/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_8.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:18:37,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:18:37,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:18:37,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:18:37,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:18:37,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:18:37,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:18:37,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:18:37,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:18:37,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:18:37,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:18:37,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:18:37,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:18:37,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:18:37,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:18:37,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:18:37,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:18:37,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:18:37,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:18:37,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:18:37,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:18:37,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:18:37,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:18:37,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:18:37,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:18:37,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:18:37,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:18:37,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:18:37,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:18:37,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:18:37,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:18:37,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:18:37,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:18:37,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:18:37,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:18:37,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:18:37,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:18:37,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:18:37,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:18:37,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:18:37,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:18:37,193 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 12:18:37,243 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:18:37,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:18:37,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:18:37,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:18:37,247 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:18:37,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:18:37,247 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:18:37,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:18:37,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:18:37,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:18:37,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:18:37,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:18:37,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:18:37,250 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:18:37,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:18:37,250 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:18:37,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:18:37,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:18:37,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:18:37,251 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:18:37,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:18:37,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:18:37,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:18:37,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:18:37,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:18:37,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:18:37,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:18:37,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:18:37,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:18:37,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:18:37,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:18:37,742 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:18:37,749 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:18:37,752 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:18:37,753 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:18:37,754 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_8.c [2020-09-25 12:18:37,849 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2515e1f5/88eef24af0f149d08cce8943426e4cb7/FLAG4fbadd4dd [2020-09-25 12:18:38,394 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:18:38,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_8.c [2020-09-25 12:18:38,405 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2515e1f5/88eef24af0f149d08cce8943426e4cb7/FLAG4fbadd4dd [2020-09-25 12:18:38,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2515e1f5/88eef24af0f149d08cce8943426e4cb7 [2020-09-25 12:18:38,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:18:38,757 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:18:38,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:18:38,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:18:38,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:18:38,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:18:38" (1/1) ... [2020-09-25 12:18:38,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8f57a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:38, skipping insertion in model container [2020-09-25 12:18:38,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:18:38" (1/1) ... [2020-09-25 12:18:38,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:18:38,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:18:39,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:18:39,076 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:18:39,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:18:39,121 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:18:39,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39 WrapperNode [2020-09-25 12:18:39,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:18:39,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:18:39,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:18:39,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:18:39,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... [2020-09-25 12:18:39,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... [2020-09-25 12:18:39,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... [2020-09-25 12:18:39,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... [2020-09-25 12:18:39,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... [2020-09-25 12:18:39,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... [2020-09-25 12:18:39,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... [2020-09-25 12:18:39,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:18:39,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:18:39,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:18:39,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:18:39,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:18:39,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:18:39,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:18:39,320 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:18:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:18:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:18:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:18:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:18:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:18:39,672 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:18:39,672 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 12:18:39,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:18:39 BoogieIcfgContainer [2020-09-25 12:18:39,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:18:39,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:18:39,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:18:39,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:18:39,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:18:38" (1/3) ... [2020-09-25 12:18:39,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7501d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:18:39, skipping insertion in model container [2020-09-25 12:18:39,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:39" (2/3) ... [2020-09-25 12:18:39,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7501d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:18:39, skipping insertion in model container [2020-09-25 12:18:39,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:18:39" (3/3) ... [2020-09-25 12:18:39,690 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_8.c [2020-09-25 12:18:39,703 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:18:39,715 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:18:39,739 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:18:39,774 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:18:39,774 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:18:39,774 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:18:39,774 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:18:39,775 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:18:39,775 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:18:39,775 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:18:39,775 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:18:39,817 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-09-25 12:18:39,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 12:18:39,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:39,828 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 12:18:39,828 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:39,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:39,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1717644884, now seen corresponding path program 1 times [2020-09-25 12:18:39,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:39,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69684433] [2020-09-25 12:18:39,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:40,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:40,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:40,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 12:18:40,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:40,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 12:18:40,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:40,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:40,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:40,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 12:18:40,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:40,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 12:18:40,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:40,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:40,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:40,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:40,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:40,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:18:40,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:40,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:40,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:40,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:40,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:40,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:40,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69684433] [2020-09-25 12:18:40,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:40,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:40,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969890509] [2020-09-25 12:18:40,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:40,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:40,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:40,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:40,408 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 3 states. [2020-09-25 12:18:40,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:40,501 INFO L93 Difference]: Finished difference Result 213 states and 291 transitions. [2020-09-25 12:18:40,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:40,506 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-09-25 12:18:40,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:40,539 INFO L225 Difference]: With dead ends: 213 [2020-09-25 12:18:40,540 INFO L226 Difference]: Without dead ends: 144 [2020-09-25 12:18:40,546 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 12:18:40,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-25 12:18:40,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2020-09-25 12:18:40,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-25 12:18:40,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 186 transitions. [2020-09-25 12:18:40,653 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 186 transitions. Word has length 61 [2020-09-25 12:18:40,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:40,654 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 186 transitions. [2020-09-25 12:18:40,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:40,654 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 186 transitions. [2020-09-25 12:18:40,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 12:18:40,661 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:40,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:40,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:18:40,663 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:40,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:40,664 INFO L82 PathProgramCache]: Analyzing trace with hash 16380224, now seen corresponding path program 1 times [2020-09-25 12:18:40,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:40,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [767089964] [2020-09-25 12:18:40,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:40,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:40,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:40,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 12:18:40,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:40,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 12:18:40,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:40,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:40,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:40,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 12:18:40,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:18:40,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:18:40,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:40,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:40,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:40,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:40,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:40,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:40,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:40,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:40,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:40,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:40,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:40,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:40,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:40,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [767089964] [2020-09-25 12:18:40,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:40,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:40,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723402485] [2020-09-25 12:18:40,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:40,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:40,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:40,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:40,908 INFO L87 Difference]: Start difference. First operand 142 states and 186 transitions. Second operand 3 states. [2020-09-25 12:18:40,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:40,932 INFO L93 Difference]: Finished difference Result 173 states and 229 transitions. [2020-09-25 12:18:40,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:40,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-09-25 12:18:40,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:40,936 INFO L225 Difference]: With dead ends: 173 [2020-09-25 12:18:40,937 INFO L226 Difference]: Without dead ends: 171 [2020-09-25 12:18:40,938 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 12:18:40,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-09-25 12:18:40,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 142. [2020-09-25 12:18:40,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-25 12:18:40,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 185 transitions. [2020-09-25 12:18:40,955 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 185 transitions. Word has length 62 [2020-09-25 12:18:40,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:40,956 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 185 transitions. [2020-09-25 12:18:40,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:40,956 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 185 transitions. [2020-09-25 12:18:40,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 12:18:40,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:40,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:40,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:18:40,959 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:40,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:40,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1707628474, now seen corresponding path program 1 times [2020-09-25 12:18:40,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:40,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806881376] [2020-09-25 12:18:40,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 12:18:41,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 12:18:41,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:41,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 12:18:41,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:41,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:41,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:41,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:18:41,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:41,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:41,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:41,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:41,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806881376] [2020-09-25 12:18:41,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:41,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:41,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461511144] [2020-09-25 12:18:41,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:41,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:41,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:41,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,102 INFO L87 Difference]: Start difference. First operand 142 states and 185 transitions. Second operand 3 states. [2020-09-25 12:18:41,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:41,125 INFO L93 Difference]: Finished difference Result 346 states and 473 transitions. [2020-09-25 12:18:41,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:41,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-09-25 12:18:41,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:41,128 INFO L225 Difference]: With dead ends: 346 [2020-09-25 12:18:41,128 INFO L226 Difference]: Without dead ends: 241 [2020-09-25 12:18:41,130 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 12:18:41,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-09-25 12:18:41,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 239. [2020-09-25 12:18:41,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-25 12:18:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 320 transitions. [2020-09-25 12:18:41,146 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 320 transitions. Word has length 62 [2020-09-25 12:18:41,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:41,147 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 320 transitions. [2020-09-25 12:18:41,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:41,147 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 320 transitions. [2020-09-25 12:18:41,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 12:18:41,149 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:41,149 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 12:18:41,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:18:41,150 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:41,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:41,151 INFO L82 PathProgramCache]: Analyzing trace with hash -298745719, now seen corresponding path program 1 times [2020-09-25 12:18:41,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:41,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099997488] [2020-09-25 12:18:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 12:18:41,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 12:18:41,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:41,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 12:18:41,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:18:41,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:41,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:41,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:41,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:41,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:41,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:41,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099997488] [2020-09-25 12:18:41,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:41,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:41,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277881272] [2020-09-25 12:18:41,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:41,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:41,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:41,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,284 INFO L87 Difference]: Start difference. First operand 239 states and 320 transitions. Second operand 3 states. [2020-09-25 12:18:41,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:41,308 INFO L93 Difference]: Finished difference Result 293 states and 396 transitions. [2020-09-25 12:18:41,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:41,309 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-09-25 12:18:41,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:41,314 INFO L225 Difference]: With dead ends: 293 [2020-09-25 12:18:41,314 INFO L226 Difference]: Without dead ends: 291 [2020-09-25 12:18:41,315 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 12:18:41,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-09-25 12:18:41,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 239. [2020-09-25 12:18:41,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-25 12:18:41,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 318 transitions. [2020-09-25 12:18:41,339 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 318 transitions. Word has length 63 [2020-09-25 12:18:41,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:41,340 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 318 transitions. [2020-09-25 12:18:41,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:41,340 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 318 transitions. [2020-09-25 12:18:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 12:18:41,341 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:41,342 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 12:18:41,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:18:41,342 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:41,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:41,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1397120136, now seen corresponding path program 1 times [2020-09-25 12:18:41,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:41,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [497162800] [2020-09-25 12:18:41,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 12:18:41,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 12:18:41,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:41,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 12:18:41,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:41,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:41,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:41,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:41,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:41,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [497162800] [2020-09-25 12:18:41,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:41,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:41,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646394711] [2020-09-25 12:18:41,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:41,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:41,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:41,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,445 INFO L87 Difference]: Start difference. First operand 239 states and 318 transitions. Second operand 3 states. [2020-09-25 12:18:41,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:41,467 INFO L93 Difference]: Finished difference Result 631 states and 864 transitions. [2020-09-25 12:18:41,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:41,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-09-25 12:18:41,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:41,470 INFO L225 Difference]: With dead ends: 631 [2020-09-25 12:18:41,471 INFO L226 Difference]: Without dead ends: 429 [2020-09-25 12:18:41,473 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 12:18:41,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-25 12:18:41,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 427. [2020-09-25 12:18:41,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-09-25 12:18:41,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 574 transitions. [2020-09-25 12:18:41,489 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 574 transitions. Word has length 63 [2020-09-25 12:18:41,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:41,490 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 574 transitions. [2020-09-25 12:18:41,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:41,490 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 574 transitions. [2020-09-25 12:18:41,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 12:18:41,493 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:41,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:41,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:18:41,494 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:41,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:41,494 INFO L82 PathProgramCache]: Analyzing trace with hash 361296622, now seen corresponding path program 1 times [2020-09-25 12:18:41,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:41,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538130460] [2020-09-25 12:18:41,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 12:18:41,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 12:18:41,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:41,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 12:18:41,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:41,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:41,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:41,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:41,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:41,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:41,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:41,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538130460] [2020-09-25 12:18:41,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:41,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:41,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947061073] [2020-09-25 12:18:41,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:41,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:41,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:41,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,604 INFO L87 Difference]: Start difference. First operand 427 states and 574 transitions. Second operand 3 states. [2020-09-25 12:18:41,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:41,639 INFO L93 Difference]: Finished difference Result 1183 states and 1616 transitions. [2020-09-25 12:18:41,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:41,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-09-25 12:18:41,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:41,645 INFO L225 Difference]: With dead ends: 1183 [2020-09-25 12:18:41,645 INFO L226 Difference]: Without dead ends: 793 [2020-09-25 12:18:41,650 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 12:18:41,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2020-09-25 12:18:41,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 791. [2020-09-25 12:18:41,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-25 12:18:41,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1062 transitions. [2020-09-25 12:18:41,693 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1062 transitions. Word has length 64 [2020-09-25 12:18:41,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:41,695 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1062 transitions. [2020-09-25 12:18:41,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:41,695 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1062 transitions. [2020-09-25 12:18:41,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 12:18:41,701 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:41,702 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 12:18:41,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:18:41,702 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:41,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:41,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1477714988, now seen corresponding path program 1 times [2020-09-25 12:18:41,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:41,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1939372763] [2020-09-25 12:18:41,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 12:18:41,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 12:18:41,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 12:18:41,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:18:41,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:41,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:41,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:41,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:41,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:41,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:41,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1939372763] [2020-09-25 12:18:41,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:41,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:41,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771194876] [2020-09-25 12:18:41,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:41,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:41,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:41,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:41,853 INFO L87 Difference]: Start difference. First operand 791 states and 1062 transitions. Second operand 3 states. [2020-09-25 12:18:41,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:41,882 INFO L93 Difference]: Finished difference Result 971 states and 1312 transitions. [2020-09-25 12:18:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:41,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-09-25 12:18:41,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:41,887 INFO L225 Difference]: With dead ends: 971 [2020-09-25 12:18:41,888 INFO L226 Difference]: Without dead ends: 969 [2020-09-25 12:18:41,888 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 12:18:41,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2020-09-25 12:18:41,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 791. [2020-09-25 12:18:41,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-25 12:18:41,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1054 transitions. [2020-09-25 12:18:41,911 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1054 transitions. Word has length 64 [2020-09-25 12:18:41,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:41,911 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1054 transitions. [2020-09-25 12:18:41,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:41,912 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1054 transitions. [2020-09-25 12:18:41,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 12:18:41,913 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:41,913 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 12:18:41,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:18:41,913 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:41,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:41,914 INFO L82 PathProgramCache]: Analyzing trace with hash 628943709, now seen corresponding path program 1 times [2020-09-25 12:18:41,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:41,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156938078] [2020-09-25 12:18:41,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 12:18:41,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 12:18:41,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:41,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 12:18:41,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:18:41,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:41,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:41,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:41,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:41,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:41,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:41,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:41,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:41,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:41,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:41,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:42,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:18:42,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:42,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156938078] [2020-09-25 12:18:42,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:42,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:42,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067080116] [2020-09-25 12:18:42,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:42,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:42,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:42,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,008 INFO L87 Difference]: Start difference. First operand 791 states and 1054 transitions. Second operand 3 states. [2020-09-25 12:18:42,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:42,033 INFO L93 Difference]: Finished difference Result 963 states and 1288 transitions. [2020-09-25 12:18:42,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:42,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-09-25 12:18:42,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:42,039 INFO L225 Difference]: With dead ends: 963 [2020-09-25 12:18:42,039 INFO L226 Difference]: Without dead ends: 961 [2020-09-25 12:18:42,040 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 12:18:42,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2020-09-25 12:18:42,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 791. [2020-09-25 12:18:42,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-25 12:18:42,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1046 transitions. [2020-09-25 12:18:42,063 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1046 transitions. Word has length 65 [2020-09-25 12:18:42,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:42,064 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1046 transitions. [2020-09-25 12:18:42,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:42,064 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1046 transitions. [2020-09-25 12:18:42,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 12:18:42,065 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:42,065 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 12:18:42,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 12:18:42,066 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:42,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:42,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1684460868, now seen corresponding path program 1 times [2020-09-25 12:18:42,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:42,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112231425] [2020-09-25 12:18:42,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 12:18:42,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 12:18:42,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:42,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 12:18:42,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:42,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:42,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:42,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:42,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:42,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:42,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:42,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:42,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:42,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112231425] [2020-09-25 12:18:42,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:42,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:42,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890273498] [2020-09-25 12:18:42,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:42,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:42,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:42,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,159 INFO L87 Difference]: Start difference. First operand 791 states and 1046 transitions. Second operand 3 states. [2020-09-25 12:18:42,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:42,187 INFO L93 Difference]: Finished difference Result 2251 states and 3000 transitions. [2020-09-25 12:18:42,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:42,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-09-25 12:18:42,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:42,194 INFO L225 Difference]: With dead ends: 2251 [2020-09-25 12:18:42,195 INFO L226 Difference]: Without dead ends: 1497 [2020-09-25 12:18:42,197 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 12:18:42,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2020-09-25 12:18:42,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1495. [2020-09-25 12:18:42,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-09-25 12:18:42,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1958 transitions. [2020-09-25 12:18:42,230 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1958 transitions. Word has length 65 [2020-09-25 12:18:42,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:42,231 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 1958 transitions. [2020-09-25 12:18:42,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:42,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1958 transitions. [2020-09-25 12:18:42,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-25 12:18:42,233 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:42,233 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 12:18:42,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 12:18:42,233 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:42,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:42,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1510854248, now seen corresponding path program 1 times [2020-09-25 12:18:42,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:42,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157201787] [2020-09-25 12:18:42,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 12:18:42,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 12:18:42,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:42,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 12:18:42,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:18:42,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:42,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:42,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:42,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:42,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:42,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:42,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:42,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:42,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [157201787] [2020-09-25 12:18:42,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:42,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:42,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262471311] [2020-09-25 12:18:42,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:42,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:42,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:42,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,338 INFO L87 Difference]: Start difference. First operand 1495 states and 1958 transitions. Second operand 3 states. [2020-09-25 12:18:42,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:42,362 INFO L93 Difference]: Finished difference Result 1803 states and 2360 transitions. [2020-09-25 12:18:42,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:42,362 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-09-25 12:18:42,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:42,370 INFO L225 Difference]: With dead ends: 1803 [2020-09-25 12:18:42,370 INFO L226 Difference]: Without dead ends: 1801 [2020-09-25 12:18:42,371 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 12:18:42,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2020-09-25 12:18:42,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1495. [2020-09-25 12:18:42,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-09-25 12:18:42,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1942 transitions. [2020-09-25 12:18:42,419 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1942 transitions. Word has length 66 [2020-09-25 12:18:42,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:42,420 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 1942 transitions. [2020-09-25 12:18:42,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:42,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1942 transitions. [2020-09-25 12:18:42,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-25 12:18:42,421 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:42,422 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 12:18:42,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 12:18:42,422 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:42,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:42,422 INFO L82 PathProgramCache]: Analyzing trace with hash -678433246, now seen corresponding path program 1 times [2020-09-25 12:18:42,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:42,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327051986] [2020-09-25 12:18:42,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 12:18:42,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 12:18:42,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:42,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 12:18:42,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:42,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:42,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:42,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:42,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:42,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:42,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:42,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:42,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327051986] [2020-09-25 12:18:42,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:42,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:42,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117370826] [2020-09-25 12:18:42,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:42,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:42,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:42,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,503 INFO L87 Difference]: Start difference. First operand 1495 states and 1942 transitions. Second operand 3 states. [2020-09-25 12:18:42,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:42,543 INFO L93 Difference]: Finished difference Result 4315 states and 5624 transitions. [2020-09-25 12:18:42,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:42,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-09-25 12:18:42,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:42,555 INFO L225 Difference]: With dead ends: 4315 [2020-09-25 12:18:42,556 INFO L226 Difference]: Without dead ends: 2857 [2020-09-25 12:18:42,559 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 12:18:42,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2020-09-25 12:18:42,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2855. [2020-09-25 12:18:42,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states. [2020-09-25 12:18:42,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3654 transitions. [2020-09-25 12:18:42,624 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3654 transitions. Word has length 66 [2020-09-25 12:18:42,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:42,624 INFO L479 AbstractCegarLoop]: Abstraction has 2855 states and 3654 transitions. [2020-09-25 12:18:42,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:42,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3654 transitions. [2020-09-25 12:18:42,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 12:18:42,627 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:42,627 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, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:42,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 12:18:42,627 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:42,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:42,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1214689743, now seen corresponding path program 1 times [2020-09-25 12:18:42,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:42,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109652590] [2020-09-25 12:18:42,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 12:18:42,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 12:18:42,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 12:18:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:18:42,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:42,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:42,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:42,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:42,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:42,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:42,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:42,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:42,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1109652590] [2020-09-25 12:18:42,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:42,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:42,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089112017] [2020-09-25 12:18:42,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:42,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:42,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:42,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,710 INFO L87 Difference]: Start difference. First operand 2855 states and 3654 transitions. Second operand 3 states. [2020-09-25 12:18:42,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:42,744 INFO L93 Difference]: Finished difference Result 3403 states and 4328 transitions. [2020-09-25 12:18:42,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:42,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-09-25 12:18:42,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:42,758 INFO L225 Difference]: With dead ends: 3403 [2020-09-25 12:18:42,759 INFO L226 Difference]: Without dead ends: 3401 [2020-09-25 12:18:42,760 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 12:18:42,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2020-09-25 12:18:42,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 2855. [2020-09-25 12:18:42,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states. [2020-09-25 12:18:42,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3622 transitions. [2020-09-25 12:18:42,827 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3622 transitions. Word has length 67 [2020-09-25 12:18:42,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:42,828 INFO L479 AbstractCegarLoop]: Abstraction has 2855 states and 3622 transitions. [2020-09-25 12:18:42,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:42,828 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3622 transitions. [2020-09-25 12:18:42,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 12:18:42,830 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:42,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:42,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 12:18:42,831 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:42,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:42,831 INFO L82 PathProgramCache]: Analyzing trace with hash 443652336, now seen corresponding path program 1 times [2020-09-25 12:18:42,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:42,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685401414] [2020-09-25 12:18:42,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 12:18:42,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 12:18:42,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:42,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 12:18:42,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:42,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:42,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:42,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:42,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:42,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:42,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:42,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:42,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:42,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685401414] [2020-09-25 12:18:42,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:42,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:42,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404608053] [2020-09-25 12:18:42,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:42,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:42,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:42,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,943 INFO L87 Difference]: Start difference. First operand 2855 states and 3622 transitions. Second operand 3 states. [2020-09-25 12:18:43,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:43,007 INFO L93 Difference]: Finished difference Result 8299 states and 10536 transitions. [2020-09-25 12:18:43,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:43,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-09-25 12:18:43,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:43,036 INFO L225 Difference]: With dead ends: 8299 [2020-09-25 12:18:43,037 INFO L226 Difference]: Without dead ends: 5481 [2020-09-25 12:18:43,043 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 12:18:43,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5481 states. [2020-09-25 12:18:43,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5481 to 5479. [2020-09-25 12:18:43,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-25 12:18:43,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6822 transitions. [2020-09-25 12:18:43,191 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6822 transitions. Word has length 67 [2020-09-25 12:18:43,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:43,192 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6822 transitions. [2020-09-25 12:18:43,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:43,192 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6822 transitions. [2020-09-25 12:18:43,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-25 12:18:43,195 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:43,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:43,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 12:18:43,196 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:43,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:43,196 INFO L82 PathProgramCache]: Analyzing trace with hash 192792828, now seen corresponding path program 1 times [2020-09-25 12:18:43,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:43,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360307556] [2020-09-25 12:18:43,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:43,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:43,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 12:18:43,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:43,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 12:18:43,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:43,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:43,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:43,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 12:18:43,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:18:43,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:43,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:43,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:43,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:43,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:43,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:43,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:43,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:43,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:43,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:43,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:43,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:43,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:43,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360307556] [2020-09-25 12:18:43,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:43,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:43,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553838760] [2020-09-25 12:18:43,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:43,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:43,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:43,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:43,288 INFO L87 Difference]: Start difference. First operand 5479 states and 6822 transitions. Second operand 3 states. [2020-09-25 12:18:43,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:43,348 INFO L93 Difference]: Finished difference Result 6443 states and 7912 transitions. [2020-09-25 12:18:43,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:43,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-09-25 12:18:43,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:43,374 INFO L225 Difference]: With dead ends: 6443 [2020-09-25 12:18:43,375 INFO L226 Difference]: Without dead ends: 6441 [2020-09-25 12:18:43,378 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 12:18:43,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6441 states. [2020-09-25 12:18:43,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6441 to 5479. [2020-09-25 12:18:43,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-25 12:18:43,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6758 transitions. [2020-09-25 12:18:43,548 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6758 transitions. Word has length 68 [2020-09-25 12:18:43,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:43,548 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6758 transitions. [2020-09-25 12:18:43,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:43,549 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6758 transitions. [2020-09-25 12:18:43,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-25 12:18:43,552 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:43,553 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 12:18:43,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 12:18:43,553 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:43,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:43,553 INFO L82 PathProgramCache]: Analyzing trace with hash 868567382, now seen corresponding path program 1 times [2020-09-25 12:18:43,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:43,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [943685513] [2020-09-25 12:18:43,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:43,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:43,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 12:18:43,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:43,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 12:18:43,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:43,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:43,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:43,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 12:18:43,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:43,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:43,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:43,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:43,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:43,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:43,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:43,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:43,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:43,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:43,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:43,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:43,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [943685513] [2020-09-25 12:18:43,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:43,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:43,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190006815] [2020-09-25 12:18:43,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:43,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:43,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:43,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:43,636 INFO L87 Difference]: Start difference. First operand 5479 states and 6758 transitions. Second operand 3 states. [2020-09-25 12:18:43,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:43,746 INFO L93 Difference]: Finished difference Result 15977 states and 19687 transitions. [2020-09-25 12:18:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:43,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-09-25 12:18:43,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:43,767 INFO L225 Difference]: With dead ends: 15977 [2020-09-25 12:18:43,767 INFO L226 Difference]: Without dead ends: 5479 [2020-09-25 12:18:43,784 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 12:18:43,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2020-09-25 12:18:43,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2020-09-25 12:18:43,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-25 12:18:43,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6502 transitions. [2020-09-25 12:18:43,875 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6502 transitions. Word has length 68 [2020-09-25 12:18:43,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:43,876 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6502 transitions. [2020-09-25 12:18:43,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:43,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6502 transitions. [2020-09-25 12:18:43,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 12:18:43,879 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:43,880 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 12:18:43,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 12:18:43,880 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:43,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:43,880 INFO L82 PathProgramCache]: Analyzing trace with hash 875079941, now seen corresponding path program 1 times [2020-09-25 12:18:43,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:43,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91394903] [2020-09-25 12:18:43,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:43,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:43,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 12:18:43,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:43,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 12:18:43,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:43,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:43,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:43,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-25 12:18:43,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:18:43,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:43,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:43,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:43,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:43,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:43,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:43,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:43,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:43,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:43,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:43,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:43,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:43,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:43,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91394903] [2020-09-25 12:18:43,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:43,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:43,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532196484] [2020-09-25 12:18:43,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:43,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:43,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:43,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:43,962 INFO L87 Difference]: Start difference. First operand 5479 states and 6502 transitions. Second operand 3 states. [2020-09-25 12:18:43,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:43,997 INFO L93 Difference]: Finished difference Result 5479 states and 6502 transitions. [2020-09-25 12:18:43,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:43,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-09-25 12:18:43,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:43,999 INFO L225 Difference]: With dead ends: 5479 [2020-09-25 12:18:43,999 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 12:18:44,006 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 12:18:44,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 12:18:44,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 12:18:44,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 12:18:44,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 12:18:44,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2020-09-25 12:18:44,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:44,008 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 12:18:44,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:44,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 12:18:44,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 12:18:44,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 12:18:44,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 12:18:44,077 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 12:18:44,077 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 12:18:44,077 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 12:18:44,077 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 12:18:44,077 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 12:18:44,077 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 12:18:44,077 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-09-25 12:18:44,078 INFO L264 CegarLoopResult]: At program point L126-1(lines 5 135) the Hoare annotation is: false [2020-09-25 12:18:44,078 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 12:18:44,078 INFO L268 CegarLoopResult]: For program point L60-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 12:18:44,078 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 12:18:44,078 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 12:18:44,078 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 135) no Hoare annotation was computed. [2020-09-25 12:18:44,078 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-25 12:18:44,078 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-25 12:18:44,079 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 12:18:44,079 INFO L268 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-09-25 12:18:44,079 INFO L268 CegarLoopResult]: For program point L110-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 12:18:44,079 INFO L268 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-09-25 12:18:44,079 INFO L268 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-09-25 12:18:44,079 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-25 12:18:44,079 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-25 12:18:44,080 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-25 12:18:44,080 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 12:18:44,080 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-09-25 12:18:44,080 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 12:18:44,080 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 12:18:44,080 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 12:18:44,080 INFO L268 CegarLoopResult]: For program point L95-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 12:18:44,080 INFO L268 CegarLoopResult]: For program point L120-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 12:18:44,081 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 12:18:44,081 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 12:18:44,081 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-25 12:18:44,081 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-25 12:18:44,081 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-25 12:18:44,081 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 12:18:44,081 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 135) no Hoare annotation was computed. [2020-09-25 12:18:44,081 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-25 12:18:44,082 INFO L268 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-09-25 12:18:44,082 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed. [2020-09-25 12:18:44,082 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 135) the Hoare annotation is: true [2020-09-25 12:18:44,082 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-25 12:18:44,082 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 12:18:44,082 INFO L268 CegarLoopResult]: For program point L80-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 12:18:44,082 INFO L268 CegarLoopResult]: For program point L105-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 12:18:44,083 INFO L268 CegarLoopResult]: For program point L72-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 12:18:44,083 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 12:18:44,083 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 12:18:44,083 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-25 12:18:44,083 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 12:18:44,083 INFO L268 CegarLoopResult]: For program point L64-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 12:18:44,083 INFO L268 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-09-25 12:18:44,083 INFO L268 CegarLoopResult]: For program point L56(lines 56 58) no Hoare annotation was computed. [2020-09-25 12:18:44,083 INFO L268 CegarLoopResult]: For program point L56-2(lines 33 130) no Hoare annotation was computed. [2020-09-25 12:18:44,084 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-09-25 12:18:44,084 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-09-25 12:18:44,084 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 12:18:44,084 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 12:18:44,084 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 12:18:44,084 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-25 12:18:44,084 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-25 12:18:44,084 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-25 12:18:44,084 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 12:18:44,085 INFO L271 CegarLoopResult]: At program point L131(lines 5 135) the Hoare annotation is: true [2020-09-25 12:18:44,085 INFO L268 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-09-25 12:18:44,085 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-25 12:18:44,085 INFO L268 CegarLoopResult]: For program point L90-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 12:18:44,085 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 12:18:44,085 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 12:18:44,085 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 12:18:44,086 INFO L268 CegarLoopResult]: For program point L115-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 12:18:44,086 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 12:18:44,086 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-25 12:18:44,086 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-25 12:18:44,086 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 12:18:44,086 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-25 12:18:44,086 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-25 12:18:44,086 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-25 12:18:44,087 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 12:18:44,087 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 12:18:44,087 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 12:18:44,087 INFO L268 CegarLoopResult]: For program point L100-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 12:18:44,087 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 12:18:44,087 INFO L268 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-09-25 12:18:44,087 INFO L268 CegarLoopResult]: For program point L34-2(line 34) no Hoare annotation was computed. [2020-09-25 12:18:44,087 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-25 12:18:44,088 INFO L271 CegarLoopResult]: At program point L125-1(lines 33 130) the Hoare annotation is: true [2020-09-25 12:18:44,088 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-09-25 12:18:44,088 INFO L268 CegarLoopResult]: For program point L84-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 12:18:44,088 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 12:18:44,088 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 12:18:44,088 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 12:18:44,088 INFO L268 CegarLoopResult]: For program point L76-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 12:18:44,088 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 12:18:44,089 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-25 12:18:44,089 INFO L268 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-09-25 12:18:44,089 INFO L268 CegarLoopResult]: For program point L35(lines 35 37) no Hoare annotation was computed. [2020-09-25 12:18:44,089 INFO L268 CegarLoopResult]: For program point L68-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 12:18:44,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:18:44 BoogieIcfgContainer [2020-09-25 12:18:44,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:18:44,106 INFO L168 Benchmark]: Toolchain (without parser) took 5351.47 ms. Allocated memory was 141.0 MB in the beginning and 335.0 MB in the end (delta: 194.0 MB). Free memory was 102.8 MB in the beginning and 284.3 MB in the end (delta: -181.4 MB). Peak memory consumption was 164.4 MB. Max. memory is 7.1 GB. [2020-09-25 12:18:44,107 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-25 12:18:44,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.66 ms. Allocated memory is still 141.0 MB. Free memory was 102.4 MB in the beginning and 92.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-25 12:18:44,108 INFO L168 Benchmark]: Boogie Preprocessor took 123.19 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 92.0 MB in the beginning and 181.5 MB in the end (delta: -89.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-25 12:18:44,109 INFO L168 Benchmark]: RCFGBuilder took 433.71 ms. Allocated memory is still 203.9 MB. Free memory was 181.5 MB in the beginning and 159.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-09-25 12:18:44,110 INFO L168 Benchmark]: TraceAbstraction took 4421.39 ms. Allocated memory was 203.9 MB in the beginning and 335.0 MB in the end (delta: 131.1 MB). Free memory was 159.5 MB in the beginning and 284.3 MB in the end (delta: -124.8 MB). Peak memory consumption was 158.2 MB. Max. memory is 7.1 GB. [2020-09-25 12:18:44,113 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 363.66 ms. Allocated memory is still 141.0 MB. Free memory was 102.4 MB in the beginning and 92.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.19 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 92.0 MB in the beginning and 181.5 MB in the end (delta: -89.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 433.71 ms. Allocated memory is still 203.9 MB. Free memory was 181.5 MB in the beginning and 159.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4421.39 ms. Allocated memory was 203.9 MB in the beginning and 335.0 MB in the end (delta: 131.1 MB). Free memory was 159.5 MB in the beginning and 284.3 MB in the end (delta: -124.8 MB). Peak memory consumption was 158.2 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: 4.2s, 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, 0.1s 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: 0.8s 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, 0.2s SatisfiabilityAnalysisTime, 1.7s 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...