operand 5479 states and 6502 transitions. Second operand 3 states. [2020-09-25 04:22:17,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:17,557 INFO L93 Difference]: Finished difference Result 5479 states and 6502 transitions. [2020-09-25 04:22:17,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:17,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-09-25 04:22:17,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:17,558 INFO L225 Difference]: With dead ends: 5479 [2020-09-25 04:22:17,558 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 04:22:17,566 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 04:22:17,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 04:22:17,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 04:22:17,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 04:22:17,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 04:22:17,567 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2020-09-25 04:22:17,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:17,568 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 04:22:17,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:17,568 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 04:22:17,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 04:22:17,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 04:22:17,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 04:22:17,595 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 04:22:17,595 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 04:22:17,595 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 04:22:17,595 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 04:22:17,595 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 04:22:17,596 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 04:22:17,596 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-09-25 04:22:17,596 INFO L264 CegarLoopResult]: At program point L126-1(lines 5 135) the Hoare annotation is: false [2020-09-25 04:22:17,596 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 04:22:17,596 INFO L268 CegarLoopResult]: For program point L60-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 04:22:17,596 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 04:22:17,596 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 04:22:17,596 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 135) no Hoare annotation was computed. [2020-09-25 04:22:17,597 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-25 04:22:17,597 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-25 04:22:17,597 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 04:22:17,597 INFO L268 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-09-25 04:22:17,597 INFO L268 CegarLoopResult]: For program point L110-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 04:22:17,597 INFO L268 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-09-25 04:22:17,597 INFO L268 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-09-25 04:22:17,597 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-25 04:22:17,598 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-25 04:22:17,598 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-25 04:22:17,598 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 04:22:17,598 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-09-25 04:22:17,598 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 04:22:17,598 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 04:22:17,598 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 04:22:17,599 INFO L268 CegarLoopResult]: For program point L95-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 04:22:17,599 INFO L268 CegarLoopResult]: For program point L120-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 04:22:17,599 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 04:22:17,599 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 04:22:17,599 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-25 04:22:17,599 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-25 04:22:17,599 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-25 04:22:17,600 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 04:22:17,600 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 135) no Hoare annotation was computed. [2020-09-25 04:22:17,600 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-25 04:22:17,600 INFO L268 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-09-25 04:22:17,600 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed. [2020-09-25 04:22:17,600 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 135) the Hoare annotation is: true [2020-09-25 04:22:17,600 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-25 04:22:17,601 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 04:22:17,601 INFO L268 CegarLoopResult]: For program point L80-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 04:22:17,601 INFO L268 CegarLoopResult]: For program point L105-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 04:22:17,601 INFO L268 CegarLoopResult]: For program point L72-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 04:22:17,601 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 04:22:17,601 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 04:22:17,601 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-25 04:22:17,602 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 04:22:17,602 INFO L268 CegarLoopResult]: For program point L64-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 04:22:17,602 INFO L268 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-09-25 04:22:17,602 INFO L268 CegarLoopResult]: For program point L56(lines 56 58) no Hoare annotation was computed. [2020-09-25 04:22:17,602 INFO L268 CegarLoopResult]: For program point L56-2(lines 33 130) no Hoare annotation was computed. [2020-09-25 04:22:17,602 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-09-25 04:22:17,602 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-09-25 04:22:17,602 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 04:22:17,602 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 04:22:17,603 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 04:22:17,603 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-25 04:22:17,603 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-25 04:22:17,603 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-25 04:22:17,603 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 04:22:17,603 INFO L271 CegarLoopResult]: At program point L131(lines 5 135) the Hoare annotation is: true [2020-09-25 04:22:17,603 INFO L268 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-09-25 04:22:17,603 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-25 04:22:17,604 INFO L268 CegarLoopResult]: For program point L90-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 04:22:17,604 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 04:22:17,604 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 04:22:17,604 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 04:22:17,604 INFO L268 CegarLoopResult]: For program point L115-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 04:22:17,604 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 04:22:17,604 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-25 04:22:17,605 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-25 04:22:17,605 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 04:22:17,605 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-25 04:22:17,605 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-25 04:22:17,605 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-25 04:22:17,605 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 04:22:17,605 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 04:22:17,605 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 04:22:17,606 INFO L268 CegarLoopResult]: For program point L100-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 04:22:17,606 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 04:22:17,606 INFO L268 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-09-25 04:22:17,606 INFO L268 CegarLoopResult]: For program point L34-2(line 34) no Hoare annotation was computed. [2020-09-25 04:22:17,606 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-25 04:22:17,606 INFO L271 CegarLoopResult]: At program point L125-1(lines 33 130) the Hoare annotation is: true [2020-09-25 04:22:17,606 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-09-25 04:22:17,607 INFO L268 CegarLoopResult]: For program point L84-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 04:22:17,607 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 04:22:17,607 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 04:22:17,607 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 04:22:17,607 INFO L268 CegarLoopResult]: For program point L76-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 04:22:17,607 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 04:22:17,607 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-25 04:22:17,607 INFO L268 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-09-25 04:22:17,607 INFO L268 CegarLoopResult]: For program point L35(lines 35 37) no Hoare annotation was computed. [2020-09-25 04:22:17,608 INFO L268 CegarLoopResult]: For program point L68-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 04:22:17,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:22:17 BoogieIcfgContainer [2020-09-25 04:22:17,620 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:22:17,624 INFO L168 Benchmark]: Toolchain (without parser) took 5062.62 ms. Allocated memory was 138.4 MB in the beginning and 298.8 MB in the end (delta: 160.4 MB). Free memory was 101.5 MB in the beginning and 152.8 MB in the end (delta: -51.3 MB). Peak memory consumption was 109.2 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:17,624 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 04:22:17,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.19 ms. Allocated memory is still 138.4 MB. Free memory was 100.9 MB in the beginning and 90.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:17,626 INFO L168 Benchmark]: Boogie Preprocessor took 127.13 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 90.5 MB in the beginning and 178.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:17,626 INFO L168 Benchmark]: RCFGBuilder took 461.69 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 157.0 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:17,627 INFO L168 Benchmark]: TraceAbstraction took 4107.63 ms. Allocated memory was 200.8 MB in the beginning and 298.8 MB in the end (delta: 98.0 MB). Free memory was 156.3 MB in the beginning and 152.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 101.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:17,630 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 357.19 ms. Allocated memory is still 138.4 MB. Free memory was 100.9 MB in the beginning and 90.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.13 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 90.5 MB in the beginning and 178.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 461.69 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 157.0 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4107.63 ms. Allocated memory was 200.8 MB in the beginning and 298.8 MB in the end (delta: 98.0 MB). Free memory was 156.3 MB in the beginning and 152.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 101.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 133]: 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: 33]: 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, 98 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2345 SDtfs, 845 SDslu, 1664 SDs, 0 SdLazy, 79 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5479occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 16 MinimizatonAttempts, 2257 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 265 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, 1.6s InterpolantComputationTime, 1040 NumberOfCodeBlocks, 1040 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1024 ConstructedInterpolants, 0 QuantifiedInterpolants, 83040 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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...