/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --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 08:57:19,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:57:19,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:57:19,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:57:19,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:57:19,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:57:19,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:57:19,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:57:19,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:57:19,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:57:19,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:57:19,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:57:19,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:57:19,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:57:19,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:57:19,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:57:19,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:57:19,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:57:19,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:57:19,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:57:19,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:57:19,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:57:19,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:57:19,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:57:19,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:57:19,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:57:19,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:57:19,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:57:19,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:57:19,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:57:19,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:57:19,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:57:19,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:57:19,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:57:19,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:57:19,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:57:19,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:57:19,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:57:19,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:57:19,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:57:19,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:57:19,255 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 08:57:19,280 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:57:19,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:57:19,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:57:19,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:57:19,282 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:57:19,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:57:19,282 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:57:19,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:57:19,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:57:19,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:57:19,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:57:19,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:57:19,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:57:19,284 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:57:19,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:57:19,284 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:57:19,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:57:19,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:57:19,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:57:19,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:57:19,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:57:19,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:57:19,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:57:19,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:57:19,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:57:19,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:57:19,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:57:19,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:57:19,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:57:19,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:57:19,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:57:19,755 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:57:19,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:57:19,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:57:19,762 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:57:19,763 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_8.c [2020-09-25 08:57:19,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dac4cd877/cf8f9d94d2f248699058851c1a295ae5/FLAG780d89a9f [2020-09-25 08:57:20,394 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:57:20,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_8.c [2020-09-25 08:57:20,405 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dac4cd877/cf8f9d94d2f248699058851c1a295ae5/FLAG780d89a9f [2020-09-25 08:57:20,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dac4cd877/cf8f9d94d2f248699058851c1a295ae5 [2020-09-25 08:57:20,758 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:57:20,764 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:57:20,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:57:20,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:57:20,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:57:20,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:57:20" (1/1) ... [2020-09-25 08:57:20,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1058f97b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:20, skipping insertion in model container [2020-09-25 08:57:20,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:57:20" (1/1) ... [2020-09-25 08:57:20,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:57:20,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:57:21,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:57:21,048 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:57:21,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:57:21,095 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:57:21,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:21 WrapperNode [2020-09-25 08:57:21,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:57:21,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:57:21,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:57:21,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:57:21,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:21" (1/1) ... [2020-09-25 08:57:21,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:21" (1/1) ... [2020-09-25 08:57:21,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:21" (1/1) ... [2020-09-25 08:57:21,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:21" (1/1) ... [2020-09-25 08:57:21,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:21" (1/1) ... [2020-09-25 08:57:21,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:21" (1/1) ... [2020-09-25 08:57:21,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:21" (1/1) ... [2020-09-25 08:57:21,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:57:21,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:57:21,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:57:21,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:57:21,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:21" (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 08:57:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:57:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:57:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:57:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:57:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:57:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:57:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:57:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:57:21,739 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:57:21,739 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 08:57:21,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:57:21 BoogieIcfgContainer [2020-09-25 08:57:21,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:57:21,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:57:21,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:57:21,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:57:21,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:57:20" (1/3) ... [2020-09-25 08:57:21,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8d406d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:57:21, skipping insertion in model container [2020-09-25 08:57:21,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:21" (2/3) ... [2020-09-25 08:57:21,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8d406d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:57:21, skipping insertion in model container [2020-09-25 08:57:21,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:57:21" (3/3) ... [2020-09-25 08:57:21,756 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_8.c [2020-09-25 08:57:21,767 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:57:21,779 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:57:21,801 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:57:21,834 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:57:21,835 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:57:21,835 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:57:21,835 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:57:21,835 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:57:21,836 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:57:21,836 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:57:21,836 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:57:21,861 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-09-25 08:57:21,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 08:57:21,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:21,875 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 08:57:21,876 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:21,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:21,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1717644884, now seen corresponding path program 1 times [2020-09-25 08:57:21,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:21,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974915064] [2020-09-25 08:57:21,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:22,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:22,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:22,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 08:57:22,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:22,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 08:57:22,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:22,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:22,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:22,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 08:57:22,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:57:22,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:57:22,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:22,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:22,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:22,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:22,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:22,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:57:22,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:22,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:22,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:22,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:22,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:22,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:22,430 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 08:57:22,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974915064] [2020-09-25 08:57:22,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:22,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:22,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63646584] [2020-09-25 08:57:22,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:22,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:22,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:22,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:22,465 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 3 states. [2020-09-25 08:57:22,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:22,543 INFO L93 Difference]: Finished difference Result 213 states and 291 transitions. [2020-09-25 08:57:22,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:22,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-09-25 08:57:22,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:22,563 INFO L225 Difference]: With dead ends: 213 [2020-09-25 08:57:22,563 INFO L226 Difference]: Without dead ends: 144 [2020-09-25 08:57:22,568 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 08:57:22,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-25 08:57:22,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2020-09-25 08:57:22,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-25 08:57:22,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 186 transitions. [2020-09-25 08:57:22,634 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 186 transitions. Word has length 61 [2020-09-25 08:57:22,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:22,635 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 186 transitions. [2020-09-25 08:57:22,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:22,635 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 186 transitions. [2020-09-25 08:57:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 08:57:22,637 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:22,638 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 08:57:22,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:57:22,638 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:22,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:22,639 INFO L82 PathProgramCache]: Analyzing trace with hash 16380224, now seen corresponding path program 1 times [2020-09-25 08:57:22,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:22,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549425960] [2020-09-25 08:57:22,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:22,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:22,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:22,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 08:57:22,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:22,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 08:57:22,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:22,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:22,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:22,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 08:57:22,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:57:22,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:22,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:22,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:22,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:22,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:22,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:22,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:57:22,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:22,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:22,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:22,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:57:22,833 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 08:57:22,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549425960] [2020-09-25 08:57:22,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:22,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:22,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550835506] [2020-09-25 08:57:22,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:22,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:22,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:22,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:22,841 INFO L87 Difference]: Start difference. First operand 142 states and 186 transitions. Second operand 3 states. [2020-09-25 08:57:22,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:22,893 INFO L93 Difference]: Finished difference Result 173 states and 229 transitions. [2020-09-25 08:57:22,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:22,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-09-25 08:57:22,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:22,900 INFO L225 Difference]: With dead ends: 173 [2020-09-25 08:57:22,901 INFO L226 Difference]: Without dead ends: 171 [2020-09-25 08:57:22,902 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 08:57:22,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-09-25 08:57:22,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 142. [2020-09-25 08:57:22,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-25 08:57:22,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 185 transitions. [2020-09-25 08:57:22,917 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 185 transitions. Word has length 62 [2020-09-25 08:57:22,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:22,918 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 185 transitions. [2020-09-25 08:57:22,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:22,918 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 185 transitions. [2020-09-25 08:57:22,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 08:57:22,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:22,921 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 08:57:22,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:57:22,922 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:22,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:22,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1707628474, now seen corresponding path program 1 times [2020-09-25 08:57:22,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:22,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097607916] [2020-09-25 08:57:22,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:22,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:23,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:23,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 08:57:23,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:23,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 08:57:23,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:23,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:23,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:23,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 08:57:23,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:57:23,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:23,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:23,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:23,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:23,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:23,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:23,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:57:23,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:23,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:23,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:23,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:23,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:23,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:23,102 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 08:57:23,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097607916] [2020-09-25 08:57:23,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:23,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:23,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068867522] [2020-09-25 08:57:23,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:23,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:23,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:23,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:23,105 INFO L87 Difference]: Start difference. First operand 142 states and 185 transitions. Second operand 3 states. [2020-09-25 08:57:23,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:23,128 INFO L93 Difference]: Finished difference Result 346 states and 473 transitions. [2020-09-25 08:57:23,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:23,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-09-25 08:57:23,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:23,132 INFO L225 Difference]: With dead ends: 346 [2020-09-25 08:57:23,132 INFO L226 Difference]: Without dead ends: 241 [2020-09-25 08:57:23,133 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 08:57:23,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-09-25 08:57:23,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 239. [2020-09-25 08:57:23,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-25 08:57:23,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 320 transitions. [2020-09-25 08:57:23,154 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 320 transitions. Word has length 62 [2020-09-25 08:57:23,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:23,155 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 320 transitions. [2020-09-25 08:57:23,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:23,155 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 320 transitions. [2020-09-25 08:57:23,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 08:57:23,158 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:23,158 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 08:57:23,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:57:23,158 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:23,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:23,159 INFO L82 PathProgramCache]: Analyzing trace with hash -298745719, now seen corresponding path program 1 times [2020-09-25 08:57:23,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:23,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215800171] [2020-09-25 08:57:23,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:23,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:23,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:23,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 08:57:23,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:23,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 08:57:23,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:23,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:23,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:23,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 08:57:23,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:57:23,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:23,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:23,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:23,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:23,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:23,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:23,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:57:23,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:23,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:23,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:23,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:23,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:23,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:23,269 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 08:57:23,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215800171] [2020-09-25 08:57:23,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:23,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:23,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308282936] [2020-09-25 08:57:23,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:23,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:23,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:23,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:23,272 INFO L87 Difference]: Start difference. First operand 239 states and 320 transitions. Second operand 3 states. [2020-09-25 08:57:23,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:23,291 INFO L93 Difference]: Finished difference Result 293 states and 396 transitions. [2020-09-25 08:57:23,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:23,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-09-25 08:57:23,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:23,294 INFO L225 Difference]: With dead ends: 293 [2020-09-25 08:57:23,294 INFO L226 Difference]: Without dead ends: 291 [2020-09-25 08:57:23,295 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 08:57:23,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-09-25 08:57:23,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 239. [2020-09-25 08:57:23,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-25 08:57:23,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 318 transitions. [2020-09-25 08:57:23,310 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 318 transitions. Word has length 63 [2020-09-25 08:57:23,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:23,310 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 318 transitions. [2020-09-25 08:57:23,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:23,310 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 318 transitions. [2020-09-25 08:57:23,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 08:57:23,313 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:23,313 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 08:57:23,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:57:23,313 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:23,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:23,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1397120136, now seen corresponding path program 1 times [2020-09-25 08:57:23,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:23,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [698155315] [2020-09-25 08:57:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:23,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:23,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:23,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 08:57:23,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:23,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 08:57:23,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:23,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:23,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:23,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 08:57:23,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:57:23,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:23,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:23,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:23,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:23,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:23,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:23,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:57:23,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:23,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:23,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:23,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:23,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:23,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:23,467 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 08:57:23,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [698155315] [2020-09-25 08:57:23,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:23,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:23,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117990241] [2020-09-25 08:57:23,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:23,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:23,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:23,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:23,473 INFO L87 Difference]: Start difference. First operand 239 states and 318 transitions. Second operand 3 states. [2020-09-25 08:57:23,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:23,498 INFO L93 Difference]: Finished difference Result 631 states and 864 transitions. [2020-09-25 08:57:23,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:23,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-09-25 08:57:23,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:23,502 INFO L225 Difference]: With dead ends: 631 [2020-09-25 08:57:23,503 INFO L226 Difference]: Without dead ends: 429 [2020-09-25 08:57:23,506 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 08:57:23,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-25 08:57:23,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 427. [2020-09-25 08:57:23,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-09-25 08:57:23,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 574 transitions. [2020-09-25 08:57:23,542 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 574 transitions. Word has length 63 [2020-09-25 08:57:23,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:23,543 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 574 transitions. [2020-09-25 08:57:23,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:23,543 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 574 transitions. [2020-09-25 08:57:23,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 08:57:23,546 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:23,546 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 08:57:23,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:57:23,547 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:23,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:23,547 INFO L82 PathProgramCache]: Analyzing trace with hash 361296622, now seen corresponding path program 1 times [2020-09-25 08:57:23,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:23,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878750707] [2020-09-25 08:57:23,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:23,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:23,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:23,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 08:57:23,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:23,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 08:57:23,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:23,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:23,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:23,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 08:57:23,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:57:23,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:23,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:23,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:23,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:23,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:23,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:23,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:57:23,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:23,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:23,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:23,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:23,668 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 08:57:23,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878750707] [2020-09-25 08:57:23,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:23,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:23,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322647113] [2020-09-25 08:57:23,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:23,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:23,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:23,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:23,673 INFO L87 Difference]: Start difference. First operand 427 states and 574 transitions. Second operand 3 states. [2020-09-25 08:57:23,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:23,702 INFO L93 Difference]: Finished difference Result 1183 states and 1616 transitions. [2020-09-25 08:57:23,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:23,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-09-25 08:57:23,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:23,707 INFO L225 Difference]: With dead ends: 1183 [2020-09-25 08:57:23,707 INFO L226 Difference]: Without dead ends: 793 [2020-09-25 08:57:23,709 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 08:57:23,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2020-09-25 08:57:23,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 791. [2020-09-25 08:57:23,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-25 08:57:23,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1062 transitions. [2020-09-25 08:57:23,734 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1062 transitions. Word has length 64 [2020-09-25 08:57:23,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:23,735 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1062 transitions. [2020-09-25 08:57:23,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:23,735 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1062 transitions. [2020-09-25 08:57:23,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 08:57:23,738 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:23,738 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 08:57:23,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:57:23,739 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:23,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:23,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1477714988, now seen corresponding path program 1 times [2020-09-25 08:57:23,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:23,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481554731] [2020-09-25 08:57:23,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:23,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:23,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:23,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 08:57:23,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:23,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 08:57:23,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:23,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:23,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:23,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 08:57:23,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:57:23,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:23,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:23,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:23,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:23,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:23,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:23,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:57:23,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:23,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:23,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:23,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:23,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:23,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:23,844 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 08:57:23,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481554731] [2020-09-25 08:57:23,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:23,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:23,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964721694] [2020-09-25 08:57:23,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:23,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:23,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:23,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:23,847 INFO L87 Difference]: Start difference. First operand 791 states and 1062 transitions. Second operand 3 states. [2020-09-25 08:57:23,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:23,888 INFO L93 Difference]: Finished difference Result 971 states and 1312 transitions. [2020-09-25 08:57:23,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:23,889 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-09-25 08:57:23,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:23,896 INFO L225 Difference]: With dead ends: 971 [2020-09-25 08:57:23,896 INFO L226 Difference]: Without dead ends: 969 [2020-09-25 08:57:23,897 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 08:57:23,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2020-09-25 08:57:23,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 791. [2020-09-25 08:57:23,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-25 08:57:23,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1054 transitions. [2020-09-25 08:57:23,925 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1054 transitions. Word has length 64 [2020-09-25 08:57:23,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:23,925 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1054 transitions. [2020-09-25 08:57:23,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:23,926 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1054 transitions. [2020-09-25 08:57:23,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 08:57:23,927 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:23,927 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 08:57:23,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:57:23,928 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:23,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:23,928 INFO L82 PathProgramCache]: Analyzing trace with hash 628943709, now seen corresponding path program 1 times [2020-09-25 08:57:23,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:23,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621058854] [2020-09-25 08:57:23,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:23,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:23,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:23,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 08:57:23,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:23,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 08:57:23,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:23,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 08:57:23,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:57:23,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:24,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:24,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:24,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:24,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:24,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:24,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:57:24,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:24,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:24,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:24,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:24,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:24,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:24,017 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 08:57:24,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621058854] [2020-09-25 08:57:24,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:24,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:24,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070387728] [2020-09-25 08:57:24,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:24,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:24,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:24,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:24,020 INFO L87 Difference]: Start difference. First operand 791 states and 1054 transitions. Second operand 3 states. [2020-09-25 08:57:24,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:24,046 INFO L93 Difference]: Finished difference Result 963 states and 1288 transitions. [2020-09-25 08:57:24,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:24,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-09-25 08:57:24,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:24,052 INFO L225 Difference]: With dead ends: 963 [2020-09-25 08:57:24,052 INFO L226 Difference]: Without dead ends: 961 [2020-09-25 08:57:24,053 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 08:57:24,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2020-09-25 08:57:24,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 791. [2020-09-25 08:57:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-25 08:57:24,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1046 transitions. [2020-09-25 08:57:24,078 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1046 transitions. Word has length 65 [2020-09-25 08:57:24,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:24,078 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1046 transitions. [2020-09-25 08:57:24,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:24,078 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1046 transitions. [2020-09-25 08:57:24,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 08:57:24,080 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:24,080 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 08:57:24,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 08:57:24,080 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:24,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:24,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1684460868, now seen corresponding path program 1 times [2020-09-25 08:57:24,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:24,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691914573] [2020-09-25 08:57:24,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:24,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:24,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:24,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 08:57:24,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:24,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 08:57:24,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:24,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:24,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:24,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 08:57:24,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:57:24,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:24,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:24,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:24,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:24,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:24,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:24,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:57:24,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:24,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:24,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:24,170 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 08:57:24,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691914573] [2020-09-25 08:57:24,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:24,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:24,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164821434] [2020-09-25 08:57:24,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:24,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:24,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:24,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:24,173 INFO L87 Difference]: Start difference. First operand 791 states and 1046 transitions. Second operand 3 states. [2020-09-25 08:57:24,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:24,204 INFO L93 Difference]: Finished difference Result 2251 states and 3000 transitions. [2020-09-25 08:57:24,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:24,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-09-25 08:57:24,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:24,212 INFO L225 Difference]: With dead ends: 2251 [2020-09-25 08:57:24,212 INFO L226 Difference]: Without dead ends: 1497 [2020-09-25 08:57:24,214 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 08:57:24,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2020-09-25 08:57:24,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1495. [2020-09-25 08:57:24,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-09-25 08:57:24,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1958 transitions. [2020-09-25 08:57:24,252 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1958 transitions. Word has length 65 [2020-09-25 08:57:24,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:24,252 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 1958 transitions. [2020-09-25 08:57:24,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:24,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1958 transitions. [2020-09-25 08:57:24,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-25 08:57:24,254 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:24,254 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 08:57:24,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 08:57:24,255 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:24,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:24,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1510854248, now seen corresponding path program 1 times [2020-09-25 08:57:24,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:24,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [895921258] [2020-09-25 08:57:24,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:24,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:24,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:24,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 08:57:24,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:24,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 08:57:24,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:24,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:24,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 08:57:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:57:24,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:24,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:24,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:24,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:24,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:24,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:24,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:57:24,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:24,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:24,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:24,344 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 08:57:24,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [895921258] [2020-09-25 08:57:24,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:24,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:24,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375763909] [2020-09-25 08:57:24,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:24,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:24,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:24,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:24,347 INFO L87 Difference]: Start difference. First operand 1495 states and 1958 transitions. Second operand 3 states. [2020-09-25 08:57:24,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:24,373 INFO L93 Difference]: Finished difference Result 1803 states and 2360 transitions. [2020-09-25 08:57:24,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:24,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-09-25 08:57:24,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:24,383 INFO L225 Difference]: With dead ends: 1803 [2020-09-25 08:57:24,383 INFO L226 Difference]: Without dead ends: 1801 [2020-09-25 08:57:24,384 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 08:57:24,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2020-09-25 08:57:24,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1495. [2020-09-25 08:57:24,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-09-25 08:57:24,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1942 transitions. [2020-09-25 08:57:24,423 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1942 transitions. Word has length 66 [2020-09-25 08:57:24,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:24,424 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 1942 transitions. [2020-09-25 08:57:24,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:24,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1942 transitions. [2020-09-25 08:57:24,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-25 08:57:24,426 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:24,426 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 08:57:24,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 08:57:24,426 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:24,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:24,427 INFO L82 PathProgramCache]: Analyzing trace with hash -678433246, now seen corresponding path program 1 times [2020-09-25 08:57:24,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:24,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616147593] [2020-09-25 08:57:24,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:24,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:24,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:24,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 08:57:24,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:24,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 08:57:24,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:24,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:24,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:24,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 08:57:24,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:57:24,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:24,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:24,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:24,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:24,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:24,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:24,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:57:24,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:24,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:24,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:24,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:24,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:24,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:24,549 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 08:57:24,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616147593] [2020-09-25 08:57:24,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:24,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:24,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609992390] [2020-09-25 08:57:24,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:24,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:24,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:24,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:24,551 INFO L87 Difference]: Start difference. First operand 1495 states and 1942 transitions. Second operand 3 states. [2020-09-25 08:57:24,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:24,594 INFO L93 Difference]: Finished difference Result 4315 states and 5624 transitions. [2020-09-25 08:57:24,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:24,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-09-25 08:57:24,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:24,608 INFO L225 Difference]: With dead ends: 4315 [2020-09-25 08:57:24,608 INFO L226 Difference]: Without dead ends: 2857 [2020-09-25 08:57:24,611 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 08:57:24,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2020-09-25 08:57:24,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2855. [2020-09-25 08:57:24,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states. [2020-09-25 08:57:24,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3654 transitions. [2020-09-25 08:57:24,681 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3654 transitions. Word has length 66 [2020-09-25 08:57:24,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:24,681 INFO L479 AbstractCegarLoop]: Abstraction has 2855 states and 3654 transitions. [2020-09-25 08:57:24,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:24,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3654 transitions. [2020-09-25 08:57:24,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 08:57:24,684 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:24,685 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 08:57:24,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 08:57:24,685 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:24,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:24,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1214689743, now seen corresponding path program 1 times [2020-09-25 08:57:24,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:24,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1135950822] [2020-09-25 08:57:24,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:24,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:24,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:24,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 08:57:24,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:24,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 08:57:24,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:24,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:24,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:24,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 08:57:24,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:57:24,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:24,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:24,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:24,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:24,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:24,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:24,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:57:24,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:24,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:24,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:24,768 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 08:57:24,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1135950822] [2020-09-25 08:57:24,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:24,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:24,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469266392] [2020-09-25 08:57:24,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:24,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:24,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:24,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:24,770 INFO L87 Difference]: Start difference. First operand 2855 states and 3654 transitions. Second operand 3 states. [2020-09-25 08:57:24,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:24,809 INFO L93 Difference]: Finished difference Result 3403 states and 4328 transitions. [2020-09-25 08:57:24,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:24,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-09-25 08:57:24,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:24,824 INFO L225 Difference]: With dead ends: 3403 [2020-09-25 08:57:24,825 INFO L226 Difference]: Without dead ends: 3401 [2020-09-25 08:57:24,828 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 08:57:24,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2020-09-25 08:57:24,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 2855. [2020-09-25 08:57:24,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states. [2020-09-25 08:57:24,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3622 transitions. [2020-09-25 08:57:24,903 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3622 transitions. Word has length 67 [2020-09-25 08:57:24,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:24,904 INFO L479 AbstractCegarLoop]: Abstraction has 2855 states and 3622 transitions. [2020-09-25 08:57:24,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:24,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3622 transitions. [2020-09-25 08:57:24,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 08:57:24,906 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:24,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:57:24,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 08:57:24,907 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:24,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:24,907 INFO L82 PathProgramCache]: Analyzing trace with hash 443652336, now seen corresponding path program 1 times [2020-09-25 08:57:24,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:24,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934537133] [2020-09-25 08:57:24,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:24,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:24,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:24,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 08:57:24,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:24,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 08:57:24,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:24,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:24,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:24,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 08:57:24,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:57:24,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:24,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:24,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:24,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:24,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:24,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:24,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:57:24,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:24,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:24,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:24,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:24,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:24,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:25,017 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 08:57:25,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934537133] [2020-09-25 08:57:25,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:25,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:25,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806798848] [2020-09-25 08:57:25,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:25,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:25,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:25,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:25,021 INFO L87 Difference]: Start difference. First operand 2855 states and 3622 transitions. Second operand 3 states. [2020-09-25 08:57:25,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:25,082 INFO L93 Difference]: Finished difference Result 8299 states and 10536 transitions. [2020-09-25 08:57:25,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:25,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-09-25 08:57:25,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:25,105 INFO L225 Difference]: With dead ends: 8299 [2020-09-25 08:57:25,105 INFO L226 Difference]: Without dead ends: 5481 [2020-09-25 08:57:25,111 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 08:57:25,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5481 states. [2020-09-25 08:57:25,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5481 to 5479. [2020-09-25 08:57:25,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-25 08:57:25,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6822 transitions. [2020-09-25 08:57:25,240 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6822 transitions. Word has length 67 [2020-09-25 08:57:25,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:25,241 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6822 transitions. [2020-09-25 08:57:25,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:25,241 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6822 transitions. [2020-09-25 08:57:25,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-25 08:57:25,245 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:25,245 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 08:57:25,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 08:57:25,245 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:25,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:25,246 INFO L82 PathProgramCache]: Analyzing trace with hash 192792828, now seen corresponding path program 1 times [2020-09-25 08:57:25,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:25,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849841415] [2020-09-25 08:57:25,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:25,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:25,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:25,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 08:57:25,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:25,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 08:57:25,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:25,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:25,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:25,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 08:57:25,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:57:25,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:25,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:25,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:25,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:25,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:25,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:25,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:57:25,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:25,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:25,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:25,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:25,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:25,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:25,328 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 08:57:25,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849841415] [2020-09-25 08:57:25,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:25,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:25,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845448221] [2020-09-25 08:57:25,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:25,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:25,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:25,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:25,330 INFO L87 Difference]: Start difference. First operand 5479 states and 6822 transitions. Second operand 3 states. [2020-09-25 08:57:25,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:25,385 INFO L93 Difference]: Finished difference Result 6443 states and 7912 transitions. [2020-09-25 08:57:25,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:25,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-09-25 08:57:25,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:25,414 INFO L225 Difference]: With dead ends: 6443 [2020-09-25 08:57:25,415 INFO L226 Difference]: Without dead ends: 6441 [2020-09-25 08:57:25,418 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 08:57:25,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6441 states. [2020-09-25 08:57:25,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6441 to 5479. [2020-09-25 08:57:25,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-25 08:57:25,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6758 transitions. [2020-09-25 08:57:25,588 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6758 transitions. Word has length 68 [2020-09-25 08:57:25,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:25,588 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6758 transitions. [2020-09-25 08:57:25,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:25,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6758 transitions. [2020-09-25 08:57:25,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-25 08:57:25,593 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:25,594 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 08:57:25,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 08:57:25,594 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:25,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:25,595 INFO L82 PathProgramCache]: Analyzing trace with hash 868567382, now seen corresponding path program 1 times [2020-09-25 08:57:25,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:25,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489748863] [2020-09-25 08:57:25,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:25,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:25,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:25,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 08:57:25,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:25,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 08:57:25,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:25,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:25,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:25,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 08:57:25,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:57:25,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:25,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:25,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:25,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:25,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:25,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:25,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:57:25,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:25,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:25,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:25,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:25,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:25,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:25,741 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 08:57:25,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489748863] [2020-09-25 08:57:25,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:25,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:25,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737771516] [2020-09-25 08:57:25,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:25,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:25,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:25,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:25,744 INFO L87 Difference]: Start difference. First operand 5479 states and 6758 transitions. Second operand 3 states. [2020-09-25 08:57:25,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:25,846 INFO L93 Difference]: Finished difference Result 15977 states and 19687 transitions. [2020-09-25 08:57:25,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:25,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-09-25 08:57:25,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:25,870 INFO L225 Difference]: With dead ends: 15977 [2020-09-25 08:57:25,870 INFO L226 Difference]: Without dead ends: 5479 [2020-09-25 08:57:25,887 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 08:57:25,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2020-09-25 08:57:25,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2020-09-25 08:57:25,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-25 08:57:26,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6502 transitions. [2020-09-25 08:57:26,003 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6502 transitions. Word has length 68 [2020-09-25 08:57:26,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:26,003 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6502 transitions. [2020-09-25 08:57:26,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:26,004 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6502 transitions. [2020-09-25 08:57:26,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 08:57:26,008 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:26,008 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 08:57:26,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 08:57:26,008 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:26,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:26,009 INFO L82 PathProgramCache]: Analyzing trace with hash 875079941, now seen corresponding path program 1 times [2020-09-25 08:57:26,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:26,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317026426] [2020-09-25 08:57:26,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:26,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:26,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:26,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 08:57:26,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:26,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 08:57:26,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:26,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:26,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:26,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-25 08:57:26,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:57:26,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:26,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:26,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:26,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:26,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:26,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:26,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:57:26,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:26,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:26,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:26,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:26,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:26,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:26,093 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 08:57:26,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317026426] [2020-09-25 08:57:26,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:26,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:26,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68887517] [2020-09-25 08:57:26,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:26,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:26,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:26,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:26,095 INFO L87 Difference]: Start difference. First operand 5479 states and 6502 transitions. Second operand 3 states. [2020-09-25 08:57:26,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:26,133 INFO L93 Difference]: Finished difference Result 5479 states and 6502 transitions. [2020-09-25 08:57:26,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:26,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-09-25 08:57:26,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:26,134 INFO L225 Difference]: With dead ends: 5479 [2020-09-25 08:57:26,135 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 08:57:26,143 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 08:57:26,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 08:57:26,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 08:57:26,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 08:57:26,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 08:57:26,144 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2020-09-25 08:57:26,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:26,144 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 08:57:26,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:26,145 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 08:57:26,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 08:57:26,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 08:57:26,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 08:57:26,175 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 08:57:26,175 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 08:57:26,175 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 08:57:26,175 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 08:57:26,176 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 08:57:26,176 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 08:57:26,176 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-09-25 08:57:26,176 INFO L264 CegarLoopResult]: At program point L126-1(lines 5 135) the Hoare annotation is: false [2020-09-25 08:57:26,176 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 08:57:26,176 INFO L268 CegarLoopResult]: For program point L60-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 08:57:26,176 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 08:57:26,176 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 08:57:26,177 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 135) no Hoare annotation was computed. [2020-09-25 08:57:26,177 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-25 08:57:26,177 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-25 08:57:26,177 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 08:57:26,177 INFO L268 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-09-25 08:57:26,177 INFO L268 CegarLoopResult]: For program point L110-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 08:57:26,177 INFO L268 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-09-25 08:57:26,178 INFO L268 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-09-25 08:57:26,178 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-25 08:57:26,178 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-25 08:57:26,178 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-25 08:57:26,178 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 08:57:26,178 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-09-25 08:57:26,178 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 08:57:26,179 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 08:57:26,179 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 08:57:26,179 INFO L268 CegarLoopResult]: For program point L95-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 08:57:26,179 INFO L268 CegarLoopResult]: For program point L120-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 08:57:26,179 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 08:57:26,179 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 08:57:26,179 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-25 08:57:26,179 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-25 08:57:26,179 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-25 08:57:26,180 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 08:57:26,180 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 135) no Hoare annotation was computed. [2020-09-25 08:57:26,180 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-25 08:57:26,180 INFO L268 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-09-25 08:57:26,180 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed. [2020-09-25 08:57:26,180 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 135) the Hoare annotation is: true [2020-09-25 08:57:26,180 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-25 08:57:26,181 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 08:57:26,181 INFO L268 CegarLoopResult]: For program point L80-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 08:57:26,181 INFO L268 CegarLoopResult]: For program point L105-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 08:57:26,181 INFO L268 CegarLoopResult]: For program point L72-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 08:57:26,181 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 08:57:26,181 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 08:57:26,181 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-25 08:57:26,181 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 08:57:26,181 INFO L268 CegarLoopResult]: For program point L64-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 08:57:26,182 INFO L268 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-09-25 08:57:26,182 INFO L268 CegarLoopResult]: For program point L56(lines 56 58) no Hoare annotation was computed. [2020-09-25 08:57:26,182 INFO L268 CegarLoopResult]: For program point L56-2(lines 33 130) no Hoare annotation was computed. [2020-09-25 08:57:26,182 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-09-25 08:57:26,182 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-09-25 08:57:26,182 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 08:57:26,182 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 08:57:26,182 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 08:57:26,183 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-25 08:57:26,183 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-25 08:57:26,183 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-25 08:57:26,183 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 08:57:26,183 INFO L271 CegarLoopResult]: At program point L131(lines 5 135) the Hoare annotation is: true [2020-09-25 08:57:26,183 INFO L268 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-09-25 08:57:26,183 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-25 08:57:26,184 INFO L268 CegarLoopResult]: For program point L90-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 08:57:26,184 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 08:57:26,184 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 08:57:26,184 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 08:57:26,184 INFO L268 CegarLoopResult]: For program point L115-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 08:57:26,184 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 08:57:26,184 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-25 08:57:26,185 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-25 08:57:26,185 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 08:57:26,185 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-25 08:57:26,185 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-25 08:57:26,185 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-25 08:57:26,185 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 08:57:26,185 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 08:57:26,185 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 08:57:26,186 INFO L268 CegarLoopResult]: For program point L100-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 08:57:26,186 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 08:57:26,186 INFO L268 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-09-25 08:57:26,186 INFO L268 CegarLoopResult]: For program point L34-2(line 34) no Hoare annotation was computed. [2020-09-25 08:57:26,186 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-25 08:57:26,186 INFO L271 CegarLoopResult]: At program point L125-1(lines 33 130) the Hoare annotation is: true [2020-09-25 08:57:26,186 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-09-25 08:57:26,186 INFO L268 CegarLoopResult]: For program point L84-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 08:57:26,187 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 08:57:26,187 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 08:57:26,187 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 08:57:26,187 INFO L268 CegarLoopResult]: For program point L76-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 08:57:26,187 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 08:57:26,187 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-25 08:57:26,187 INFO L268 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-09-25 08:57:26,187 INFO L268 CegarLoopResult]: For program point L35(lines 35 37) no Hoare annotation was computed. [2020-09-25 08:57:26,187 INFO L268 CegarLoopResult]: For program point L68-1(lines 33 130) no Hoare annotation was computed. [2020-09-25 08:57:26,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:57:26 BoogieIcfgContainer [2020-09-25 08:57:26,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:57:26,205 INFO L168 Benchmark]: Toolchain (without parser) took 5443.97 ms. Allocated memory was 140.0 MB in the beginning and 288.4 MB in the end (delta: 148.4 MB). Free memory was 103.4 MB in the beginning and 102.9 MB in the end (delta: 548.5 kB). Peak memory consumption was 148.9 MB. Max. memory is 7.1 GB. [2020-09-25 08:57:26,206 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 08:57:26,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.45 ms. Allocated memory is still 140.0 MB. Free memory was 102.8 MB in the beginning and 92.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-25 08:57:26,213 INFO L168 Benchmark]: Boogie Preprocessor took 122.01 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 92.4 MB in the beginning and 180.5 MB in the end (delta: -88.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-25 08:57:26,214 INFO L168 Benchmark]: RCFGBuilder took 526.71 ms. Allocated memory is still 202.9 MB. Free memory was 180.5 MB in the beginning and 158.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-09-25 08:57:26,215 INFO L168 Benchmark]: TraceAbstraction took 4454.95 ms. Allocated memory was 202.9 MB in the beginning and 288.4 MB in the end (delta: 85.5 MB). Free memory was 157.8 MB in the beginning and 102.9 MB in the end (delta: 55.0 MB). Peak memory consumption was 140.4 MB. Max. memory is 7.1 GB. [2020-09-25 08:57:26,220 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 330.45 ms. Allocated memory is still 140.0 MB. Free memory was 102.8 MB in the beginning and 92.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.01 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 92.4 MB in the beginning and 180.5 MB in the end (delta: -88.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 526.71 ms. Allocated memory is still 202.9 MB. Free memory was 180.5 MB in the beginning and 158.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4454.95 ms. Allocated memory was 202.9 MB in the beginning and 288.4 MB in the end (delta: 85.5 MB). Free memory was 157.8 MB in the beginning and 102.9 MB in the end (delta: 55.0 MB). Peak memory consumption was 140.4 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: 4.3s, 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, 0.1s SatisfiabilityAnalysisTime, 1.8s 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...