/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 SequenceOfStatements --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 16:05:11,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 16:05:11,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 16:05:11,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 16:05:11,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 16:05:11,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 16:05:11,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 16:05:11,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 16:05:11,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 16:05:11,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 16:05:11,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 16:05:11,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 16:05:11,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 16:05:11,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 16:05:11,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 16:05:11,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 16:05:11,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 16:05:11,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 16:05:11,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 16:05:11,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 16:05:11,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 16:05:11,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 16:05:11,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 16:05:11,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 16:05:11,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 16:05:11,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 16:05:11,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 16:05:11,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 16:05:11,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 16:05:11,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 16:05:11,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 16:05:11,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 16:05:11,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 16:05:11,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 16:05:11,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 16:05:11,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 16:05:11,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 16:05:11,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 16:05:11,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 16:05:11,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 16:05:11,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 16:05:11,159 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 [2020-10-12 16:05:11,181 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 16:05:11,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 16:05:11,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 16:05:11,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 16:05:11,183 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 16:05:11,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 16:05:11,183 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 16:05:11,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 16:05:11,183 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 16:05:11,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 16:05:11,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 16:05:11,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 16:05:11,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 16:05:11,184 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 16:05:11,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 16:05:11,185 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 16:05:11,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 16:05:11,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 16:05:11,185 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 16:05:11,186 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 16:05:11,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 16:05:11,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 16:05:11,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 16:05:11,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 16:05:11,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 16:05:11,187 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 16:05:11,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 16:05:11,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 16:05:11,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 16:05:11,188 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 -> SequenceOfStatements 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 16:05:11,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 16:05:11,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 16:05:11,521 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 16:05:11,523 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 16:05:11,523 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 16:05:11,524 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-10-12 16:05:11,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4857db193/20911b0fef9643c1ba2b70931291e30b/FLAG1474e1513 [2020-10-12 16:05:12,116 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 16:05:12,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-10-12 16:05:12,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4857db193/20911b0fef9643c1ba2b70931291e30b/FLAG1474e1513 [2020-10-12 16:05:12,448 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4857db193/20911b0fef9643c1ba2b70931291e30b [2020-10-12 16:05:12,459 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 16:05:12,461 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 16:05:12,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 16:05:12,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 16:05:12,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 16:05:12,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:05:12" (1/1) ... [2020-10-12 16:05:12,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8df9cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:12, skipping insertion in model container [2020-10-12 16:05:12,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:05:12" (1/1) ... [2020-10-12 16:05:12,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 16:05:12,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 16:05:12,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 16:05:12,724 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 16:05:12,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 16:05:12,783 INFO L208 MainTranslator]: Completed translation [2020-10-12 16:05:12,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:12 WrapperNode [2020-10-12 16:05:12,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 16:05:12,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 16:05:12,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 16:05:12,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 16:05:12,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:12" (1/1) ... [2020-10-12 16:05:12,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:12" (1/1) ... [2020-10-12 16:05:12,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:12" (1/1) ... [2020-10-12 16:05:12,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:12" (1/1) ... [2020-10-12 16:05:12,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:12" (1/1) ... [2020-10-12 16:05:12,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:12" (1/1) ... [2020-10-12 16:05:12,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:12" (1/1) ... [2020-10-12 16:05:12,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 16:05:12,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 16:05:12,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 16:05:12,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 16:05:12,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 16:05:13,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 16:05:13,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 16:05:13,012 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 16:05:13,012 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 16:05:13,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 16:05:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 16:05:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 16:05:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 16:05:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 16:05:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 16:05:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 16:05:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 16:05:13,424 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 16:05:13,424 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 16:05:13,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:05:13 BoogieIcfgContainer [2020-10-12 16:05:13,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 16:05:13,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 16:05:13,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 16:05:13,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 16:05:13,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 04:05:12" (1/3) ... [2020-10-12 16:05:13,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e03bd00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:05:13, skipping insertion in model container [2020-10-12 16:05:13,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:05:12" (2/3) ... [2020-10-12 16:05:13,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e03bd00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:05:13, skipping insertion in model container [2020-10-12 16:05:13,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:05:13" (3/3) ... [2020-10-12 16:05:13,438 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-10-12 16:05:13,448 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 16:05:13,457 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-10-12 16:05:13,480 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-10-12 16:05:13,511 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 16:05:13,511 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 16:05:13,511 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 16:05:13,511 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 16:05:13,511 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 16:05:13,511 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 16:05:13,511 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 16:05:13,512 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 16:05:13,536 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-10-12 16:05:13,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-12 16:05:13,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:13,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:13,543 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:13,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:13,549 INFO L82 PathProgramCache]: Analyzing trace with hash -2019463306, now seen corresponding path program 1 times [2020-10-12 16:05:13,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:13,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206537077] [2020-10-12 16:05:13,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:13,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:13,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:13,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 16:05:13,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:13,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-12 16:05:13,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 16:05:13,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 16:05:13,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 16:05:13,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 16:05:13,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:13,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:13,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:13,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:13,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:13,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 16:05:13,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:13,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:13,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:13,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:13,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206537077] [2020-10-12 16:05:13,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:13,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 16:05:13,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648420765] [2020-10-12 16:05:13,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 16:05:13,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:13,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 16:05:13,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 16:05:13,953 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2020-10-12 16:05:14,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:14,084 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2020-10-12 16:05:14,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 16:05:14,086 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-12 16:05:14,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:14,098 INFO L225 Difference]: With dead ends: 93 [2020-10-12 16:05:14,098 INFO L226 Difference]: Without dead ends: 80 [2020-10-12 16:05:14,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 16:05:14,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-12 16:05:14,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-12 16:05:14,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-12 16:05:14,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2020-10-12 16:05:14,152 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 19 [2020-10-12 16:05:14,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:14,153 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2020-10-12 16:05:14,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 16:05:14,153 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2020-10-12 16:05:14,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-12 16:05:14,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:14,154 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] [2020-10-12 16:05:14,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 16:05:14,155 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:14,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:14,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1821150056, now seen corresponding path program 1 times [2020-10-12 16:05:14,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:14,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590957270] [2020-10-12 16:05:14,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:14,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:14,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:14,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 16:05:14,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:14,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-12 16:05:14,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:14,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:14,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-12 16:05:14,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:05:14,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:14,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:14,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:14,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:14,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:14,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:14,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:05:14,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:14,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:14,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:14,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:14,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-10-12 16:05:14,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:14,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [590957270] [2020-10-12 16:05:14,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:14,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 16:05:14,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785702244] [2020-10-12 16:05:14,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 16:05:14,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:14,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 16:05:14,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:05:14,521 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 7 states. [2020-10-12 16:05:14,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:14,860 INFO L93 Difference]: Finished difference Result 103 states and 108 transitions. [2020-10-12 16:05:14,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 16:05:14,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-12 16:05:14,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:14,862 INFO L225 Difference]: With dead ends: 103 [2020-10-12 16:05:14,863 INFO L226 Difference]: Without dead ends: 101 [2020-10-12 16:05:14,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-10-12 16:05:14,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-12 16:05:14,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 78. [2020-10-12 16:05:14,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-12 16:05:14,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2020-10-12 16:05:14,877 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 20 [2020-10-12 16:05:14,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:14,877 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2020-10-12 16:05:14,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 16:05:14,877 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2020-10-12 16:05:14,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-12 16:05:14,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:14,878 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] [2020-10-12 16:05:14,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 16:05:14,879 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:14,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:14,880 INFO L82 PathProgramCache]: Analyzing trace with hash 2073610827, now seen corresponding path program 1 times [2020-10-12 16:05:14,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:14,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1211140049] [2020-10-12 16:05:14,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:14,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:14,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:14,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 16:05:14,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:14,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 16:05:14,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:14,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:05:14,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 16:05:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:05:14,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:14,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:15,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:15,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:15,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:15,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:15,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:05:15,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:15,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:15,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:15,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:15,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:15,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:15,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1211140049] [2020-10-12 16:05:15,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:15,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 16:05:15,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443350210] [2020-10-12 16:05:15,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 16:05:15,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:15,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 16:05:15,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 16:05:15,011 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand 5 states. [2020-10-12 16:05:15,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:15,203 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2020-10-12 16:05:15,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:15,204 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-12 16:05:15,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:15,206 INFO L225 Difference]: With dead ends: 101 [2020-10-12 16:05:15,206 INFO L226 Difference]: Without dead ends: 99 [2020-10-12 16:05:15,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:05:15,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-12 16:05:15,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 76. [2020-10-12 16:05:15,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-12 16:05:15,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2020-10-12 16:05:15,216 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 22 [2020-10-12 16:05:15,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:15,217 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2020-10-12 16:05:15,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 16:05:15,217 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-10-12 16:05:15,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-12 16:05:15,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:15,218 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] [2020-10-12 16:05:15,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 16:05:15,219 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:15,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:15,220 INFO L82 PathProgramCache]: Analyzing trace with hash -142570686, now seen corresponding path program 1 times [2020-10-12 16:05:15,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:15,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60715571] [2020-10-12 16:05:15,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:15,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:15,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:15,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:15,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 16:05:15,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:05:15,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-12 16:05:15,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:15,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:05:15,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-12 16:05:15,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 16:05:15,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:15,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:15,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:15,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:15,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:15,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:15,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:05:15,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:15,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:15,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:15,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60715571] [2020-10-12 16:05:15,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:15,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:15,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574656401] [2020-10-12 16:05:15,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:15,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:15,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:15,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:15,523 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 6 states. [2020-10-12 16:05:15,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:15,650 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-10-12 16:05:15,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:15,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-10-12 16:05:15,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:15,653 INFO L225 Difference]: With dead ends: 76 [2020-10-12 16:05:15,653 INFO L226 Difference]: Without dead ends: 74 [2020-10-12 16:05:15,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:05:15,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-12 16:05:15,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-12 16:05:15,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-12 16:05:15,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2020-10-12 16:05:15,662 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 23 [2020-10-12 16:05:15,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:15,662 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2020-10-12 16:05:15,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:15,662 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-10-12 16:05:15,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-12 16:05:15,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:15,664 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] [2020-10-12 16:05:15,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 16:05:15,664 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:15,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:15,665 INFO L82 PathProgramCache]: Analyzing trace with hash 402497124, now seen corresponding path program 1 times [2020-10-12 16:05:15,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:15,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1085901241] [2020-10-12 16:05:15,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:15,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:15,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:15,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:15,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 16:05:15,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:05:15,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-12 16:05:15,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:05:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 16:05:15,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:15,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:15,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:15,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:15,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:15,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:15,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:15,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:05:15,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:15,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:15,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:15,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:15,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:15,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:15,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1085901241] [2020-10-12 16:05:15,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:15,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:15,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100549742] [2020-10-12 16:05:15,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:15,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:15,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:15,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:15,862 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 6 states. [2020-10-12 16:05:16,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:16,148 INFO L93 Difference]: Finished difference Result 141 states and 147 transitions. [2020-10-12 16:05:16,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:16,149 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-10-12 16:05:16,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:16,150 INFO L225 Difference]: With dead ends: 141 [2020-10-12 16:05:16,151 INFO L226 Difference]: Without dead ends: 139 [2020-10-12 16:05:16,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:05:16,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-12 16:05:16,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 77. [2020-10-12 16:05:16,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-12 16:05:16,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-10-12 16:05:16,161 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2020-10-12 16:05:16,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:16,162 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-10-12 16:05:16,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:16,162 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-10-12 16:05:16,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-12 16:05:16,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:16,163 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] [2020-10-12 16:05:16,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 16:05:16,164 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:16,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:16,164 INFO L82 PathProgramCache]: Analyzing trace with hash 406230933, now seen corresponding path program 1 times [2020-10-12 16:05:16,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:16,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1550314460] [2020-10-12 16:05:16,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:16,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:16,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:16,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:16,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:16,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 16:05:16,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:05:16,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-12 16:05:16,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:16,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:05:16,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 16:05:16,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:16,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:16,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:16,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:16,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:16,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:16,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:16,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:05:16,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:16,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:16,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:16,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:16,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-10-12 16:05:16,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:16,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1550314460] [2020-10-12 16:05:16,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:16,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:16,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358544373] [2020-10-12 16:05:16,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:16,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:16,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:16,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:16,387 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-10-12 16:05:16,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:16,598 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2020-10-12 16:05:16,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:16,598 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-10-12 16:05:16,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:16,600 INFO L225 Difference]: With dead ends: 95 [2020-10-12 16:05:16,600 INFO L226 Difference]: Without dead ends: 93 [2020-10-12 16:05:16,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:05:16,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-12 16:05:16,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 79. [2020-10-12 16:05:16,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-12 16:05:16,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-10-12 16:05:16,614 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 26 [2020-10-12 16:05:16,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:16,615 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-10-12 16:05:16,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:16,615 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-10-12 16:05:16,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-12 16:05:16,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:16,620 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] [2020-10-12 16:05:16,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 16:05:16,620 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:16,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:16,621 INFO L82 PathProgramCache]: Analyzing trace with hash -407487796, now seen corresponding path program 1 times [2020-10-12 16:05:16,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:16,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399259491] [2020-10-12 16:05:16,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:16,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:16,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:16,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:17,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:17,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 16:05:17,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:05:17,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-10-12 16:05:17,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:17,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:05:17,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-12 16:05:17,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:05:17,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:17,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:17,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:17,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:17,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:17,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:17,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 16:05:17,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:17,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:17,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:17,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:17,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:17,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:17,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399259491] [2020-10-12 16:05:17,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:17,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:17,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668021838] [2020-10-12 16:05:17,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:17,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:17,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:17,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:17,157 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 6 states. [2020-10-12 16:05:17,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:17,349 INFO L93 Difference]: Finished difference Result 121 states and 127 transitions. [2020-10-12 16:05:17,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:17,350 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-10-12 16:05:17,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:17,351 INFO L225 Difference]: With dead ends: 121 [2020-10-12 16:05:17,352 INFO L226 Difference]: Without dead ends: 119 [2020-10-12 16:05:17,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:05:17,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-12 16:05:17,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2020-10-12 16:05:17,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-12 16:05:17,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-10-12 16:05:17,366 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 27 [2020-10-12 16:05:17,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:17,367 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-10-12 16:05:17,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:17,367 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-10-12 16:05:17,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-12 16:05:17,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:17,370 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] [2020-10-12 16:05:17,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 16:05:17,370 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:17,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:17,371 INFO L82 PathProgramCache]: Analyzing trace with hash -291739827, now seen corresponding path program 1 times [2020-10-12 16:05:17,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:17,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844414937] [2020-10-12 16:05:17,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:17,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:17,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:17,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:17,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:17,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:17,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 16:05:17,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:05:17,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 466 [2020-10-12 16:05:17,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:17,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:05:17,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 16:05:17,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 16:05:17,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:17,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:17,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:17,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:17,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:17,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:17,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:17,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:17,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:17,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:17,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844414937] [2020-10-12 16:05:17,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:17,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:17,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787476691] [2020-10-12 16:05:17,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:17,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:17,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:17,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:17,899 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-10-12 16:05:18,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:18,146 INFO L93 Difference]: Finished difference Result 119 states and 125 transitions. [2020-10-12 16:05:18,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:18,147 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-10-12 16:05:18,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:18,149 INFO L225 Difference]: With dead ends: 119 [2020-10-12 16:05:18,149 INFO L226 Difference]: Without dead ends: 117 [2020-10-12 16:05:18,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:05:18,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-12 16:05:18,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 80. [2020-10-12 16:05:18,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-12 16:05:18,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2020-10-12 16:05:18,158 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 27 [2020-10-12 16:05:18,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:18,158 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2020-10-12 16:05:18,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:18,168 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2020-10-12 16:05:18,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-12 16:05:18,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:18,169 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] [2020-10-12 16:05:18,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 16:05:18,169 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:18,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:18,170 INFO L82 PathProgramCache]: Analyzing trace with hash 145778170, now seen corresponding path program 1 times [2020-10-12 16:05:18,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:18,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124465671] [2020-10-12 16:05:18,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:18,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:18,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:18,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:18,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:18,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 16:05:18,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:05:18,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-12 16:05:18,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:18,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:05:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-12 16:05:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 16:05:18,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:18,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:18,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:18,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:18,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:18,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:18,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:18,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:18,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:18,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:18,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:18,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:18,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:18,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124465671] [2020-10-12 16:05:18,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:18,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:18,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766606106] [2020-10-12 16:05:18,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:18,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:18,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:18,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:18,559 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand 6 states. [2020-10-12 16:05:18,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:18,677 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2020-10-12 16:05:18,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:18,678 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-12 16:05:18,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:18,679 INFO L225 Difference]: With dead ends: 80 [2020-10-12 16:05:18,679 INFO L226 Difference]: Without dead ends: 78 [2020-10-12 16:05:18,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:05:18,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-12 16:05:18,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 75. [2020-10-12 16:05:18,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-12 16:05:18,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2020-10-12 16:05:18,685 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 28 [2020-10-12 16:05:18,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:18,686 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2020-10-12 16:05:18,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:18,686 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2020-10-12 16:05:18,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-12 16:05:18,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:18,687 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] [2020-10-12 16:05:18,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 16:05:18,687 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:18,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:18,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1188998893, now seen corresponding path program 1 times [2020-10-12 16:05:18,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:18,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1871991699] [2020-10-12 16:05:18,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:18,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:18,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:18,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:18,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:18,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:18,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 16:05:18,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:05:18,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-12 16:05:18,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:18,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:05:18,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 16:05:18,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 16:05:18,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:18,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:18,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:18,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:18,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:18,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:18,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 16:05:18,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:18,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:18,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:18,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:18,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:18,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:18,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1871991699] [2020-10-12 16:05:18,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:18,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:18,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256115922] [2020-10-12 16:05:18,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:18,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:18,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:18,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:18,998 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 6 states. [2020-10-12 16:05:19,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:19,216 INFO L93 Difference]: Finished difference Result 114 states and 120 transitions. [2020-10-12 16:05:19,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:19,216 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-10-12 16:05:19,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:19,217 INFO L225 Difference]: With dead ends: 114 [2020-10-12 16:05:19,217 INFO L226 Difference]: Without dead ends: 112 [2020-10-12 16:05:19,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:05:19,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-12 16:05:19,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 78. [2020-10-12 16:05:19,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-12 16:05:19,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2020-10-12 16:05:19,224 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 29 [2020-10-12 16:05:19,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:19,224 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2020-10-12 16:05:19,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:19,224 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2020-10-12 16:05:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-12 16:05:19,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:19,228 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:19,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 16:05:19,228 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:19,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:19,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1892106755, now seen corresponding path program 1 times [2020-10-12 16:05:19,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:19,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137522557] [2020-10-12 16:05:19,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:19,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:19,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:19,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:19,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:19,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 16:05:19,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:05:19,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-12 16:05:19,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:19,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:05:19,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 16:05:19,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:05:19,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:19,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:19,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:19,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:19,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:19,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:19,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:19,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:19,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:19,596 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 16:05:19,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137522557] [2020-10-12 16:05:19,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:05:19,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 16:05:19,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650517926] [2020-10-12 16:05:19,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 16:05:19,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:19,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 16:05:19,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:05:19,598 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand 7 states. [2020-10-12 16:05:19,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:19,812 INFO L93 Difference]: Finished difference Result 122 states and 128 transitions. [2020-10-12 16:05:19,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 16:05:19,813 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-10-12 16:05:19,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:19,814 INFO L225 Difference]: With dead ends: 122 [2020-10-12 16:05:19,814 INFO L226 Difference]: Without dead ends: 120 [2020-10-12 16:05:19,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:05:19,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-12 16:05:19,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 75. [2020-10-12 16:05:19,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-12 16:05:19,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2020-10-12 16:05:19,820 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 30 [2020-10-12 16:05:19,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:19,820 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2020-10-12 16:05:19,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 16:05:19,821 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2020-10-12 16:05:19,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-12 16:05:19,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:19,822 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] [2020-10-12 16:05:19,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 16:05:19,822 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:19,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:19,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1795743137, now seen corresponding path program 1 times [2020-10-12 16:05:19,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:19,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921549604] [2020-10-12 16:05:19,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:19,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:19,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:19,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:19,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:19,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:20,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:21,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:21,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 16:05:21,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 16:05:21,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1202 [2020-10-12 16:05:21,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:21,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:05:21,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-12 16:05:21,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:05:21,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:21,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:21,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:21,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:21,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:21,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:21,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:21,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:21,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:21,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:21,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:21,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:21,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:21,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:21,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921549604] [2020-10-12 16:05:21,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:21,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:21,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154627716] [2020-10-12 16:05:21,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:21,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:21,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:21,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:21,090 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 6 states. [2020-10-12 16:05:21,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:21,219 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2020-10-12 16:05:21,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:21,219 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-12 16:05:21,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:21,220 INFO L225 Difference]: With dead ends: 75 [2020-10-12 16:05:21,221 INFO L226 Difference]: Without dead ends: 73 [2020-10-12 16:05:21,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:05:21,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-12 16:05:21,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-12 16:05:21,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-12 16:05:21,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2020-10-12 16:05:21,228 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 30 [2020-10-12 16:05:21,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:21,230 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2020-10-12 16:05:21,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:21,230 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2020-10-12 16:05:21,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-12 16:05:21,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:21,232 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:21,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 16:05:21,233 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:21,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:21,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1470784207, now seen corresponding path program 1 times [2020-10-12 16:05:21,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:21,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829127858] [2020-10-12 16:05:21,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:21,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:21,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:21,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:21,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:21,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 16:05:21,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 16:05:21,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-12 16:05:21,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:21,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:05:21,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 16:05:21,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 16:05:21,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:21,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:21,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:21,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:21,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:21,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:21,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:21,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:21,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:21,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:21,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:21,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:21,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 16:05:21,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829127858] [2020-10-12 16:05:21,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:05:21,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 16:05:21,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847695846] [2020-10-12 16:05:21,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 16:05:21,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:21,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 16:05:21,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:05:21,631 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand 7 states. [2020-10-12 16:05:21,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:21,832 INFO L93 Difference]: Finished difference Result 78 states and 83 transitions. [2020-10-12 16:05:21,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 16:05:21,833 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-10-12 16:05:21,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:21,833 INFO L225 Difference]: With dead ends: 78 [2020-10-12 16:05:21,834 INFO L226 Difference]: Without dead ends: 76 [2020-10-12 16:05:21,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:05:21,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-12 16:05:21,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 71. [2020-10-12 16:05:21,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-12 16:05:21,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 76 transitions. [2020-10-12 16:05:21,844 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 76 transitions. Word has length 31 [2020-10-12 16:05:21,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:21,845 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 76 transitions. [2020-10-12 16:05:21,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 16:05:21,845 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 76 transitions. [2020-10-12 16:05:21,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-12 16:05:21,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:21,846 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] [2020-10-12 16:05:21,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 16:05:21,846 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:21,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:21,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1125738308, now seen corresponding path program 1 times [2020-10-12 16:05:21,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:21,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440096564] [2020-10-12 16:05:21,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:21,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:21,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:21,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:21,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:22,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:22,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:22,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-12 16:05:22,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 16:05:22,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-10-12 16:05:22,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:22,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:05:22,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 16:05:22,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 16:05:22,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:22,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:22,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:22,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:22,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:22,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:22,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:22,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:22,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:22,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:22,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:22,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:22,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:22,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440096564] [2020-10-12 16:05:22,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:22,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 16:05:22,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058870716] [2020-10-12 16:05:22,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 16:05:22,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:22,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 16:05:22,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:05:22,305 INFO L87 Difference]: Start difference. First operand 71 states and 76 transitions. Second operand 7 states. [2020-10-12 16:05:22,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:22,440 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2020-10-12 16:05:22,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 16:05:22,441 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-10-12 16:05:22,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:22,442 INFO L225 Difference]: With dead ends: 76 [2020-10-12 16:05:22,442 INFO L226 Difference]: Without dead ends: 74 [2020-10-12 16:05:22,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:05:22,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-12 16:05:22,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 69. [2020-10-12 16:05:22,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-12 16:05:22,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2020-10-12 16:05:22,448 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 33 [2020-10-12 16:05:22,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:22,448 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2020-10-12 16:05:22,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 16:05:22,448 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2020-10-12 16:05:22,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-12 16:05:22,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:22,449 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:22,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 16:05:22,450 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:22,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:22,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1120926823, now seen corresponding path program 1 times [2020-10-12 16:05:22,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:22,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680531687] [2020-10-12 16:05:22,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:22,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:22,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:22,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:22,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:23,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:23,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 16:05:23,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:05:23,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 568 [2020-10-12 16:05:23,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:23,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:05:23,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-12 16:05:23,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 16:05:23,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:23,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:23,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:23,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:23,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:23,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:23,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:23,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:23,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:23,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:23,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:23,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:23,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:23,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680531687] [2020-10-12 16:05:23,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:05:23,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 16:05:23,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521087509] [2020-10-12 16:05:23,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:05:23,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:23,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:05:23,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:05:23,106 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand 8 states. [2020-10-12 16:05:23,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:23,287 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2020-10-12 16:05:23,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 16:05:23,288 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-10-12 16:05:23,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:23,289 INFO L225 Difference]: With dead ends: 74 [2020-10-12 16:05:23,289 INFO L226 Difference]: Without dead ends: 72 [2020-10-12 16:05:23,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:05:23,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-12 16:05:23,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 60. [2020-10-12 16:05:23,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-12 16:05:23,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2020-10-12 16:05:23,294 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 34 [2020-10-12 16:05:23,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:23,295 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2020-10-12 16:05:23,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:05:23,295 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2020-10-12 16:05:23,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-12 16:05:23,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:23,296 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] [2020-10-12 16:05:23,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 16:05:23,296 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:23,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:23,297 INFO L82 PathProgramCache]: Analyzing trace with hash -538146004, now seen corresponding path program 1 times [2020-10-12 16:05:23,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:23,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882094565] [2020-10-12 16:05:23,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:23,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:23,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:23,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:23,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:23,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:23,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:23,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:23,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:26,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:26,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 16:05:26,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 16:05:26,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3574 [2020-10-12 16:05:26,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:26,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:26,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-12 16:05:26,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 16:05:26,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:26,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:26,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:26,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:26,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:26,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:26,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:26,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:26,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:26,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:26,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:26,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:26,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:26,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882094565] [2020-10-12 16:05:26,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:26,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:26,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294628985] [2020-10-12 16:05:26,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:26,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:26,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:26,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:26,951 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand 6 states. [2020-10-12 16:05:27,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:27,065 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2020-10-12 16:05:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:27,065 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-10-12 16:05:27,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:27,066 INFO L225 Difference]: With dead ends: 60 [2020-10-12 16:05:27,066 INFO L226 Difference]: Without dead ends: 58 [2020-10-12 16:05:27,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:05:27,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-12 16:05:27,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-10-12 16:05:27,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-12 16:05:27,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2020-10-12 16:05:27,073 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 34 [2020-10-12 16:05:27,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:27,073 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2020-10-12 16:05:27,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:27,073 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2020-10-12 16:05:27,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-12 16:05:27,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:27,074 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] [2020-10-12 16:05:27,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 16:05:27,074 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:27,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:27,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1208406181, now seen corresponding path program 1 times [2020-10-12 16:05:27,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:27,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [217212269] [2020-10-12 16:05:27,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:27,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:27,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:27,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:27,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:27,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:27,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:27,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:27,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:27,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-12 16:05:27,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 16:05:27,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 760 [2020-10-12 16:05:27,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:27,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:05:27,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 16:05:27,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 16:05:27,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:27,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:27,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:27,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:27,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:27,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:27,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:05:27,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:27,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:27,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:27,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:27,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:27,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:27,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [217212269] [2020-10-12 16:05:27,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:27,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 16:05:27,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124281089] [2020-10-12 16:05:27,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 16:05:27,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:27,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 16:05:27,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:05:27,965 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand 7 states. [2020-10-12 16:05:28,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:28,160 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2020-10-12 16:05:28,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 16:05:28,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2020-10-12 16:05:28,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:28,162 INFO L225 Difference]: With dead ends: 64 [2020-10-12 16:05:28,162 INFO L226 Difference]: Without dead ends: 62 [2020-10-12 16:05:28,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:05:28,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-12 16:05:28,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2020-10-12 16:05:28,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-12 16:05:28,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2020-10-12 16:05:28,169 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 37 [2020-10-12 16:05:28,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:28,170 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2020-10-12 16:05:28,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 16:05:28,170 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2020-10-12 16:05:28,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-12 16:05:28,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:28,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:28,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 16:05:28,172 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:28,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:28,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1194110858, now seen corresponding path program 1 times [2020-10-12 16:05:28,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:28,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628891819] [2020-10-12 16:05:28,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:28,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:28,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:28,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:28,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:28,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:28,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:28,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:28,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:30,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:30,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:33,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:33,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 16:05:33,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 16:05:33,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 16:05:33,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:33,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:33,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-12 16:05:33,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 16:05:33,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:33,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:33,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:33,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:33,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:33,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:33,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:33,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:33,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:33,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:33,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628891819] [2020-10-12 16:05:33,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:33,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:33,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497701742] [2020-10-12 16:05:33,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:33,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:33,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:33,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:33,259 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 6 states. [2020-10-12 16:05:33,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:33,422 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2020-10-12 16:05:33,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:33,423 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-10-12 16:05:33,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:33,424 INFO L225 Difference]: With dead ends: 59 [2020-10-12 16:05:33,424 INFO L226 Difference]: Without dead ends: 57 [2020-10-12 16:05:33,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:05:33,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-12 16:05:33,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2020-10-12 16:05:33,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-12 16:05:33,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2020-10-12 16:05:33,430 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 38 [2020-10-12 16:05:33,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:33,430 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2020-10-12 16:05:33,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:33,430 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2020-10-12 16:05:33,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 16:05:33,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:33,431 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] [2020-10-12 16:05:33,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 16:05:33,432 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:33,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:33,432 INFO L82 PathProgramCache]: Analyzing trace with hash -784167047, now seen corresponding path program 1 times [2020-10-12 16:05:33,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:33,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083963334] [2020-10-12 16:05:33,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:33,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:33,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:33,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:33,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:33,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:33,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 16:05:33,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 16:05:33,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-12 16:05:33,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:33,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:05:33,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-12 16:05:33,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:05:33,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:33,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:33,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:33,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:33,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:33,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:33,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:33,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:33,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:33,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:33,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:33,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:05:33,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:33,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083963334] [2020-10-12 16:05:33,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:33,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:33,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725666977] [2020-10-12 16:05:33,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:33,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:33,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:33,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:33,746 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 6 states. [2020-10-12 16:05:33,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:33,878 INFO L93 Difference]: Finished difference Result 82 states and 86 transitions. [2020-10-12 16:05:33,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:33,878 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-10-12 16:05:33,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:33,879 INFO L225 Difference]: With dead ends: 82 [2020-10-12 16:05:33,879 INFO L226 Difference]: Without dead ends: 54 [2020-10-12 16:05:33,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:05:33,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-12 16:05:33,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-12 16:05:33,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-12 16:05:33,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2020-10-12 16:05:33,884 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 40 [2020-10-12 16:05:33,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:33,884 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2020-10-12 16:05:33,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:33,885 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2020-10-12 16:05:33,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 16:05:33,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:33,885 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] [2020-10-12 16:05:33,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 16:05:33,886 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:33,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:33,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1627614740, now seen corresponding path program 1 times [2020-10-12 16:05:33,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:33,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652601748] [2020-10-12 16:05:33,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:33,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:33,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:33,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-12 16:05:33,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:33,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 16:05:33,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:05:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-12 16:05:33,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 16:05:33,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:33,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:33,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:33,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:33,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:33,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:33,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:33,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:33,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:33,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:33,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:33,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652601748] [2020-10-12 16:05:33,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:33,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 16:05:33,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427402205] [2020-10-12 16:05:33,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 16:05:33,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:33,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 16:05:33,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 16:05:33,976 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand 5 states. [2020-10-12 16:05:34,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:34,101 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2020-10-12 16:05:34,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:34,101 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-10-12 16:05:34,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:34,102 INFO L225 Difference]: With dead ends: 65 [2020-10-12 16:05:34,102 INFO L226 Difference]: Without dead ends: 63 [2020-10-12 16:05:34,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:05:34,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-12 16:05:34,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2020-10-12 16:05:34,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-12 16:05:34,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2020-10-12 16:05:34,106 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 41 [2020-10-12 16:05:34,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:34,106 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2020-10-12 16:05:34,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 16:05:34,107 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2020-10-12 16:05:34,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-12 16:05:34,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:34,107 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] [2020-10-12 16:05:34,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 16:05:34,108 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:34,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:34,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1083553822, now seen corresponding path program 1 times [2020-10-12 16:05:34,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:34,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44926786] [2020-10-12 16:05:34,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:34,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:34,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:34,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 16:05:34,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:34,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 16:05:34,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:34,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:05:34,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-12 16:05:34,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:05:34,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:34,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:34,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:34,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:34,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:34,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:34,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 16:05:34,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:34,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:34,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:34,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:34,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:34,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:34,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [44926786] [2020-10-12 16:05:34,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:34,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:34,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485501381] [2020-10-12 16:05:34,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:34,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:34,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:34,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:34,198 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand 6 states. [2020-10-12 16:05:34,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:34,308 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2020-10-12 16:05:34,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:34,309 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-10-12 16:05:34,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:34,310 INFO L225 Difference]: With dead ends: 59 [2020-10-12 16:05:34,310 INFO L226 Difference]: Without dead ends: 57 [2020-10-12 16:05:34,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:05:34,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-12 16:05:34,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2020-10-12 16:05:34,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-12 16:05:34,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2020-10-12 16:05:34,315 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 42 [2020-10-12 16:05:34,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:34,316 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2020-10-12 16:05:34,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:34,316 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2020-10-12 16:05:34,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-12 16:05:34,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:34,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:05:34,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 16:05:34,318 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:34,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:34,318 INFO L82 PathProgramCache]: Analyzing trace with hash -769566670, now seen corresponding path program 1 times [2020-10-12 16:05:34,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:34,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1866132173] [2020-10-12 16:05:34,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:34,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:34,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:34,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:34,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:34,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:34,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:34,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:34,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:34,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:37,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:37,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 16:05:37,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 16:05:37,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3555 [2020-10-12 16:05:37,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:37,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:05:37,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 16:05:37,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 16:05:37,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:37,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:37,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:37,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:37,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:37,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:37,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:37,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:37,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:37,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:37,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:37,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:37,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:37,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1866132173] [2020-10-12 16:05:37,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:37,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 16:05:37,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503218259] [2020-10-12 16:05:37,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 16:05:37,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:37,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 16:05:37,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:05:37,955 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand 7 states. [2020-10-12 16:05:38,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:38,087 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2020-10-12 16:05:38,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 16:05:38,087 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-10-12 16:05:38,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:38,088 INFO L225 Difference]: With dead ends: 59 [2020-10-12 16:05:38,088 INFO L226 Difference]: Without dead ends: 57 [2020-10-12 16:05:38,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-10-12 16:05:38,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-12 16:05:38,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 48. [2020-10-12 16:05:38,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-12 16:05:38,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2020-10-12 16:05:38,093 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 43 [2020-10-12 16:05:38,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:38,093 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2020-10-12 16:05:38,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 16:05:38,093 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2020-10-12 16:05:38,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-12 16:05:38,094 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:05:38,094 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] [2020-10-12 16:05:38,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 16:05:38,094 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:05:38,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:05:38,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1913240228, now seen corresponding path program 1 times [2020-10-12 16:05:38,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:05:38,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669876525] [2020-10-12 16:05:38,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:05:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:38,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:38,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:38,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:38,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:38,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:38,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:40,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:43,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:43,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 16:05:43,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 16:05:43,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 16:05:43,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:43,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 16:05:43,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-12 16:05:43,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 16:05:43,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:43,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:05:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:05:43,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:05:43,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:05:43,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:05:43,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:05:43,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:05:43,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:05:43,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:05:43,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:05:43,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:05:43,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:05:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:05:43,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669876525] [2020-10-12 16:05:43,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:05:43,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:05:43,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370545119] [2020-10-12 16:05:43,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:05:43,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:05:43,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:05:43,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:05:43,154 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand 6 states. [2020-10-12 16:05:43,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:05:43,294 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2020-10-12 16:05:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:05:43,295 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-10-12 16:05:43,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:05:43,295 INFO L225 Difference]: With dead ends: 57 [2020-10-12 16:05:43,295 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 16:05:43,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:05:43,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 16:05:43,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 16:05:43,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 16:05:43,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 16:05:43,297 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-10-12 16:05:43,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:05:43,297 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 16:05:43,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:05:43,297 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 16:05:43,298 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 16:05:43,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 16:05:43,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 16:05:43,633 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 113 [2020-10-12 16:05:43,786 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2020-10-12 16:05:43,906 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2020-10-12 16:05:44,254 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 55 [2020-10-12 16:05:44,428 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 26 [2020-10-12 16:05:44,676 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2020-10-12 16:05:44,679 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 16:05:44,679 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_375~0 |old(~__return_375~0)|)) [2020-10-12 16:05:44,679 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 16:05:44,680 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 16:05:44,680 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-12 16:05:44,680 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 16:05:44,680 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 16:05:44,680 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-10-12 16:05:44,680 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-10-12 16:05:44,680 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-10-12 16:05:44,680 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-10-12 16:05:44,680 INFO L268 CegarLoopResult]: For program point L192(lines 192 352) no Hoare annotation was computed. [2020-10-12 16:05:44,681 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2020-10-12 16:05:44,681 INFO L268 CegarLoopResult]: For program point L382(lines 382 391) no Hoare annotation was computed. [2020-10-12 16:05:44,681 INFO L268 CegarLoopResult]: For program point L93(lines 93 410) no Hoare annotation was computed. [2020-10-12 16:05:44,681 INFO L268 CegarLoopResult]: For program point L27(lines 27 435) no Hoare annotation was computed. [2020-10-12 16:05:44,681 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 437) no Hoare annotation was computed. [2020-10-12 16:05:44,681 INFO L268 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-10-12 16:05:44,681 INFO L264 CegarLoopResult]: At program point L399(lines 129 400) the Hoare annotation is: (and (< 0 main_~main__scheme~0) (not (= main_~__VERIFIER_assert__cond~0 0)) (= main_~__VERIFIER_assert__cond~3 1) (= main_~__VERIFIER_assert__cond~2 1) (<= 0 main_~main__cp~0) (= |old(~__return_375~0)| ~__return_375~0) (not (= main_~__VERIFIER_assert__cond~1 0)) (<= (+ main_~main__cp~0 1) main_~main__urilen~0)) [2020-10-12 16:05:44,682 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 253) no Hoare annotation was computed. [2020-10-12 16:05:44,682 INFO L268 CegarLoopResult]: For program point L102(lines 102 409) no Hoare annotation was computed. [2020-10-12 16:05:44,682 INFO L268 CegarLoopResult]: For program point L69(lines 69 414) no Hoare annotation was computed. [2020-10-12 16:05:44,684 INFO L264 CegarLoopResult]: At program point L325(lines 260 326) the Hoare annotation is: (and (let ((.cse0 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse1 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~9 0))) (.cse3 (not (= main_~__VERIFIER_assert__cond~11 0))) (.cse4 (= main_~__VERIFIER_assert__cond~3 1)) (.cse5 (<= 1 main_~__VERIFIER_assert__cond~6)) (.cse6 (<= 1 main_~__VERIFIER_assert__cond~8)) (.cse7 (<= 0 main_~main__cp~0)) (.cse8 (<= 1 main_~main__urilen~0)) (.cse9 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse10 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse11 (= main_~__VERIFIER_assert__cond~2 1)) (.cse12 (not (= main_~__VERIFIER_assert__cond~3 0))) (.cse13 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse14 (<= 1 main_~__VERIFIER_assert__cond~10))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= 1 main_~__VERIFIER_assert__cond~12) .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse0 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14))) (<= 0 main_~main__c~0) (<= (+ main_~main__cp~0 2) main_~main__urilen~0) (<= 0 main_~main__scheme~0) (= |old(~__return_375~0)| ~__return_375~0)) [2020-10-12 16:05:44,684 INFO L268 CegarLoopResult]: For program point L292(lines 292 316) no Hoare annotation was computed. [2020-10-12 16:05:44,684 INFO L268 CegarLoopResult]: For program point L160(lines 160 357) no Hoare annotation was computed. [2020-10-12 16:05:44,684 INFO L268 CegarLoopResult]: For program point L61(lines 61 420) no Hoare annotation was computed. [2020-10-12 16:05:44,685 INFO L268 CegarLoopResult]: For program point L251(lines 251 327) no Hoare annotation was computed. [2020-10-12 16:05:44,685 INFO L268 CegarLoopResult]: For program point L185(lines 185 353) no Hoare annotation was computed. [2020-10-12 16:05:44,685 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-10-12 16:05:44,686 INFO L264 CegarLoopResult]: At program point L408(lines 102 409) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~0 0)) (= |old(~__return_375~0)| ~__return_375~0)) [2020-10-12 16:05:44,686 INFO L268 CegarLoopResult]: For program point L210(lines 210 344) no Hoare annotation was computed. [2020-10-12 16:05:44,686 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-12 16:05:44,688 INFO L268 CegarLoopResult]: For program point L45(lines 45 432) no Hoare annotation was computed. [2020-10-12 16:05:44,688 INFO L268 CegarLoopResult]: For program point L268(lines 268 320) no Hoare annotation was computed. [2020-10-12 16:05:44,688 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 294) no Hoare annotation was computed. [2020-10-12 16:05:44,688 INFO L268 CegarLoopResult]: For program point L202(lines 202 351) no Hoare annotation was computed. [2020-10-12 16:05:44,689 INFO L268 CegarLoopResult]: For program point L260(lines 260 326) no Hoare annotation was computed. [2020-10-12 16:05:44,689 INFO L268 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-10-12 16:05:44,689 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-10-12 16:05:44,689 INFO L268 CegarLoopResult]: For program point L153(lines 153 358) no Hoare annotation was computed. [2020-10-12 16:05:44,689 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2020-10-12 16:05:44,689 INFO L268 CegarLoopResult]: For program point L21(lines 21 436) no Hoare annotation was computed. [2020-10-12 16:05:44,689 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 437) no Hoare annotation was computed. [2020-10-12 16:05:44,689 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 282) no Hoare annotation was computed. [2020-10-12 16:05:44,689 INFO L268 CegarLoopResult]: For program point L294(line 294) no Hoare annotation was computed. [2020-10-12 16:05:44,690 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2020-10-12 16:05:44,690 INFO L268 CegarLoopResult]: For program point L63(lines 63 415) no Hoare annotation was computed. [2020-10-12 16:05:44,690 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 437) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2020-10-12 16:05:44,690 INFO L268 CegarLoopResult]: For program point L253(line 253) no Hoare annotation was computed. [2020-10-12 16:05:44,690 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-12 16:05:44,690 INFO L268 CegarLoopResult]: For program point L121(lines 121 401) no Hoare annotation was computed. [2020-10-12 16:05:44,690 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-10-12 16:05:44,690 INFO L268 CegarLoopResult]: For program point L270(line 270) no Hoare annotation was computed. [2020-10-12 16:05:44,690 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 212) no Hoare annotation was computed. [2020-10-12 16:05:44,691 INFO L268 CegarLoopResult]: For program point L39(lines 39 433) no Hoare annotation was computed. [2020-10-12 16:05:44,691 INFO L268 CegarLoopResult]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 372) no Hoare annotation was computed. [2020-10-12 16:05:44,691 INFO L268 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-10-12 16:05:44,691 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-10-12 16:05:44,691 INFO L268 CegarLoopResult]: For program point L370(lines 370 393) no Hoare annotation was computed. [2020-10-12 16:05:44,691 INFO L268 CegarLoopResult]: For program point L81(lines 81 412) no Hoare annotation was computed. [2020-10-12 16:05:44,691 INFO L268 CegarLoopResult]: For program point L304(lines 304 314) no Hoare annotation was computed. [2020-10-12 16:05:44,691 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 306) no Hoare annotation was computed. [2020-10-12 16:05:44,692 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 111) no Hoare annotation was computed. [2020-10-12 16:05:44,692 INFO L268 CegarLoopResult]: For program point L222(lines 222 342) no Hoare annotation was computed. [2020-10-12 16:05:44,692 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-12 16:05:44,692 INFO L268 CegarLoopResult]: For program point L57(lines 57 430) no Hoare annotation was computed. [2020-10-12 16:05:44,692 INFO L264 CegarLoopResult]: At program point L313(lines 228 342) the Hoare annotation is: (and (<= 0 main_~main__c~0) (= main_~__VERIFIER_assert__cond~3 1) (let ((.cse11 (+ main_~main__cp~0 1))) (let ((.cse0 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse1 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse3 (not (= main_~__VERIFIER_assert__cond~9 0))) (.cse4 (<= 1 main_~__VERIFIER_assert__cond~6)) (.cse5 (<= 1 main_~__VERIFIER_assert__cond~8)) (.cse6 (= main_~__VERIFIER_assert__cond~2 1)) (.cse7 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse8 (not (= main_~__VERIFIER_assert__cond~3 0))) (.cse9 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse10 (<= .cse11 main_~main__urilen~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (<= 1 main_~__VERIFIER_assert__cond~10)) (and (< .cse11 main_~main__urilen~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10)))) (<= 0 main_~main__cp~0) (<= 0 main_~main__scheme~0) (= |old(~__return_375~0)| ~__return_375~0)) [2020-10-12 16:05:44,692 INFO L268 CegarLoopResult]: For program point L280(lines 280 318) no Hoare annotation was computed. [2020-10-12 16:05:44,692 INFO L268 CegarLoopResult]: For program point L239(lines 239 329) no Hoare annotation was computed. [2020-10-12 16:05:44,693 INFO L268 CegarLoopResult]: For program point L173(lines 173 355) no Hoare annotation was computed. [2020-10-12 16:05:44,693 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 241) no Hoare annotation was computed. [2020-10-12 16:05:44,693 INFO L268 CegarLoopResult]: For program point L33(lines 33 434) no Hoare annotation was computed. [2020-10-12 16:05:44,693 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2020-10-12 16:05:44,693 INFO L268 CegarLoopResult]: For program point L372(line 372) no Hoare annotation was computed. [2020-10-12 16:05:44,693 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-10-12 16:05:44,693 INFO L268 CegarLoopResult]: For program point L306(line 306) no Hoare annotation was computed. [2020-10-12 16:05:44,693 INFO L268 CegarLoopResult]: For program point L141(lines 141 360) no Hoare annotation was computed. [2020-10-12 16:05:44,693 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 224) no Hoare annotation was computed. [2020-10-12 16:05:44,694 INFO L268 CegarLoopResult]: For program point L232(lines 232 336) no Hoare annotation was computed. [2020-10-12 16:05:44,694 INFO L268 CegarLoopResult]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2020-10-12 16:05:44,694 INFO L268 CegarLoopResult]: For program point L133(lines 133 395) no Hoare annotation was computed. [2020-10-12 16:05:44,694 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-10-12 16:05:44,694 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 143) no Hoare annotation was computed. [2020-10-12 16:05:44,694 INFO L268 CegarLoopResult]: For program point L59(lines 59 425) no Hoare annotation was computed. [2020-10-12 16:05:44,696 INFO L268 CegarLoopResult]: For program point L282(line 282) no Hoare annotation was computed. [2020-10-12 16:05:44,696 INFO L268 CegarLoopResult]: For program point L51(lines 51 431) no Hoare annotation was computed. [2020-10-12 16:05:44,696 INFO L268 CegarLoopResult]: For program point L241(line 241) no Hoare annotation was computed. [2020-10-12 16:05:44,697 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 270) no Hoare annotation was computed. [2020-10-12 16:05:44,697 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-12 16:05:44,697 INFO L268 CegarLoopResult]: For program point L109(lines 109 403) no Hoare annotation was computed. [2020-10-12 16:05:44,697 INFO L264 CegarLoopResult]: At program point L390(lines 127 401) the Hoare annotation is: (and (< 0 main_~main__scheme~0) (not (= main_~__VERIFIER_assert__cond~0 0)) (= main_~__VERIFIER_assert__cond~3 1) (= main_~__VERIFIER_assert__cond~2 1) (<= 0 main_~main__cp~0) (= |old(~__return_375~0)| ~__return_375~0) (not (= main_~__VERIFIER_assert__cond~1 0)) (<= (+ main_~main__cp~0 1) main_~main__urilen~0)) [2020-10-12 16:05:44,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 04:05:44 BoogieIcfgContainer [2020-10-12 16:05:44,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 16:05:44,741 INFO L168 Benchmark]: Toolchain (without parser) took 32280.64 ms. Allocated memory was 140.5 MB in the beginning and 559.4 MB in the end (delta: 418.9 MB). Free memory was 102.2 MB in the beginning and 280.7 MB in the end (delta: -178.5 MB). Peak memory consumption was 240.4 MB. Max. memory is 7.1 GB. [2020-10-12 16:05:44,742 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 16:05:44,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.00 ms. Allocated memory is still 140.5 MB. Free memory was 102.0 MB in the beginning and 88.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-10-12 16:05:44,744 INFO L168 Benchmark]: Boogie Preprocessor took 153.30 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 88.9 MB in the beginning and 181.2 MB in the end (delta: -92.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-10-12 16:05:44,745 INFO L168 Benchmark]: RCFGBuilder took 488.39 ms. Allocated memory is still 203.9 MB. Free memory was 181.2 MB in the beginning and 153.6 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2020-10-12 16:05:44,750 INFO L168 Benchmark]: TraceAbstraction took 31308.82 ms. Allocated memory was 203.9 MB in the beginning and 559.4 MB in the end (delta: 355.5 MB). Free memory was 153.0 MB in the beginning and 280.7 MB in the end (delta: -127.7 MB). Peak memory consumption was 227.8 MB. Max. memory is 7.1 GB. [2020-10-12 16:05:44,753 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 325.00 ms. Allocated memory is still 140.5 MB. Free memory was 102.0 MB in the beginning and 88.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 153.30 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 88.9 MB in the beginning and 181.2 MB in the end (delta: -92.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 488.39 ms. Allocated memory is still 203.9 MB. Free memory was 181.2 MB in the beginning and 153.6 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31308.82 ms. Allocated memory was 203.9 MB in the beginning and 559.4 MB in the end (delta: 355.5 MB). Free memory was 153.0 MB in the beginning and 280.7 MB in the end (delta: -127.7 MB). Peak memory consumption was 227.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 306]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 372]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 187]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 212]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 282]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 224]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 241]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 294]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 270]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 143]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 253]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 384]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 111]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 155]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 123]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 95]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((((0 < main__scheme && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && 0 <= main__cp) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: !(__VERIFIER_assert__cond == 0) && \old(__return_375) == __return_375 - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: ((((0 <= main__c && __VERIFIER_assert__cond == 1) && ((((((((((((!(__VERIFIER_assert__cond == 0) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen) && 1 <= __VERIFIER_assert__cond) || (((((((((((main__cp + 1 < main__urilen && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen))) && 0 <= main__cp) && 0 <= main__scheme) && \old(__return_375) == __return_375 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: ((((((0 < main__scheme && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && 0 <= main__cp) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: (((((((((((((((((((!(__VERIFIER_assert__cond == 0) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 0 <= main__cp) && 1 <= main__urilen) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) || (((((((((((((((!(__VERIFIER_assert__cond == 0) && main__c + 2 <= main__tokenlen) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 0 <= main__cp) && 1 <= main__urilen) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond)) && 0 <= main__c) && main__cp + 2 <= main__urilen) && 0 <= main__scheme) && \old(__return_375) == __return_375 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.7s, OverallIterations: 23, TraceHistogramMax: 2, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1313 SDtfs, 4056 SDslu, 331 SDs, 0 SdLazy, 2340 SolverSat, 229 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 261 GetRequests, 83 SyntacticMatches, 5 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 341 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 14 NumberOfFragments, 321 HoareAnnotationTreeSize, 9 FomulaSimplifications, 4437980 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 9 FomulaSimplificationsInter, 200025 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 24.8s InterpolantComputationTime, 724 NumberOfCodeBlocks, 724 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 701 ConstructedInterpolants, 0 QuantifiedInterpolants, 51340 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 20 PerfectInterpolantSequences, 3/7 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...