/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=NARROWEST --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/ssh-simplified/s3_srvr_1.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 15:40:28,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 15:40:28,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 15:40:28,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 15:40:28,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 15:40:28,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 15:40:28,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 15:40:28,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 15:40:28,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 15:40:28,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 15:40:28,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 15:40:28,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 15:40:28,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 15:40:28,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 15:40:28,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 15:40:28,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 15:40:28,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 15:40:28,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 15:40:28,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 15:40:28,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 15:40:28,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 15:40:28,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 15:40:28,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 15:40:28,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 15:40:28,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 15:40:28,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 15:40:28,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 15:40:28,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 15:40:28,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 15:40:28,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 15:40:28,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 15:40:28,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 15:40:28,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 15:40:28,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 15:40:28,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 15:40:28,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 15:40:28,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 15:40:28,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 15:40:28,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 15:40:28,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 15:40:28,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 15:40:28,190 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 [2020-10-13 15:40:28,234 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 15:40:28,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 15:40:28,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 15:40:28,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 15:40:28,237 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 15:40:28,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 15:40:28,238 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 15:40:28,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 15:40:28,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 15:40:28,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 15:40:28,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 15:40:28,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 15:40:28,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 15:40:28,241 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 15:40:28,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 15:40:28,241 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 15:40:28,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 15:40:28,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 15:40:28,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 15:40:28,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 15:40:28,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 15:40:28,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 15:40:28,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 15:40:28,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 15:40:28,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 15:40:28,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 15:40:28,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 15:40:28,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 15:40:28,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 15:40:28,244 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 15:40:28,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 15:40:28,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 15:40:28,572 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 15:40:28,573 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 15:40:28,574 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 15:40:28,575 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1.cil-2.c [2020-10-13 15:40:28,643 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33a6d28a6/eef494bfc0a545b4a5413c336beb8643/FLAG55b5588b9 [2020-10-13 15:40:29,215 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 15:40:29,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_1.cil-2.c [2020-10-13 15:40:29,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33a6d28a6/eef494bfc0a545b4a5413c336beb8643/FLAG55b5588b9 [2020-10-13 15:40:29,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33a6d28a6/eef494bfc0a545b4a5413c336beb8643 [2020-10-13 15:40:29,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 15:40:29,485 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 15:40:29,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 15:40:29,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 15:40:29,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 15:40:29,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:40:29" (1/1) ... [2020-10-13 15:40:29,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@693e2903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:29, skipping insertion in model container [2020-10-13 15:40:29,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:40:29" (1/1) ... [2020-10-13 15:40:29,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 15:40:29,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 15:40:29,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 15:40:29,823 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 15:40:30,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 15:40:30,018 INFO L208 MainTranslator]: Completed translation [2020-10-13 15:40:30,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:30 WrapperNode [2020-10-13 15:40:30,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 15:40:30,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 15:40:30,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 15:40:30,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 15:40:30,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:30" (1/1) ... [2020-10-13 15:40:30,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:30" (1/1) ... [2020-10-13 15:40:30,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:30" (1/1) ... [2020-10-13 15:40:30,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:30" (1/1) ... [2020-10-13 15:40:30,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:30" (1/1) ... [2020-10-13 15:40:30,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:30" (1/1) ... [2020-10-13 15:40:30,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:30" (1/1) ... [2020-10-13 15:40:30,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 15:40:30,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 15:40:30,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 15:40:30,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 15:40:30,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:30" (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 [2020-10-13 15:40:30,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 15:40:30,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 15:40:30,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-10-13 15:40:30,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR [2020-10-13 15:40:30,156 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 15:40:30,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 15:40:30,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 15:40:30,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 15:40:30,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-13 15:40:30,157 INFO L130 BoogieDeclarations]: Found specification of procedure ERR [2020-10-13 15:40:30,157 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-10-13 15:40:30,157 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 15:40:30,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 15:40:30,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 15:40:30,378 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-13 15:40:30,874 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-10-13 15:40:30,875 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-10-13 15:40:30,887 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 15:40:30,888 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 15:40:30,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:40:30 BoogieIcfgContainer [2020-10-13 15:40:30,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 15:40:30,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 15:40:30,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 15:40:30,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 15:40:30,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 03:40:29" (1/3) ... [2020-10-13 15:40:30,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c2ab2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 03:40:30, skipping insertion in model container [2020-10-13 15:40:30,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:30" (2/3) ... [2020-10-13 15:40:30,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c2ab2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 03:40:30, skipping insertion in model container [2020-10-13 15:40:30,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:40:30" (3/3) ... [2020-10-13 15:40:30,903 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-2.c [2020-10-13 15:40:30,914 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 15:40:30,922 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 15:40:30,937 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 15:40:30,963 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 15:40:30,963 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 15:40:30,963 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 15:40:30,964 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 15:40:30,964 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 15:40:30,964 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 15:40:30,964 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 15:40:30,964 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 15:40:30,986 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2020-10-13 15:40:30,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 15:40:30,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:30,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:30,998 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:31,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:31,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1696698376, now seen corresponding path program 1 times [2020-10-13 15:40:31,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:31,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336219724] [2020-10-13 15:40:31,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:31,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:31,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:31,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:31,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:31,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 15:40:31,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:40:31,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-10-13 15:40:31,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:31,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:40:31,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 15:40:31,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 15:40:31,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 15:40:31,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:31,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:31,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:31,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:31,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:31,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:31,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:31,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:31,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:31,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:31,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:31,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 15:40:31,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336219724] [2020-10-13 15:40:31,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:31,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:40:31,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22235789] [2020-10-13 15:40:31,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:40:31,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:31,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:40:31,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:40:31,731 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 5 states. [2020-10-13 15:40:32,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:32,038 INFO L93 Difference]: Finished difference Result 319 states and 533 transitions. [2020-10-13 15:40:32,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:40:32,040 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-10-13 15:40:32,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:32,052 INFO L225 Difference]: With dead ends: 319 [2020-10-13 15:40:32,052 INFO L226 Difference]: Without dead ends: 157 [2020-10-13 15:40:32,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:40:32,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-13 15:40:32,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 154. [2020-10-13 15:40:32,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-13 15:40:32,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 228 transitions. [2020-10-13 15:40:32,115 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 228 transitions. Word has length 51 [2020-10-13 15:40:32,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:32,116 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 228 transitions. [2020-10-13 15:40:32,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:40:32,116 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 228 transitions. [2020-10-13 15:40:32,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 15:40:32,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:32,120 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:32,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 15:40:32,121 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:32,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:32,121 INFO L82 PathProgramCache]: Analyzing trace with hash 2093113011, now seen corresponding path program 1 times [2020-10-13 15:40:32,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:32,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593894060] [2020-10-13 15:40:32,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:32,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:32,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:32,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:32,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:32,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 15:40:32,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:40:32,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-13 15:40:32,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:32,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-13 15:40:32,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 15:40:32,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:40:32,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:32,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:32,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:32,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:32,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:32,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 15:40:32,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:32,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:32,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:32,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:32,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:40:32,505 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 15:40:32,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593894060] [2020-10-13 15:40:32,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:32,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:32,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700225287] [2020-10-13 15:40:32,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:32,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:32,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:32,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:32,537 INFO L87 Difference]: Start difference. First operand 154 states and 228 transitions. Second operand 3 states. [2020-10-13 15:40:32,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:32,758 INFO L93 Difference]: Finished difference Result 320 states and 483 transitions. [2020-10-13 15:40:32,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:32,760 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-10-13 15:40:32,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:32,764 INFO L225 Difference]: With dead ends: 320 [2020-10-13 15:40:32,764 INFO L226 Difference]: Without dead ends: 179 [2020-10-13 15:40:32,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:32,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-10-13 15:40:32,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 175. [2020-10-13 15:40:32,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-10-13 15:40:32,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 254 transitions. [2020-10-13 15:40:32,804 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 254 transitions. Word has length 67 [2020-10-13 15:40:32,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:32,805 INFO L479 AbstractCegarLoop]: Abstraction has 175 states and 254 transitions. [2020-10-13 15:40:32,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:32,805 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 254 transitions. [2020-10-13 15:40:32,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-13 15:40:32,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:32,810 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:32,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 15:40:32,810 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:32,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:32,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1225245954, now seen corresponding path program 1 times [2020-10-13 15:40:32,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:32,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475061710] [2020-10-13 15:40:32,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:32,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:32,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:32,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:33,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:33,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 15:40:33,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:40:33,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-13 15:40:33,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:33,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:33,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 15:40:33,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 15:40:33,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:33,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:33,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:33,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:33,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:33,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:33,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:33,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:33,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:33,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:33,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:33,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-13 15:40:33,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475061710] [2020-10-13 15:40:33,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:33,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:33,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498742880] [2020-10-13 15:40:33,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:33,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:33,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:33,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:33,069 INFO L87 Difference]: Start difference. First operand 175 states and 254 transitions. Second operand 3 states. [2020-10-13 15:40:33,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:33,335 INFO L93 Difference]: Finished difference Result 383 states and 574 transitions. [2020-10-13 15:40:33,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:33,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2020-10-13 15:40:33,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:33,339 INFO L225 Difference]: With dead ends: 383 [2020-10-13 15:40:33,340 INFO L226 Difference]: Without dead ends: 221 [2020-10-13 15:40:33,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:33,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-10-13 15:40:33,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 217. [2020-10-13 15:40:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-13 15:40:33,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 301 transitions. [2020-10-13 15:40:33,375 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 301 transitions. Word has length 88 [2020-10-13 15:40:33,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:33,376 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 301 transitions. [2020-10-13 15:40:33,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:33,378 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 301 transitions. [2020-10-13 15:40:33,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-13 15:40:33,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:33,380 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:33,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 15:40:33,381 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:33,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:33,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1020333500, now seen corresponding path program 1 times [2020-10-13 15:40:33,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:33,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119426871] [2020-10-13 15:40:33,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:33,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:33,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:33,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:33,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:33,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 15:40:33,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:40:33,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-13 15:40:33,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:33,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:33,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 15:40:33,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 15:40:33,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:33,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:33,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:33,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:33,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:33,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:33,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:40:33,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:33,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:33,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:33,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:33,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:33,650 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-13 15:40:33,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119426871] [2020-10-13 15:40:33,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:33,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:33,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922549529] [2020-10-13 15:40:33,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:33,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:33,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:33,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:33,660 INFO L87 Difference]: Start difference. First operand 217 states and 301 transitions. Second operand 3 states. [2020-10-13 15:40:33,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:33,840 INFO L93 Difference]: Finished difference Result 448 states and 632 transitions. [2020-10-13 15:40:33,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:33,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2020-10-13 15:40:33,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:33,844 INFO L225 Difference]: With dead ends: 448 [2020-10-13 15:40:33,846 INFO L226 Difference]: Without dead ends: 244 [2020-10-13 15:40:33,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:33,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-10-13 15:40:33,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 240. [2020-10-13 15:40:33,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-10-13 15:40:33,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 329 transitions. [2020-10-13 15:40:33,880 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 329 transitions. Word has length 88 [2020-10-13 15:40:33,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:33,881 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 329 transitions. [2020-10-13 15:40:33,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:33,881 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 329 transitions. [2020-10-13 15:40:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 15:40:33,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:33,887 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:33,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 15:40:33,887 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:33,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:33,888 INFO L82 PathProgramCache]: Analyzing trace with hash -201242879, now seen corresponding path program 1 times [2020-10-13 15:40:33,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:33,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282457731] [2020-10-13 15:40:33,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:33,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:34,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:34,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:34,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:34,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 15:40:34,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:40:34,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-13 15:40:34,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:34,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:34,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 15:40:34,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 15:40:34,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:34,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:34,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:34,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:34,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:34,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:34,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:34,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:34,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:34,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:34,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:34,302 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-13 15:40:34,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282457731] [2020-10-13 15:40:34,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:34,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:34,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453532230] [2020-10-13 15:40:34,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:34,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:34,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:34,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:34,306 INFO L87 Difference]: Start difference. First operand 240 states and 329 transitions. Second operand 3 states. [2020-10-13 15:40:34,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:34,470 INFO L93 Difference]: Finished difference Result 505 states and 708 transitions. [2020-10-13 15:40:34,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:34,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-10-13 15:40:34,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:34,473 INFO L225 Difference]: With dead ends: 505 [2020-10-13 15:40:34,473 INFO L226 Difference]: Without dead ends: 278 [2020-10-13 15:40:34,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:34,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-13 15:40:34,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 265. [2020-10-13 15:40:34,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-10-13 15:40:34,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 359 transitions. [2020-10-13 15:40:34,485 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 359 transitions. Word has length 109 [2020-10-13 15:40:34,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:34,486 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 359 transitions. [2020-10-13 15:40:34,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:34,487 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 359 transitions. [2020-10-13 15:40:34,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-13 15:40:34,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:34,488 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:34,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 15:40:34,489 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:34,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:34,489 INFO L82 PathProgramCache]: Analyzing trace with hash -105487368, now seen corresponding path program 1 times [2020-10-13 15:40:34,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:34,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542761586] [2020-10-13 15:40:34,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:34,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:34,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:34,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-13 15:40:34,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:34,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-13 15:40:34,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:34,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:34,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-13 15:40:34,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 15:40:34,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:34,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:34,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:34,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:34,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:34,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:34,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:34,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:34,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:34,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:34,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:34,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:34,735 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-13 15:40:34,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542761586] [2020-10-13 15:40:34,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:34,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:34,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334362227] [2020-10-13 15:40:34,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:34,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:34,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:34,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:34,738 INFO L87 Difference]: Start difference. First operand 265 states and 359 transitions. Second operand 3 states. [2020-10-13 15:40:34,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:34,782 INFO L93 Difference]: Finished difference Result 766 states and 1041 transitions. [2020-10-13 15:40:34,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:34,783 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-10-13 15:40:34,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:34,786 INFO L225 Difference]: With dead ends: 766 [2020-10-13 15:40:34,786 INFO L226 Difference]: Without dead ends: 514 [2020-10-13 15:40:34,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:34,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-13 15:40:34,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-13 15:40:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-13 15:40:34,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 697 transitions. [2020-10-13 15:40:34,806 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 697 transitions. Word has length 128 [2020-10-13 15:40:34,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:34,807 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 697 transitions. [2020-10-13 15:40:34,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:34,807 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 697 transitions. [2020-10-13 15:40:34,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-13 15:40:34,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:34,809 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:34,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 15:40:34,810 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:34,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:34,810 INFO L82 PathProgramCache]: Analyzing trace with hash -518008441, now seen corresponding path program 1 times [2020-10-13 15:40:34,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:34,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500472050] [2020-10-13 15:40:34,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:34,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:34,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:34,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:35,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:35,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:35,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 15:40:35,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 15:40:35,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-10-13 15:40:35,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:35,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 15:40:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 15:40:35,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:40:35,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:35,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:35,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:35,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:35,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:35,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:35,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:35,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:35,268 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-13 15:40:35,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500472050] [2020-10-13 15:40:35,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:35,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:35,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526391161] [2020-10-13 15:40:35,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:35,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:35,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:35,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:35,271 INFO L87 Difference]: Start difference. First operand 514 states and 697 transitions. Second operand 3 states. [2020-10-13 15:40:35,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:35,481 INFO L93 Difference]: Finished difference Result 1121 states and 1565 transitions. [2020-10-13 15:40:35,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:35,482 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2020-10-13 15:40:35,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:35,486 INFO L225 Difference]: With dead ends: 1121 [2020-10-13 15:40:35,486 INFO L226 Difference]: Without dead ends: 620 [2020-10-13 15:40:35,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:35,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2020-10-13 15:40:35,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 596. [2020-10-13 15:40:35,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-10-13 15:40:35,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 795 transitions. [2020-10-13 15:40:35,511 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 795 transitions. Word has length 166 [2020-10-13 15:40:35,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:35,512 INFO L479 AbstractCegarLoop]: Abstraction has 596 states and 795 transitions. [2020-10-13 15:40:35,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:35,512 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 795 transitions. [2020-10-13 15:40:35,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-13 15:40:35,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:35,515 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:35,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 15:40:35,516 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:35,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:35,516 INFO L82 PathProgramCache]: Analyzing trace with hash -364366715, now seen corresponding path program 1 times [2020-10-13 15:40:35,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:35,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398920861] [2020-10-13 15:40:35,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:35,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:35,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:35,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:35,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:36,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:36,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:36,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:36,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:36,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 15:40:36,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 15:40:36,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 963 [2020-10-13 15:40:36,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:36,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:36,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-13 15:40:36,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 15:40:36,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:40:36,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:36,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:36,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:36,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:36,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:36,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:36,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:36,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:36,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:36,569 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-13 15:40:36,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398920861] [2020-10-13 15:40:36,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:36,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:36,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173739071] [2020-10-13 15:40:36,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:36,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:36,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:36,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:36,571 INFO L87 Difference]: Start difference. First operand 596 states and 795 transitions. Second operand 3 states. [2020-10-13 15:40:36,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:36,767 INFO L93 Difference]: Finished difference Result 1249 states and 1699 transitions. [2020-10-13 15:40:36,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:36,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2020-10-13 15:40:36,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:36,772 INFO L225 Difference]: With dead ends: 1249 [2020-10-13 15:40:36,773 INFO L226 Difference]: Without dead ends: 666 [2020-10-13 15:40:36,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:36,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2020-10-13 15:40:36,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 650. [2020-10-13 15:40:36,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-10-13 15:40:36,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 859 transitions. [2020-10-13 15:40:36,801 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 859 transitions. Word has length 173 [2020-10-13 15:40:36,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:36,802 INFO L479 AbstractCegarLoop]: Abstraction has 650 states and 859 transitions. [2020-10-13 15:40:36,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:36,802 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 859 transitions. [2020-10-13 15:40:36,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-13 15:40:36,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:36,806 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:36,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 15:40:36,807 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:36,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:36,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1822298125, now seen corresponding path program 1 times [2020-10-13 15:40:36,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:36,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480957816] [2020-10-13 15:40:36,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:36,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:36,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:36,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:36,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:37,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:37,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:37,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:37,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:38,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:38,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-13 15:40:38,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 15:40:38,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1571 [2020-10-13 15:40:38,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:38,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:38,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-13 15:40:38,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 15:40:38,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:38,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:38,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:38,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:38,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:38,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:38,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:38,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:38,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:38,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:38,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:38,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:38,463 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-13 15:40:38,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480957816] [2020-10-13 15:40:38,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:38,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:38,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274133048] [2020-10-13 15:40:38,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:38,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:38,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:38,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:38,466 INFO L87 Difference]: Start difference. First operand 650 states and 859 transitions. Second operand 3 states. [2020-10-13 15:40:38,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:38,486 INFO L93 Difference]: Finished difference Result 1250 states and 1650 transitions. [2020-10-13 15:40:38,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:38,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-10-13 15:40:38,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:38,490 INFO L225 Difference]: With dead ends: 1250 [2020-10-13 15:40:38,490 INFO L226 Difference]: Without dead ends: 603 [2020-10-13 15:40:38,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:38,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-10-13 15:40:38,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2020-10-13 15:40:38,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-10-13 15:40:38,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 780 transitions. [2020-10-13 15:40:38,511 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 780 transitions. Word has length 180 [2020-10-13 15:40:38,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:38,511 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 780 transitions. [2020-10-13 15:40:38,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:38,512 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 780 transitions. [2020-10-13 15:40:38,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-13 15:40:38,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:38,515 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:38,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 15:40:38,516 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:38,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:38,516 INFO L82 PathProgramCache]: Analyzing trace with hash 279700140, now seen corresponding path program 1 times [2020-10-13 15:40:38,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:38,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947715413] [2020-10-13 15:40:38,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:38,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:38,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:38,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:38,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:38,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:39,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:39,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:39,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:39,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-13 15:40:39,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 15:40:39,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 855 [2020-10-13 15:40:39,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:39,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:39,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-13 15:40:39,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 15:40:39,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:39,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:39,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:39,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:39,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:39,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:39,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 15:40:39,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:39,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:39,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:39,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:39,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:39,486 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-10-13 15:40:39,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947715413] [2020-10-13 15:40:39,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:39,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:39,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672442668] [2020-10-13 15:40:39,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:39,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:39,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:39,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:39,489 INFO L87 Difference]: Start difference. First operand 603 states and 780 transitions. Second operand 3 states. [2020-10-13 15:40:39,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:39,669 INFO L93 Difference]: Finished difference Result 1244 states and 1634 transitions. [2020-10-13 15:40:39,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:39,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2020-10-13 15:40:39,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:39,673 INFO L225 Difference]: With dead ends: 1244 [2020-10-13 15:40:39,673 INFO L226 Difference]: Without dead ends: 665 [2020-10-13 15:40:39,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:39,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-10-13 15:40:39,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 661. [2020-10-13 15:40:39,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2020-10-13 15:40:39,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 848 transitions. [2020-10-13 15:40:39,695 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 848 transitions. Word has length 196 [2020-10-13 15:40:39,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:39,696 INFO L479 AbstractCegarLoop]: Abstraction has 661 states and 848 transitions. [2020-10-13 15:40:39,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:39,696 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 848 transitions. [2020-10-13 15:40:39,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-13 15:40:39,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:39,699 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:39,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 15:40:39,700 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:39,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:39,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1605973906, now seen corresponding path program 1 times [2020-10-13 15:40:39,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:39,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [826981015] [2020-10-13 15:40:39,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:39,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:39,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:39,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:39,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:40,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:41,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:41,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:41,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:42,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:42,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-13 15:40:42,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 15:40:42,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2538 [2020-10-13 15:40:42,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:42,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:42,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-10-13 15:40:42,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 15:40:42,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:42,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:42,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:42,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:42,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:42,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:42,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:42,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:42,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:42,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:42,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:42,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:42,346 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-10-13 15:40:42,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [826981015] [2020-10-13 15:40:42,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:42,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:42,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83677350] [2020-10-13 15:40:42,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:42,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:42,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:42,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:42,348 INFO L87 Difference]: Start difference. First operand 661 states and 848 transitions. Second operand 3 states. [2020-10-13 15:40:42,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:42,521 INFO L93 Difference]: Finished difference Result 1360 states and 1774 transitions. [2020-10-13 15:40:42,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:42,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-10-13 15:40:42,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:42,526 INFO L225 Difference]: With dead ends: 1360 [2020-10-13 15:40:42,526 INFO L226 Difference]: Without dead ends: 723 [2020-10-13 15:40:42,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:42,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2020-10-13 15:40:42,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2020-10-13 15:40:42,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2020-10-13 15:40:42,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 920 transitions. [2020-10-13 15:40:42,556 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 920 transitions. Word has length 201 [2020-10-13 15:40:42,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:42,556 INFO L479 AbstractCegarLoop]: Abstraction has 723 states and 920 transitions. [2020-10-13 15:40:42,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:42,556 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 920 transitions. [2020-10-13 15:40:42,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-13 15:40:42,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:42,561 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:42,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 15:40:42,562 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:42,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:42,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1473429349, now seen corresponding path program 1 times [2020-10-13 15:40:42,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:42,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806572595] [2020-10-13 15:40:42,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:42,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:42,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:42,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:42,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:43,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:44,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:44,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:44,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:46,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:46,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-13 15:40:46,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 15:40:46,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3419 [2020-10-13 15:40:46,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-10-13 15:40:46,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 15:40:46,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:46,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:46,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:46,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:46,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:46,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:46,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:46,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:46,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:46,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:46,119 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2020-10-13 15:40:46,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806572595] [2020-10-13 15:40:46,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:46,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:46,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826543310] [2020-10-13 15:40:46,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:46,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:46,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:46,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:46,122 INFO L87 Difference]: Start difference. First operand 723 states and 920 transitions. Second operand 3 states. [2020-10-13 15:40:46,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:46,348 INFO L93 Difference]: Finished difference Result 1508 states and 1964 transitions. [2020-10-13 15:40:46,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:46,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 230 [2020-10-13 15:40:46,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:46,354 INFO L225 Difference]: With dead ends: 1508 [2020-10-13 15:40:46,354 INFO L226 Difference]: Without dead ends: 719 [2020-10-13 15:40:46,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:46,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-10-13 15:40:46,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2020-10-13 15:40:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2020-10-13 15:40:46,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 912 transitions. [2020-10-13 15:40:46,380 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 912 transitions. Word has length 230 [2020-10-13 15:40:46,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:46,381 INFO L479 AbstractCegarLoop]: Abstraction has 719 states and 912 transitions. [2020-10-13 15:40:46,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:46,381 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 912 transitions. [2020-10-13 15:40:46,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-13 15:40:46,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:46,385 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:46,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 15:40:46,386 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:46,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:46,386 INFO L82 PathProgramCache]: Analyzing trace with hash 678328095, now seen corresponding path program 1 times [2020-10-13 15:40:46,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:46,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213403519] [2020-10-13 15:40:46,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:46,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:46,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:46,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:46,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:47,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:47,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:48,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:48,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-13 15:40:48,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 15:40:48,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1626 [2020-10-13 15:40:48,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:48,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:40:48,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-13 15:40:48,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 15:40:48,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:48,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:48,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:48,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:48,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:48,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:48,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:48,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:48,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:48,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:48,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:48,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:40:48,382 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 438 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2020-10-13 15:40:48,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213403519] [2020-10-13 15:40:48,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:48,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:40:48,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987456753] [2020-10-13 15:40:48,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:40:48,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:48,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:40:48,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:40:48,385 INFO L87 Difference]: Start difference. First operand 719 states and 912 transitions. Second operand 5 states. [2020-10-13 15:40:48,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:48,626 INFO L93 Difference]: Finished difference Result 4747 states and 6043 transitions. [2020-10-13 15:40:48,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 15:40:48,627 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 270 [2020-10-13 15:40:48,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:48,649 INFO L225 Difference]: With dead ends: 4747 [2020-10-13 15:40:48,649 INFO L226 Difference]: Without dead ends: 4052 [2020-10-13 15:40:48,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 15:40:48,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4052 states. [2020-10-13 15:40:48,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4052 to 1409. [2020-10-13 15:40:48,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1409 states. [2020-10-13 15:40:48,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 1788 transitions. [2020-10-13 15:40:48,753 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 1788 transitions. Word has length 270 [2020-10-13 15:40:48,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:48,753 INFO L479 AbstractCegarLoop]: Abstraction has 1409 states and 1788 transitions. [2020-10-13 15:40:48,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:40:48,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 1788 transitions. [2020-10-13 15:40:48,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-10-13 15:40:48,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:48,759 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:48,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 15:40:48,760 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:48,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:48,760 INFO L82 PathProgramCache]: Analyzing trace with hash -488952008, now seen corresponding path program 1 times [2020-10-13 15:40:48,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:48,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126181736] [2020-10-13 15:40:48,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:48,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:48,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:48,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:49,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:49,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:49,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:49,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-13 15:40:49,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 15:40:49,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 623 [2020-10-13 15:40:49,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:49,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 15:40:49,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-10-13 15:40:49,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 15:40:49,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:49,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:49,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:49,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:49,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:49,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:49,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:49,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:49,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:49,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:49,626 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 454 proven. 26 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-13 15:40:49,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126181736] [2020-10-13 15:40:49,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 15:40:49,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-10-13 15:40:49,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021934957] [2020-10-13 15:40:49,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 15:40:49,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:49,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 15:40:49,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 15:40:49,628 INFO L87 Difference]: Start difference. First operand 1409 states and 1788 transitions. Second operand 4 states. [2020-10-13 15:40:50,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:50,043 INFO L93 Difference]: Finished difference Result 4333 states and 5559 transitions. [2020-10-13 15:40:50,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:40:50,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 271 [2020-10-13 15:40:50,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:50,061 INFO L225 Difference]: With dead ends: 4333 [2020-10-13 15:40:50,061 INFO L226 Difference]: Without dead ends: 2948 [2020-10-13 15:40:50,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:40:50,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2020-10-13 15:40:50,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 1857. [2020-10-13 15:40:50,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1857 states. [2020-10-13 15:40:50,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1857 states to 1857 states and 2392 transitions. [2020-10-13 15:40:50,160 INFO L78 Accepts]: Start accepts. Automaton has 1857 states and 2392 transitions. Word has length 271 [2020-10-13 15:40:50,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:50,161 INFO L479 AbstractCegarLoop]: Abstraction has 1857 states and 2392 transitions. [2020-10-13 15:40:50,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 15:40:50,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1857 states and 2392 transitions. [2020-10-13 15:40:50,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-10-13 15:40:50,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:50,167 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:50,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 15:40:50,167 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:50,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:50,168 INFO L82 PathProgramCache]: Analyzing trace with hash -230386138, now seen corresponding path program 1 times [2020-10-13 15:40:50,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:50,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230038677] [2020-10-13 15:40:50,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:50,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:50,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:50,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:50,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:50,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:50,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-13 15:40:50,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 15:40:50,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 428 [2020-10-13 15:40:50,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:50,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:50,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-13 15:40:50,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 15:40:50,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:40:50,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:50,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:50,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:50,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:50,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:50,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:50,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:50,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:50,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:50,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:50,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:40:50,845 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2020-10-13 15:40:50,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230038677] [2020-10-13 15:40:50,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:50,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:50,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594173927] [2020-10-13 15:40:50,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:50,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:50,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:50,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:50,849 INFO L87 Difference]: Start difference. First operand 1857 states and 2392 transitions. Second operand 3 states. [2020-10-13 15:40:51,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:51,033 INFO L93 Difference]: Finished difference Result 5417 states and 6995 transitions. [2020-10-13 15:40:51,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:51,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 278 [2020-10-13 15:40:51,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:51,053 INFO L225 Difference]: With dead ends: 5417 [2020-10-13 15:40:51,053 INFO L226 Difference]: Without dead ends: 2711 [2020-10-13 15:40:51,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:51,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2020-10-13 15:40:51,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 2710. [2020-10-13 15:40:51,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2710 states. [2020-10-13 15:40:51,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2710 states to 2710 states and 3483 transitions. [2020-10-13 15:40:51,229 INFO L78 Accepts]: Start accepts. Automaton has 2710 states and 3483 transitions. Word has length 278 [2020-10-13 15:40:51,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:51,229 INFO L479 AbstractCegarLoop]: Abstraction has 2710 states and 3483 transitions. [2020-10-13 15:40:51,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:51,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2710 states and 3483 transitions. [2020-10-13 15:40:51,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-10-13 15:40:51,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:51,242 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:51,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 15:40:51,243 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:51,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:51,243 INFO L82 PathProgramCache]: Analyzing trace with hash 256586445, now seen corresponding path program 1 times [2020-10-13 15:40:51,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:51,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167517422] [2020-10-13 15:40:51,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:51,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:51,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:51,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:51,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:51,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:51,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:51,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-10-13 15:40:51,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 15:40:51,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 634 [2020-10-13 15:40:51,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:51,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:51,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-10-13 15:40:51,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 15:40:51,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:52,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:52,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:52,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:52,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:52,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:52,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 15:40:52,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:52,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:52,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:52,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:52,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:52,063 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2020-10-13 15:40:52,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167517422] [2020-10-13 15:40:52,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:52,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:52,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427781625] [2020-10-13 15:40:52,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:52,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:52,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:52,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:52,067 INFO L87 Difference]: Start difference. First operand 2710 states and 3483 transitions. Second operand 3 states. [2020-10-13 15:40:52,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:52,363 INFO L93 Difference]: Finished difference Result 5654 states and 7320 transitions. [2020-10-13 15:40:52,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:52,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 301 [2020-10-13 15:40:52,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:52,384 INFO L225 Difference]: With dead ends: 5654 [2020-10-13 15:40:52,385 INFO L226 Difference]: Without dead ends: 2968 [2020-10-13 15:40:52,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:52,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2020-10-13 15:40:52,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 2830. [2020-10-13 15:40:52,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2830 states. [2020-10-13 15:40:52,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2830 states to 2830 states and 3633 transitions. [2020-10-13 15:40:52,575 INFO L78 Accepts]: Start accepts. Automaton has 2830 states and 3633 transitions. Word has length 301 [2020-10-13 15:40:52,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:52,576 INFO L479 AbstractCegarLoop]: Abstraction has 2830 states and 3633 transitions. [2020-10-13 15:40:52,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:52,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2830 states and 3633 transitions. [2020-10-13 15:40:52,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-13 15:40:52,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:52,590 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:52,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 15:40:52,590 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:52,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:52,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1924419188, now seen corresponding path program 1 times [2020-10-13 15:40:52,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:52,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942109049] [2020-10-13 15:40:52,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:52,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:52,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:52,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:53,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:53,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:53,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:53,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-10-13 15:40:53,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 15:40:53,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 805 [2020-10-13 15:40:53,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:53,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:53,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 15:40:53,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 15:40:53,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:40:53,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:53,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:53,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:53,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:53,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:53,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:53,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:53,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:53,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:53,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:53,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:53,671 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2020-10-13 15:40:53,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942109049] [2020-10-13 15:40:53,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:53,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:53,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171998526] [2020-10-13 15:40:53,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:53,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:53,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:53,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:53,676 INFO L87 Difference]: Start difference. First operand 2830 states and 3633 transitions. Second operand 3 states. [2020-10-13 15:40:53,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:53,958 INFO L93 Difference]: Finished difference Result 6068 states and 7958 transitions. [2020-10-13 15:40:53,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:53,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 302 [2020-10-13 15:40:53,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:53,976 INFO L225 Difference]: With dead ends: 6068 [2020-10-13 15:40:53,976 INFO L226 Difference]: Without dead ends: 3262 [2020-10-13 15:40:53,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:53,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2020-10-13 15:40:54,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 3238. [2020-10-13 15:40:54,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3238 states. [2020-10-13 15:40:54,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3238 states to 3238 states and 4101 transitions. [2020-10-13 15:40:54,116 INFO L78 Accepts]: Start accepts. Automaton has 3238 states and 4101 transitions. Word has length 302 [2020-10-13 15:40:54,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:54,117 INFO L479 AbstractCegarLoop]: Abstraction has 3238 states and 4101 transitions. [2020-10-13 15:40:54,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:54,117 INFO L276 IsEmpty]: Start isEmpty. Operand 3238 states and 4101 transitions. [2020-10-13 15:40:54,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-10-13 15:40:54,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:54,125 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:54,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 15:40:54,125 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:54,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:54,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1409094856, now seen corresponding path program 1 times [2020-10-13 15:40:54,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:54,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795374485] [2020-10-13 15:40:54,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:54,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:54,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:54,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:54,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:54,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:54,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:54,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 343 [2020-10-13 15:40:54,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 15:40:54,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 807 [2020-10-13 15:40:54,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:54,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:54,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 220 [2020-10-13 15:40:54,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-13 15:40:54,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:55,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:55,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:55,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:55,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:55,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:55,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 15:40:55,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:55,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:55,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:55,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:55,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:55,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 569 proven. 0 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2020-10-13 15:40:55,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795374485] [2020-10-13 15:40:55,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:55,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:55,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156101560] [2020-10-13 15:40:55,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:55,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:55,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:55,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:55,174 INFO L87 Difference]: Start difference. First operand 3238 states and 4101 transitions. Second operand 3 states. [2020-10-13 15:40:55,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:55,440 INFO L93 Difference]: Finished difference Result 6908 states and 8942 transitions. [2020-10-13 15:40:55,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:55,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 333 [2020-10-13 15:40:55,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:55,460 INFO L225 Difference]: With dead ends: 6908 [2020-10-13 15:40:55,460 INFO L226 Difference]: Without dead ends: 3694 [2020-10-13 15:40:55,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:55,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2020-10-13 15:40:55,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3670. [2020-10-13 15:40:55,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3670 states. [2020-10-13 15:40:55,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 4593 transitions. [2020-10-13 15:40:55,609 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 4593 transitions. Word has length 333 [2020-10-13 15:40:55,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:55,610 INFO L479 AbstractCegarLoop]: Abstraction has 3670 states and 4593 transitions. [2020-10-13 15:40:55,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:55,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 4593 transitions. [2020-10-13 15:40:55,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-13 15:40:55,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:55,618 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 6, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:55,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 15:40:55,619 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:55,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:55,619 INFO L82 PathProgramCache]: Analyzing trace with hash -12434639, now seen corresponding path program 1 times [2020-10-13 15:40:55,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:55,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416019725] [2020-10-13 15:40:55,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:55,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:55,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:55,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:56,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:56,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 376 [2020-10-13 15:40:56,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:40:56,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-10-13 15:40:56,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:56,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:56,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 288 [2020-10-13 15:40:56,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 15:40:56,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:56,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:56,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:56,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:56,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:56,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:56,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 15:40:56,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:56,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 466 proven. 0 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2020-10-13 15:40:56,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416019725] [2020-10-13 15:40:56,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:56,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:56,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340548240] [2020-10-13 15:40:56,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:56,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:56,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:56,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:56,360 INFO L87 Difference]: Start difference. First operand 3670 states and 4593 transitions. Second operand 3 states. [2020-10-13 15:40:56,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:56,488 INFO L93 Difference]: Finished difference Result 7502 states and 9370 transitions. [2020-10-13 15:40:56,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:56,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 366 [2020-10-13 15:40:56,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:56,527 INFO L225 Difference]: With dead ends: 7502 [2020-10-13 15:40:56,527 INFO L226 Difference]: Without dead ends: 3856 [2020-10-13 15:40:56,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:56,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3856 states. [2020-10-13 15:40:56,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3856 to 3856. [2020-10-13 15:40:56,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3856 states. [2020-10-13 15:40:56,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 4801 transitions. [2020-10-13 15:40:56,724 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 4801 transitions. Word has length 366 [2020-10-13 15:40:56,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:56,725 INFO L479 AbstractCegarLoop]: Abstraction has 3856 states and 4801 transitions. [2020-10-13 15:40:56,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:56,726 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 4801 transitions. [2020-10-13 15:40:56,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2020-10-13 15:40:56,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:56,742 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:56,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 15:40:56,743 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:56,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:56,743 INFO L82 PathProgramCache]: Analyzing trace with hash 816842574, now seen corresponding path program 1 times [2020-10-13 15:40:56,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:56,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542268738] [2020-10-13 15:40:56,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:56,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:56,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:57,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:57,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:57,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:57,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:57,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 447 [2020-10-13 15:40:57,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 15:40:57,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1104 [2020-10-13 15:40:57,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:57,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 15:40:57,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 372 [2020-10-13 15:40:57,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 15:40:57,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:58,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:58,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:58,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:58,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:58,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:58,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 15:40:58,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:58,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:58,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:58,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:58,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:58,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1963 backedges. 579 proven. 26 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2020-10-13 15:40:58,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542268738] [2020-10-13 15:40:58,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 15:40:58,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-10-13 15:40:58,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990861875] [2020-10-13 15:40:58,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 15:40:58,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:58,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 15:40:58,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 15:40:58,331 INFO L87 Difference]: Start difference. First operand 3856 states and 4801 transitions. Second operand 4 states. [2020-10-13 15:40:58,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:58,819 INFO L93 Difference]: Finished difference Result 7019 states and 8821 transitions. [2020-10-13 15:40:58,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:40:58,819 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 437 [2020-10-13 15:40:58,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:58,834 INFO L225 Difference]: With dead ends: 7019 [2020-10-13 15:40:58,834 INFO L226 Difference]: Without dead ends: 3035 [2020-10-13 15:40:58,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:40:58,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3035 states. [2020-10-13 15:40:58,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3035 to 2463. [2020-10-13 15:40:58,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2463 states. [2020-10-13 15:40:58,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 2993 transitions. [2020-10-13 15:40:58,960 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 2993 transitions. Word has length 437 [2020-10-13 15:40:58,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:58,961 INFO L479 AbstractCegarLoop]: Abstraction has 2463 states and 2993 transitions. [2020-10-13 15:40:58,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 15:40:58,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 2993 transitions. [2020-10-13 15:40:58,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2020-10-13 15:40:58,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:58,975 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:58,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 15:40:58,975 INFO L427 AbstractCegarLoop]: === Iteration 21 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:58,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:58,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1094199984, now seen corresponding path program 1 times [2020-10-13 15:40:58,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:58,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [410357935] [2020-10-13 15:40:58,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:59,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:59,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:59,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:59,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:59,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 447 [2020-10-13 15:40:59,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 15:40:59,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-10-13 15:40:59,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 15:40:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 372 [2020-10-13 15:40:59,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 15:40:59,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:59,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:59,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:59,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:59,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:59,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:59,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 15:40:59,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:59,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:59,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:59,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:59,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:59,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1963 backedges. 579 proven. 26 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2020-10-13 15:40:59,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [410357935] [2020-10-13 15:40:59,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 15:40:59,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-10-13 15:40:59,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909889729] [2020-10-13 15:40:59,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 15:40:59,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:59,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 15:40:59,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 15:40:59,788 INFO L87 Difference]: Start difference. First operand 2463 states and 2993 transitions. Second operand 4 states. [2020-10-13 15:41:00,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:41:00,019 INFO L93 Difference]: Finished difference Result 3890 states and 4764 transitions. [2020-10-13 15:41:00,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 15:41:00,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 437 [2020-10-13 15:41:00,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:41:00,022 INFO L225 Difference]: With dead ends: 3890 [2020-10-13 15:41:00,022 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 15:41:00,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:41:00,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 15:41:00,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 15:41:00,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 15:41:00,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 15:41:00,030 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 437 [2020-10-13 15:41:00,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:41:00,030 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 15:41:00,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 15:41:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 15:41:00,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 15:41:00,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 15:41:00,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 15:41:00,557 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 114 [2020-10-13 15:41:00,889 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 116 [2020-10-13 15:41:01,696 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 74 [2020-10-13 15:41:02,551 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 76 [2020-10-13 15:41:02,695 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 8 [2020-10-13 15:41:02,700 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-13 15:41:02,701 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 15:41:02,701 INFO L268 CegarLoopResult]: For program point ERRErr0ASSERT_VIOLATIONERROR_FUNCTION(line 618) no Hoare annotation was computed. [2020-10-13 15:41:02,701 INFO L268 CegarLoopResult]: For program point ERREXIT(lines 617 620) no Hoare annotation was computed. [2020-10-13 15:41:02,701 INFO L271 CegarLoopResult]: At program point ERRENTRY(lines 617 620) the Hoare annotation is: true [2020-10-13 15:41:02,701 INFO L268 CegarLoopResult]: For program point ERRFINAL(lines 617 620) no Hoare annotation was computed. [2020-10-13 15:41:02,702 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 15:41:02,702 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-13 15:41:02,702 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 15:41:02,702 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 15:41:02,702 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 621 632) the Hoare annotation is: true [2020-10-13 15:41:02,702 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 621 632) no Hoare annotation was computed. [2020-10-13 15:41:02,702 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 621 632) no Hoare annotation was computed. [2020-10-13 15:41:02,703 INFO L264 CegarLoopResult]: At program point L628(line 628) the Hoare annotation is: (= 8464 main_~s~0) [2020-10-13 15:41:02,703 INFO L268 CegarLoopResult]: For program point L628-1(line 628) no Hoare annotation was computed. [2020-10-13 15:41:02,703 INFO L268 CegarLoopResult]: For program point L465(lines 465 467) no Hoare annotation was computed. [2020-10-13 15:41:02,703 INFO L268 CegarLoopResult]: For program point L234(lines 234 237) no Hoare annotation was computed. [2020-10-13 15:41:02,703 INFO L264 CegarLoopResult]: At program point L201(lines 197 551) the Hoare annotation is: (let ((.cse0 (<= 8672 ssl3_accept_~s__state~0))) (or (and (<= ssl3_accept_~blastFlag~0 3) .cse0) (and (= ssl3_accept_~blastFlag~0 4) .cse0) (not (= 8464 |ssl3_accept_#in~initial_state|)))) [2020-10-13 15:41:02,704 INFO L264 CegarLoopResult]: At program point L102(lines 101 583) the Hoare annotation is: (or (not (= 8464 |ssl3_accept_#in~initial_state|)) (<= 8672 ssl3_accept_~s__state~0)) [2020-10-13 15:41:02,704 INFO L268 CegarLoopResult]: For program point L301(lines 301 308) no Hoare annotation was computed. [2020-10-13 15:41:02,704 INFO L268 CegarLoopResult]: For program point L301-2(lines 301 308) no Hoare annotation was computed. [2020-10-13 15:41:02,704 INFO L268 CegarLoopResult]: For program point L203(lines 203 549) no Hoare annotation was computed. [2020-10-13 15:41:02,704 INFO L268 CegarLoopResult]: For program point L170(lines 170 560) no Hoare annotation was computed. [2020-10-13 15:41:02,705 INFO L268 CegarLoopResult]: For program point L137(lines 137 571) no Hoare annotation was computed. [2020-10-13 15:41:02,705 INFO L268 CegarLoopResult]: For program point L104(lines 104 582) no Hoare annotation was computed. [2020-10-13 15:41:02,705 INFO L268 CegarLoopResult]: For program point L534(lines 534 540) no Hoare annotation was computed. [2020-10-13 15:41:02,705 INFO L268 CegarLoopResult]: For program point L534-1(lines 534 540) no Hoare annotation was computed. [2020-10-13 15:41:02,705 INFO L268 CegarLoopResult]: For program point L336(lines 336 360) no Hoare annotation was computed. [2020-10-13 15:41:02,706 INFO L271 CegarLoopResult]: At program point L204(lines 203 549) the Hoare annotation is: true [2020-10-13 15:41:02,706 INFO L264 CegarLoopResult]: At program point L171(lines 167 561) the Hoare annotation is: (or (not (= 8464 |ssl3_accept_#in~initial_state|)) (<= ssl3_accept_~blastFlag~0 3)) [2020-10-13 15:41:02,706 INFO L264 CegarLoopResult]: At program point L138(lines 134 572) the Hoare annotation is: (or (not (= 8464 |ssl3_accept_#in~initial_state|)) (<= ssl3_accept_~blastFlag~0 3)) [2020-10-13 15:41:02,706 INFO L268 CegarLoopResult]: For program point L271(lines 271 273) no Hoare annotation was computed. [2020-10-13 15:41:02,706 INFO L268 CegarLoopResult]: For program point L271-2(lines 207 546) no Hoare annotation was computed. [2020-10-13 15:41:02,707 INFO L268 CegarLoopResult]: For program point L305(lines 305 307) no Hoare annotation was computed. [2020-10-13 15:41:02,707 INFO L268 CegarLoopResult]: For program point L239(lines 239 250) no Hoare annotation was computed. [2020-10-13 15:41:02,707 INFO L271 CegarLoopResult]: At program point L206(lines 205 549) the Hoare annotation is: true [2020-10-13 15:41:02,707 INFO L268 CegarLoopResult]: For program point L173(lines 173 559) no Hoare annotation was computed. [2020-10-13 15:41:02,707 INFO L268 CegarLoopResult]: For program point L140(lines 140 570) no Hoare annotation was computed. [2020-10-13 15:41:02,707 INFO L268 CegarLoopResult]: For program point L107(lines 107 581) no Hoare annotation was computed. [2020-10-13 15:41:02,707 INFO L271 CegarLoopResult]: At program point L603(lines 97 604) the Hoare annotation is: true [2020-10-13 15:41:02,708 INFO L268 CegarLoopResult]: For program point L537(lines 537 539) no Hoare annotation was computed. [2020-10-13 15:41:02,708 INFO L268 CegarLoopResult]: For program point L505(lines 505 508) no Hoare annotation was computed. [2020-10-13 15:41:02,708 INFO L268 CegarLoopResult]: For program point L439(lines 439 441) no Hoare annotation was computed. [2020-10-13 15:41:02,708 INFO L268 CegarLoopResult]: For program point L340(lines 340 344) no Hoare annotation was computed. [2020-10-13 15:41:02,708 INFO L268 CegarLoopResult]: For program point L340-2(lines 340 344) no Hoare annotation was computed. [2020-10-13 15:41:02,708 INFO L268 CegarLoopResult]: For program point L241(lines 241 244) no Hoare annotation was computed. [2020-10-13 15:41:02,709 INFO L271 CegarLoopResult]: At program point ssl3_acceptENTRY(lines 11 615) the Hoare annotation is: true [2020-10-13 15:41:02,709 INFO L268 CegarLoopResult]: For program point L374(lines 374 406) no Hoare annotation was computed. [2020-10-13 15:41:02,709 INFO L268 CegarLoopResult]: For program point L176(lines 176 558) no Hoare annotation was computed. [2020-10-13 15:41:02,709 INFO L268 CegarLoopResult]: For program point L143(lines 143 569) no Hoare annotation was computed. [2020-10-13 15:41:02,709 INFO L268 CegarLoopResult]: For program point L110(lines 110 580) no Hoare annotation was computed. [2020-10-13 15:41:02,709 INFO L268 CegarLoopResult]: For program point L474(lines 474 476) no Hoare annotation was computed. [2020-10-13 15:41:02,710 INFO L268 CegarLoopResult]: For program point L474-2(lines 207 546) no Hoare annotation was computed. [2020-10-13 15:41:02,710 INFO L268 CegarLoopResult]: For program point L375(lines 375 381) no Hoare annotation was computed. [2020-10-13 15:41:02,710 INFO L271 CegarLoopResult]: At program point L210(lines 104 582) the Hoare annotation is: true [2020-10-13 15:41:02,710 INFO L264 CegarLoopResult]: At program point L177(lines 173 559) the Hoare annotation is: (or (not (= 8464 |ssl3_accept_#in~initial_state|)) (<= ssl3_accept_~blastFlag~0 3)) [2020-10-13 15:41:02,711 INFO L264 CegarLoopResult]: At program point L144(lines 140 570) the Hoare annotation is: (or (not (= 8464 |ssl3_accept_#in~initial_state|)) (<= ssl3_accept_~blastFlag~0 3)) [2020-10-13 15:41:02,711 INFO L268 CegarLoopResult]: For program point L442(lines 442 451) no Hoare annotation was computed. [2020-10-13 15:41:02,711 INFO L268 CegarLoopResult]: For program point L608(lines 608 610) no Hoare annotation was computed. [2020-10-13 15:41:02,711 INFO L268 CegarLoopResult]: For program point L608-2(lines 608 610) no Hoare annotation was computed. [2020-10-13 15:41:02,711 INFO L268 CegarLoopResult]: For program point L179(lines 179 557) no Hoare annotation was computed. [2020-10-13 15:41:02,711 INFO L268 CegarLoopResult]: For program point L146(lines 146 568) no Hoare annotation was computed. [2020-10-13 15:41:02,712 INFO L268 CegarLoopResult]: For program point L113(lines 113 579) no Hoare annotation was computed. [2020-10-13 15:41:02,712 INFO L268 CegarLoopResult]: For program point L81(lines 81 87) no Hoare annotation was computed. [2020-10-13 15:41:02,712 INFO L268 CegarLoopResult]: For program point L446(lines 446 448) no Hoare annotation was computed. [2020-10-13 15:41:02,712 INFO L268 CegarLoopResult]: For program point L215(lines 215 217) no Hoare annotation was computed. [2020-10-13 15:41:02,712 INFO L268 CegarLoopResult]: For program point L182(lines 182 556) no Hoare annotation was computed. [2020-10-13 15:41:02,712 INFO L268 CegarLoopResult]: For program point L149(lines 149 567) no Hoare annotation was computed. [2020-10-13 15:41:02,713 INFO L268 CegarLoopResult]: For program point L215-2(lines 215 217) no Hoare annotation was computed. [2020-10-13 15:41:02,713 INFO L268 CegarLoopResult]: For program point L116(lines 116 578) no Hoare annotation was computed. [2020-10-13 15:41:02,713 INFO L268 CegarLoopResult]: For program point L513(lines 513 519) no Hoare annotation was computed. [2020-10-13 15:41:02,713 INFO L268 CegarLoopResult]: For program point L480(lines 480 484) no Hoare annotation was computed. [2020-10-13 15:41:02,713 INFO L268 CegarLoopResult]: For program point L480-2(lines 480 484) no Hoare annotation was computed. [2020-10-13 15:41:02,713 INFO L268 CegarLoopResult]: For program point L348(lines 348 356) no Hoare annotation was computed. [2020-10-13 15:41:02,713 INFO L264 CegarLoopResult]: At program point L183(lines 179 557) the Hoare annotation is: (or (not (= 8464 |ssl3_accept_#in~initial_state|)) (<= ssl3_accept_~blastFlag~0 3)) [2020-10-13 15:41:02,714 INFO L264 CegarLoopResult]: At program point L150(lines 146 568) the Hoare annotation is: (or (not (= 8464 |ssl3_accept_#in~initial_state|)) (<= ssl3_accept_~blastFlag~0 3)) [2020-10-13 15:41:02,714 INFO L268 CegarLoopResult]: For program point L84(lines 84 86) no Hoare annotation was computed. [2020-10-13 15:41:02,714 INFO L268 CegarLoopResult]: For program point L84-2(lines 81 87) no Hoare annotation was computed. [2020-10-13 15:41:02,714 INFO L264 CegarLoopResult]: At program point L547(lines 98 602) the Hoare annotation is: (let ((.cse3 (= ssl3_accept_~blastFlag~0 4)) (.cse6 (<= 8672 ssl3_accept_~s__state~0)) (.cse8 (<= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse9 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (.cse2 (= ssl3_accept_~s__state~0 8656)) (.cse4 (< 8639 ssl3_accept_~s__state~0)) (.cse10 (<= 8640 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse5 (<= ssl3_accept_~s__state~0 8640)) (.cse11 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640)) (.cse7 (= 8448 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~blastFlag~0 3))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse4 .cse5 .cse1) (and .cse1 .cse6) (and .cse1 (= 8496 ssl3_accept_~s__state~0)) (and .cse3 .cse6) (and (= ssl3_accept_~s__state~0 8528) (= ssl3_accept_~__cil_tmp56~0 ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0) .cse1) (and .cse7 .cse1 .cse8 .cse9) (and .cse10 .cse0 .cse11 .cse7) (and .cse1 (= ssl3_accept_~s__state~0 8544)) (and (= ssl3_accept_~s__state~0 8608) .cse1) (and (= 8560 ssl3_accept_~s__state~0) .cse1) (and (<= ssl3_accept_~s__state~0 8576) (< 8575 ssl3_accept_~s__state~0) .cse8 .cse1 .cse9) (and .cse2 .cse1) (and .cse4 .cse10 .cse0 .cse5 .cse11) (<= ssl3_accept_~s__state~0 3) (and (= ssl3_accept_~s__state~0 8512) .cse1) (and (= ssl3_accept_~s__state~0 8592) .cse1) (and (= 3 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse7) (not (= 8464 |ssl3_accept_#in~initial_state|)) (and (= 8466 ssl3_accept_~s__state~0) .cse1))) [2020-10-13 15:41:02,715 INFO L264 CegarLoopResult]: At program point L349(lines 324 367) the Hoare annotation is: (or (not (= 8464 |ssl3_accept_#in~initial_state|)) (<= ssl3_accept_~blastFlag~0 3)) [2020-10-13 15:41:02,715 INFO L268 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-13 15:41:02,715 INFO L264 CegarLoopResult]: At program point L383(lines 374 406) the Hoare annotation is: (or (not (= 8464 |ssl3_accept_#in~initial_state|)) (<= ssl3_accept_~blastFlag~0 3)) [2020-10-13 15:41:02,715 INFO L268 CegarLoopResult]: For program point L284(lines 284 286) no Hoare annotation was computed. [2020-10-13 15:41:02,715 INFO L268 CegarLoopResult]: For program point L284-2(lines 207 546) no Hoare annotation was computed. [2020-10-13 15:41:02,715 INFO L268 CegarLoopResult]: For program point L185(lines 185 555) no Hoare annotation was computed. [2020-10-13 15:41:02,716 INFO L268 CegarLoopResult]: For program point L152(lines 152 566) no Hoare annotation was computed. [2020-10-13 15:41:02,716 INFO L268 CegarLoopResult]: For program point L119(lines 119 577) no Hoare annotation was computed. [2020-10-13 15:41:02,716 INFO L268 CegarLoopResult]: For program point L516(lines 516 518) no Hoare annotation was computed. [2020-10-13 15:41:02,716 INFO L268 CegarLoopResult]: For program point L516-1(lines 207 546) no Hoare annotation was computed. [2020-10-13 15:41:02,716 INFO L268 CegarLoopResult]: For program point L351(lines 351 353) no Hoare annotation was computed. [2020-10-13 15:41:02,717 INFO L268 CegarLoopResult]: For program point L318(lines 318 322) no Hoare annotation was computed. [2020-10-13 15:41:02,717 INFO L268 CegarLoopResult]: For program point L318-2(lines 207 546) no Hoare annotation was computed. [2020-10-13 15:41:02,717 INFO L264 CegarLoopResult]: At program point L120(lines 116 578) the Hoare annotation is: (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (not (= 8464 |ssl3_accept_#in~initial_state|))) [2020-10-13 15:41:02,717 INFO L264 CegarLoopResult]: At program point L517(line 517) the Hoare annotation is: (not (= 8464 |ssl3_accept_#in~initial_state|)) [2020-10-13 15:41:02,717 INFO L268 CegarLoopResult]: For program point L220(lines 220 222) no Hoare annotation was computed. [2020-10-13 15:41:02,718 INFO L268 CegarLoopResult]: For program point L584(lines 584 600) no Hoare annotation was computed. [2020-10-13 15:41:02,718 INFO L268 CegarLoopResult]: For program point L386(lines 386 404) no Hoare annotation was computed. [2020-10-13 15:41:02,718 INFO L268 CegarLoopResult]: For program point L188(lines 188 554) no Hoare annotation was computed. [2020-10-13 15:41:02,718 INFO L268 CegarLoopResult]: For program point L155(lines 155 565) no Hoare annotation was computed. [2020-10-13 15:41:02,718 INFO L268 CegarLoopResult]: For program point L122(lines 122 576) no Hoare annotation was computed. [2020-10-13 15:41:02,718 INFO L268 CegarLoopResult]: For program point L89(lines 89 93) no Hoare annotation was computed. [2020-10-13 15:41:02,719 INFO L268 CegarLoopResult]: For program point L89-1(lines 72 614) no Hoare annotation was computed. [2020-10-13 15:41:02,719 INFO L268 CegarLoopResult]: For program point L585(lines 585 599) no Hoare annotation was computed. [2020-10-13 15:41:02,719 INFO L268 CegarLoopResult]: For program point ssl3_acceptEXIT(lines 11 615) no Hoare annotation was computed. [2020-10-13 15:41:02,719 INFO L268 CegarLoopResult]: For program point L387(lines 387 393) no Hoare annotation was computed. [2020-10-13 15:41:02,719 INFO L264 CegarLoopResult]: At program point L189(lines 185 555) the Hoare annotation is: (or (not (= ssl3_accept_~s__hit~0 0)) (not (= 8464 |ssl3_accept_#in~initial_state|)) (<= ssl3_accept_~blastFlag~0 3)) [2020-10-13 15:41:02,720 INFO L264 CegarLoopResult]: At program point L156(lines 152 566) the Hoare annotation is: (or (not (= 8464 |ssl3_accept_#in~initial_state|)) (<= ssl3_accept_~blastFlag~0 3)) [2020-10-13 15:41:02,720 INFO L271 CegarLoopResult]: At program point L123(lines 122 576) the Hoare annotation is: true [2020-10-13 15:41:02,720 INFO L268 CegarLoopResult]: For program point L90(lines 90 92) no Hoare annotation was computed. [2020-10-13 15:41:02,720 INFO L268 CegarLoopResult]: For program point L586(lines 586 591) no Hoare annotation was computed. [2020-10-13 15:41:02,720 INFO L268 CegarLoopResult]: For program point L586-2(lines 585 599) no Hoare annotation was computed. [2020-10-13 15:41:02,720 INFO L268 CegarLoopResult]: For program point L256(lines 256 258) no Hoare annotation was computed. [2020-10-13 15:41:02,721 INFO L268 CegarLoopResult]: For program point L290(lines 290 294) no Hoare annotation was computed. [2020-10-13 15:41:02,721 INFO L268 CegarLoopResult]: For program point L290-2(lines 290 294) no Hoare annotation was computed. [2020-10-13 15:41:02,721 INFO L268 CegarLoopResult]: For program point L191(lines 191 553) no Hoare annotation was computed. [2020-10-13 15:41:02,721 INFO L268 CegarLoopResult]: For program point L158(lines 158 564) no Hoare annotation was computed. [2020-10-13 15:41:02,721 INFO L268 CegarLoopResult]: For program point L125(lines 125 575) no Hoare annotation was computed. [2020-10-13 15:41:02,722 INFO L268 CegarLoopResult]: For program point L588(lines 588 590) no Hoare annotation was computed. [2020-10-13 15:41:02,722 INFO L268 CegarLoopResult]: For program point ssl3_acceptFINAL(lines 11 615) no Hoare annotation was computed. [2020-10-13 15:41:02,722 INFO L268 CegarLoopResult]: For program point L456(lines 456 458) no Hoare annotation was computed. [2020-10-13 15:41:02,722 INFO L268 CegarLoopResult]: For program point L225(lines 225 232) no Hoare annotation was computed. [2020-10-13 15:41:02,722 INFO L268 CegarLoopResult]: For program point L225-2(lines 225 232) no Hoare annotation was computed. [2020-10-13 15:41:02,722 INFO L268 CegarLoopResult]: For program point L524(lines 524 528) no Hoare annotation was computed. [2020-10-13 15:41:02,723 INFO L268 CegarLoopResult]: For program point L491(lines 491 494) no Hoare annotation was computed. [2020-10-13 15:41:02,723 INFO L268 CegarLoopResult]: For program point L524-2(lines 524 528) no Hoare annotation was computed. [2020-10-13 15:41:02,723 INFO L268 CegarLoopResult]: For program point L425(lines 425 433) no Hoare annotation was computed. [2020-10-13 15:41:02,723 INFO L268 CegarLoopResult]: For program point L425-2(lines 425 433) no Hoare annotation was computed. [2020-10-13 15:41:02,723 INFO L268 CegarLoopResult]: For program point L227(lines 227 230) no Hoare annotation was computed. [2020-10-13 15:41:02,723 INFO L268 CegarLoopResult]: For program point L194(lines 194 552) no Hoare annotation was computed. [2020-10-13 15:41:02,724 INFO L268 CegarLoopResult]: For program point L161(lines 161 563) no Hoare annotation was computed. [2020-10-13 15:41:02,724 INFO L268 CegarLoopResult]: For program point L128(lines 128 574) no Hoare annotation was computed. [2020-10-13 15:41:02,724 INFO L268 CegarLoopResult]: For program point L327(lines 327 366) no Hoare annotation was computed. [2020-10-13 15:41:02,724 INFO L264 CegarLoopResult]: At program point L195(lines 191 553) the Hoare annotation is: (or (not (= 8464 |ssl3_accept_#in~initial_state|)) (<= ssl3_accept_~blastFlag~0 3) (= ssl3_accept_~blastFlag~0 4)) [2020-10-13 15:41:02,724 INFO L264 CegarLoopResult]: At program point L162(lines 158 564) the Hoare annotation is: (or (not (= 8464 |ssl3_accept_#in~initial_state|)) (<= ssl3_accept_~blastFlag~0 3)) [2020-10-13 15:41:02,725 INFO L268 CegarLoopResult]: For program point L593(lines 593 597) no Hoare annotation was computed. [2020-10-13 15:41:02,725 INFO L268 CegarLoopResult]: For program point L428(lines 428 431) no Hoare annotation was computed. [2020-10-13 15:41:02,725 INFO L264 CegarLoopResult]: At program point L395(lines 386 404) the Hoare annotation is: (or (not (= 8464 |ssl3_accept_#in~initial_state|)) (<= ssl3_accept_~blastFlag~0 3)) [2020-10-13 15:41:02,725 INFO L268 CegarLoopResult]: For program point L197(lines 197 551) no Hoare annotation was computed. [2020-10-13 15:41:02,725 INFO L268 CegarLoopResult]: For program point L164(lines 164 562) no Hoare annotation was computed. [2020-10-13 15:41:02,725 INFO L268 CegarLoopResult]: For program point L131(lines 131 573) no Hoare annotation was computed. [2020-10-13 15:41:02,726 INFO L264 CegarLoopResult]: At program point L98-2(lines 98 602) the Hoare annotation is: (let ((.cse3 (= ssl3_accept_~blastFlag~0 4)) (.cse6 (<= 8672 ssl3_accept_~s__state~0)) (.cse8 (<= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse9 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (.cse2 (= ssl3_accept_~s__state~0 8656)) (.cse4 (< 8639 ssl3_accept_~s__state~0)) (.cse10 (<= 8640 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse5 (<= ssl3_accept_~s__state~0 8640)) (.cse11 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640)) (.cse7 (= 8448 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~blastFlag~0 3))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse4 .cse5 .cse1) (and .cse1 .cse6) (and .cse1 (= 8496 ssl3_accept_~s__state~0)) (and .cse3 .cse6) (and (= ssl3_accept_~s__state~0 8528) (= ssl3_accept_~__cil_tmp56~0 ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0) .cse1) (and .cse7 .cse1 .cse8 .cse9) (and .cse10 .cse0 .cse11 .cse7) (and .cse1 (= ssl3_accept_~s__state~0 8544)) (and (= ssl3_accept_~s__state~0 8608) .cse1) (and (= 8560 ssl3_accept_~s__state~0) .cse1) (and (= 8464 ssl3_accept_~s__state~0) .cse1) (and (<= ssl3_accept_~s__state~0 8576) (< 8575 ssl3_accept_~s__state~0) .cse8 .cse1 .cse9) (and .cse2 .cse1) (and .cse4 .cse10 .cse0 .cse5 .cse11) (<= ssl3_accept_~s__state~0 3) (and (= ssl3_accept_~s__state~0 8512) .cse1) (and (= ssl3_accept_~s__state~0 8592) .cse1) (and (= 3 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse7) (not (= 8464 |ssl3_accept_#in~initial_state|)) (and (= 8466 ssl3_accept_~s__state~0) .cse1))) [2020-10-13 15:41:02,726 INFO L268 CegarLoopResult]: For program point L330(lines 330 365) no Hoare annotation was computed. [2020-10-13 15:41:02,727 INFO L268 CegarLoopResult]: For program point L330-1(lines 330 365) no Hoare annotation was computed. [2020-10-13 15:41:02,727 INFO L264 CegarLoopResult]: At program point L165(lines 164 562) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (= 8448 ssl3_accept_~s__state~0)) (.cse2 (<= ssl3_accept_~blastFlag~0 3))) (or (and (<= 8640 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse0 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640) .cse1) (and .cse0 .cse1 .cse2) (and (= 3 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse1) (not (= 8464 |ssl3_accept_#in~initial_state|)) (and .cse1 .cse2 (<= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0) (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)))) [2020-10-13 15:41:02,727 INFO L264 CegarLoopResult]: At program point L132(lines 125 575) the Hoare annotation is: (or (not (= 8464 |ssl3_accept_#in~initial_state|)) (<= ssl3_accept_~blastFlag~0 3)) [2020-10-13 15:41:02,727 INFO L268 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-13 15:41:02,727 INFO L268 CegarLoopResult]: For program point L496(lines 496 498) no Hoare annotation was computed. [2020-10-13 15:41:02,728 INFO L268 CegarLoopResult]: For program point L496-2(lines 207 546) no Hoare annotation was computed. [2020-10-13 15:41:02,728 INFO L268 CegarLoopResult]: For program point L331(lines 331 362) no Hoare annotation was computed. [2020-10-13 15:41:02,728 INFO L268 CegarLoopResult]: For program point L398(lines 398 400) no Hoare annotation was computed. [2020-10-13 15:41:02,728 INFO L268 CegarLoopResult]: For program point L200(lines 200 550) no Hoare annotation was computed. [2020-10-13 15:41:02,728 INFO L268 CegarLoopResult]: For program point L167(lines 167 561) no Hoare annotation was computed. [2020-10-13 15:41:02,728 INFO L268 CegarLoopResult]: For program point L134(lines 134 572) no Hoare annotation was computed. [2020-10-13 15:41:02,729 INFO L268 CegarLoopResult]: For program point L101(lines 101 583) no Hoare annotation was computed. [2020-10-13 15:41:02,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 03:41:02 BoogieIcfgContainer [2020-10-13 15:41:02,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 15:41:02,763 INFO L168 Benchmark]: Toolchain (without parser) took 33277.17 ms. Allocated memory was 147.8 MB in the beginning and 804.8 MB in the end (delta: 656.9 MB). Free memory was 104.0 MB in the beginning and 756.1 MB in the end (delta: -652.1 MB). Peak memory consumption was 674.1 MB. Max. memory is 7.1 GB. [2020-10-13 15:41:02,763 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-10-13 15:41:02,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 532.21 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 103.6 MB in the beginning and 180.1 MB in the end (delta: -76.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-13 15:41:02,765 INFO L168 Benchmark]: Boogie Preprocessor took 63.47 ms. Allocated memory is still 205.0 MB. Free memory was 180.1 MB in the beginning and 177.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-13 15:41:02,765 INFO L168 Benchmark]: RCFGBuilder took 810.91 ms. Allocated memory is still 205.0 MB. Free memory was 177.4 MB in the beginning and 125.9 MB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 7.1 GB. [2020-10-13 15:41:02,766 INFO L168 Benchmark]: TraceAbstraction took 31865.26 ms. Allocated memory was 205.0 MB in the beginning and 804.8 MB in the end (delta: 599.8 MB). Free memory was 125.9 MB in the beginning and 756.1 MB in the end (delta: -630.2 MB). Peak memory consumption was 638.9 MB. Max. memory is 7.1 GB. [2020-10-13 15:41:02,769 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 532.21 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 103.6 MB in the beginning and 180.1 MB in the end (delta: -76.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.47 ms. Allocated memory is still 205.0 MB. Free memory was 180.1 MB in the beginning and 177.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 810.91 ms. Allocated memory is still 205.0 MB. Free memory was 177.4 MB in the beginning and 125.9 MB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31865.26 ms. Allocated memory was 205.0 MB in the beginning and 804.8 MB in the end (delta: 599.8 MB). Free memory was 125.9 MB in the beginning and 756.1 MB in the end (delta: -630.2 MB). Peak memory consumption was 638.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 618]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: !(8464 == \old(initial_state)) || blastFlag <= 3 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: (!(s__hit == 0) && blastFlag <= 3) || !(8464 == \old(initial_state)) - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (!(8464 == \old(initial_state)) || blastFlag <= 3) || blastFlag == 4 - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: !(8464 == \old(initial_state)) || blastFlag <= 3 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: !(8464 == \old(initial_state)) || 8672 <= s__state - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: !(8464 == \old(initial_state)) || blastFlag <= 3 - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: !(8464 == \old(initial_state)) || blastFlag <= 3 - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: ((blastFlag <= 3 && 8672 <= s__state) || (blastFlag == 4 && 8672 <= s__state)) || !(8464 == \old(initial_state)) - InvariantResult [Line: 386]: Loop Invariant Derived loop invariant: !(8464 == \old(initial_state)) || blastFlag <= 3 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: !(8464 == \old(initial_state)) || blastFlag <= 3 - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: !(8464 == \old(initial_state)) || blastFlag <= 3 - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: ((((((((((((((((((((!(s__hit == 0) && blastFlag <= 3) || (s__state == 8656 && blastFlag == 4)) || ((8639 < s__state && s__state <= 8640) && blastFlag <= 3)) || (blastFlag <= 3 && 8672 <= s__state)) || (blastFlag <= 3 && 8496 == s__state)) || (blastFlag == 4 && 8672 <= s__state)) || ((s__state == 8528 && __cil_tmp56 == s__s3__tmp__new_cipher__algorithms) && blastFlag <= 3)) || (((8448 == s__state && blastFlag <= 3) && 8576 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8576)) || (((8640 <= s__s3__tmp__next_state___0 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 8640) && 8448 == s__state)) || (blastFlag <= 3 && s__state == 8544)) || (s__state == 8608 && blastFlag <= 3)) || (8560 == s__state && blastFlag <= 3)) || ((((s__state <= 8576 && 8575 < s__state) && 8576 <= s__s3__tmp__next_state___0) && blastFlag <= 3) && s__s3__tmp__next_state___0 <= 8576)) || (s__state == 8656 && blastFlag <= 3)) || ((((8639 < s__state && 8640 <= s__s3__tmp__next_state___0) && !(s__hit == 0)) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640)) || s__state <= 3) || (s__state == 8512 && blastFlag <= 3)) || (s__state == 8592 && blastFlag <= 3)) || (3 == s__s3__tmp__next_state___0 && 8448 == s__state)) || !(8464 == \old(initial_state))) || (8466 == s__state && blastFlag <= 3) - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: !(8464 == \old(initial_state)) || blastFlag <= 3 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: ((((((8640 <= s__s3__tmp__next_state___0 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 8640) && 8448 == s__state) || ((!(s__hit == 0) && 8448 == s__state) && blastFlag <= 3)) || (3 == s__s3__tmp__next_state___0 && 8448 == s__state)) || !(8464 == \old(initial_state))) || (((8448 == s__state && blastFlag <= 3) && 8576 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8576) - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: !(8464 == \old(initial_state)) || blastFlag <= 3 - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: (!(s__hit == 0) || !(8464 == \old(initial_state))) || blastFlag <= 3 - InvariantResult [Line: 374]: Loop Invariant Derived loop invariant: !(8464 == \old(initial_state)) || blastFlag <= 3 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: !(8464 == \old(initial_state)) || blastFlag <= 3 - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: (((((((((((((((((((((!(s__hit == 0) && blastFlag <= 3) || (s__state == 8656 && blastFlag == 4)) || ((8639 < s__state && s__state <= 8640) && blastFlag <= 3)) || (blastFlag <= 3 && 8672 <= s__state)) || (blastFlag <= 3 && 8496 == s__state)) || (blastFlag == 4 && 8672 <= s__state)) || ((s__state == 8528 && __cil_tmp56 == s__s3__tmp__new_cipher__algorithms) && blastFlag <= 3)) || (((8448 == s__state && blastFlag <= 3) && 8576 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8576)) || (((8640 <= s__s3__tmp__next_state___0 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 8640) && 8448 == s__state)) || (blastFlag <= 3 && s__state == 8544)) || (s__state == 8608 && blastFlag <= 3)) || (8560 == s__state && blastFlag <= 3)) || (8464 == s__state && blastFlag <= 3)) || ((((s__state <= 8576 && 8575 < s__state) && 8576 <= s__s3__tmp__next_state___0) && blastFlag <= 3) && s__s3__tmp__next_state___0 <= 8576)) || (s__state == 8656 && blastFlag <= 3)) || ((((8639 < s__state && 8640 <= s__s3__tmp__next_state___0) && !(s__hit == 0)) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640)) || s__state <= 3) || (s__state == 8512 && blastFlag <= 3)) || (s__state == 8592 && blastFlag <= 3)) || (3 == s__s3__tmp__next_state___0 && 8448 == s__state)) || !(8464 == \old(initial_state))) || (8466 == s__state && blastFlag <= 3) - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: !(8464 == \old(initial_state)) || blastFlag <= 3 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 154 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.0s, OverallIterations: 21, TraceHistogramMax: 14, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4693 SDtfs, 2000 SDslu, 4349 SDs, 0 SdLazy, 2094 SolverSat, 349 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3856occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 21 MinimizatonAttempts, 4565 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 33 LocationsWithAnnotation, 53 PreInvPairs, 282 NumberOfFragments, 594 HoareAnnotationTreeSize, 53 FomulaSimplifications, 22159 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 33 FomulaSimplificationsInter, 3685 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 19.6s InterpolantComputationTime, 4672 NumberOfCodeBlocks, 4672 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 4651 ConstructedInterpolants, 0 QuantifiedInterpolants, 2000370 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 18 PerfectInterpolantSequences, 12174/12252 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...