/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=SHALLOWEST --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 language data_model -i ../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:37:29,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:37:29,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:37:29,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:37:29,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:37:29,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:37:29,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:37:29,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:37:29,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:37:29,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:37:29,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:37:29,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:37:29,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:37:29,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:37:29,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:37:29,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:37:29,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:37:29,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:37:29,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:37:30,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:37:30,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:37:30,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:37:30,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:37:30,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:37:30,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:37:30,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:37:30,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:37:30,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:37:30,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:37:30,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:37:30,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:37:30,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:37:30,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:37:30,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:37:30,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:37:30,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:37:30,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:37:30,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:37:30,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:37:30,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:37:30,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:37:30,046 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 [2020-10-27 01:37:30,076 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:37:30,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:37:30,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:37:30,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:37:30,079 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:37:30,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:37:30,079 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:37:30,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:37:30,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:37:30,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:37:30,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:37:30,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:37:30,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:37:30,080 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:37:30,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:37:30,081 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:37:30,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:37:30,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:37:30,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:37:30,082 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:37:30,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:37:30,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:37:30,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:37:30,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:37:30,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:37:30,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:37:30,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:37:30,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:37:30,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:37:30,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:37:30,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:37:30,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:37:30,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:37:30,562 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:37:30,563 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:37:30,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2020-10-27 01:37:30,656 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d8c6568c/64bdd0aa0eee4f7a80c8a938e6ab4146/FLAG3d3e2434f [2020-10-27 01:37:31,560 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:37:31,561 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2020-10-27 01:37:31,589 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d8c6568c/64bdd0aa0eee4f7a80c8a938e6ab4146/FLAG3d3e2434f [2020-10-27 01:37:31,760 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d8c6568c/64bdd0aa0eee4f7a80c8a938e6ab4146 [2020-10-27 01:37:31,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:37:31,770 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:37:31,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:37:31,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:37:31,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:37:31,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:37:31" (1/1) ... [2020-10-27 01:37:31,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440a350e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:37:31, skipping insertion in model container [2020-10-27 01:37:31,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:37:31" (1/1) ... [2020-10-27 01:37:31,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:37:31,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:37:32,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:37:32,520 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:37:32,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:37:32,838 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:37:32,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:37:32 WrapperNode [2020-10-27 01:37:32,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:37:32,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:37:32,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:37:32,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:37:32,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:37:32" (1/1) ... [2020-10-27 01:37:32,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:37:32" (1/1) ... [2020-10-27 01:37:32,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:37:32" (1/1) ... [2020-10-27 01:37:32,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:37:32" (1/1) ... [2020-10-27 01:37:32,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:37:32" (1/1) ... [2020-10-27 01:37:32,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:37:32" (1/1) ... [2020-10-27 01:37:32,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:37:32" (1/1) ... [2020-10-27 01:37:32,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:37:32,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:37:32,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:37:32,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:37:32,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:37:32" (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 [2020-10-27 01:37:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:37:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:37:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:37:33,113 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 01:37:33,113 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:37:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:37:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:37:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:37:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:37:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 01:37:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 01:37:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 01:37:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:37:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:37:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:37:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:37:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:37:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:37:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:37:35,232 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:37:35,232 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 01:37:35,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:37:35 BoogieIcfgContainer [2020-10-27 01:37:35,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:37:35,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:37:35,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:37:35,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:37:35,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:37:31" (1/3) ... [2020-10-27 01:37:35,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc34aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:37:35, skipping insertion in model container [2020-10-27 01:37:35,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:37:32" (2/3) ... [2020-10-27 01:37:35,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc34aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:37:35, skipping insertion in model container [2020-10-27 01:37:35,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:37:35" (3/3) ... [2020-10-27 01:37:35,252 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+nlh-reducer.c [2020-10-27 01:37:35,267 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:37:35,273 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:37:35,287 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:37:35,357 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:37:35,357 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:37:35,358 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:37:35,358 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:37:35,358 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:37:35,358 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:37:35,358 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:37:35,359 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:37:35,399 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states. [2020-10-27 01:37:35,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-27 01:37:35,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:37:35,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:37:35,410 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:37:35,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:37:35,419 INFO L82 PathProgramCache]: Analyzing trace with hash -576203994, now seen corresponding path program 1 times [2020-10-27 01:37:35,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:37:35,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [847872075] [2020-10-27 01:37:35,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:37:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:35,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:35,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:35,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 01:37:35,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:35,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-27 01:37:35,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:35,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:37:35,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:37:35,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 01:37:35,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:37:35,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:37:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:36,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:36,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:36,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:37:36,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:36,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 01:37:36,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:36,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:37:36,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:37:36,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:37:36,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:36,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:37:36,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [847872075] [2020-10-27 01:37:36,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:37:36,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 01:37:36,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890713748] [2020-10-27 01:37:36,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 01:37:36,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:37:36,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 01:37:36,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:37:36,086 INFO L87 Difference]: Start difference. First operand 313 states. Second operand 5 states. [2020-10-27 01:37:38,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:37:38,377 INFO L93 Difference]: Finished difference Result 332 states and 610 transitions. [2020-10-27 01:37:38,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 01:37:38,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-27 01:37:38,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:37:38,413 INFO L225 Difference]: With dead ends: 332 [2020-10-27 01:37:38,413 INFO L226 Difference]: Without dead ends: 293 [2020-10-27 01:37:38,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:37:38,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-27 01:37:38,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 289. [2020-10-27 01:37:38,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-10-27 01:37:38,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 426 transitions. [2020-10-27 01:37:38,487 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 426 transitions. Word has length 12 [2020-10-27 01:37:38,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:37:38,488 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 426 transitions. [2020-10-27 01:37:38,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 01:37:38,488 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 426 transitions. [2020-10-27 01:37:38,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-27 01:37:38,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:37:38,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:37:38,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:37:38,490 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:37:38,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:37:38,490 INFO L82 PathProgramCache]: Analyzing trace with hash -683488697, now seen corresponding path program 1 times [2020-10-27 01:37:38,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:37:38,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983988339] [2020-10-27 01:37:38,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:37:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:38,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:38,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:38,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:38,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 01:37:38,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:37:38,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-27 01:37:38,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:38,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:37:38,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:37:38,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:37:38,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:37:38,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:37:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:38,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:38,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:38,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:37:38,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:38,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 01:37:38,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:38,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:37:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:37:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:37:38,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:38,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:37:38,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983988339] [2020-10-27 01:37:38,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:37:38,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 01:37:38,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133113635] [2020-10-27 01:37:38,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 01:37:38,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:37:38,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 01:37:38,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:37:38,958 INFO L87 Difference]: Start difference. First operand 289 states and 426 transitions. Second operand 5 states. [2020-10-27 01:37:40,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:37:40,552 INFO L93 Difference]: Finished difference Result 299 states and 437 transitions. [2020-10-27 01:37:40,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 01:37:40,552 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-27 01:37:40,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:37:40,556 INFO L225 Difference]: With dead ends: 299 [2020-10-27 01:37:40,557 INFO L226 Difference]: Without dead ends: 290 [2020-10-27 01:37:40,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:37:40,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-10-27 01:37:40,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 285. [2020-10-27 01:37:40,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2020-10-27 01:37:40,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 361 transitions. [2020-10-27 01:37:40,604 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 361 transitions. Word has length 13 [2020-10-27 01:37:40,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:37:40,605 INFO L481 AbstractCegarLoop]: Abstraction has 285 states and 361 transitions. [2020-10-27 01:37:40,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 01:37:40,609 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 361 transitions. [2020-10-27 01:37:40,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-27 01:37:40,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:37:40,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:37:40,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:37:40,610 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:37:40,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:37:40,611 INFO L82 PathProgramCache]: Analyzing trace with hash -179739162, now seen corresponding path program 1 times [2020-10-27 01:37:40,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:37:40,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [131979602] [2020-10-27 01:37:40,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:37:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:40,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:40,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:40,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 01:37:40,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:40,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-27 01:37:40,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:37:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:37:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:37:40,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:40,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:37:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:40,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:40,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:40,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:37:40,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:40,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 01:37:40,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:40,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:37:40,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:37:40,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:37:40,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:37:40,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:37:40,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [131979602] [2020-10-27 01:37:40,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:37:40,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 01:37:40,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422828608] [2020-10-27 01:37:40,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 01:37:40,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:37:40,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 01:37:40,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:37:40,891 INFO L87 Difference]: Start difference. First operand 285 states and 361 transitions. Second operand 5 states. [2020-10-27 01:37:42,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:37:42,140 INFO L93 Difference]: Finished difference Result 287 states and 362 transitions. [2020-10-27 01:37:42,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 01:37:42,140 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-27 01:37:42,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:37:42,144 INFO L225 Difference]: With dead ends: 287 [2020-10-27 01:37:42,145 INFO L226 Difference]: Without dead ends: 284 [2020-10-27 01:37:42,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:37:42,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-10-27 01:37:42,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2020-10-27 01:37:42,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-10-27 01:37:42,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 359 transitions. [2020-10-27 01:37:42,162 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 359 transitions. Word has length 13 [2020-10-27 01:37:42,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:37:42,162 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 359 transitions. [2020-10-27 01:37:42,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 01:37:42,163 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 359 transitions. [2020-10-27 01:37:42,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-27 01:37:42,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:37:42,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:37:42,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 01:37:42,164 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:37:42,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:37:42,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1277965293, now seen corresponding path program 1 times [2020-10-27 01:37:42,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:37:42,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883204454] [2020-10-27 01:37:42,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:37:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:42,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:42,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:42,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 01:37:42,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:42,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 01:37:42,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:37:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:37:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:37:42,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:42,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:37:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:42,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:42,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:42,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:37:42,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:42,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:37:42,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:42,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:37:42,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:37:42,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:37:42,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:42,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:37:42,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883204454] [2020-10-27 01:37:42,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:37:42,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 01:37:42,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932002224] [2020-10-27 01:37:42,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 01:37:42,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:37:42,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 01:37:42,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:37:42,328 INFO L87 Difference]: Start difference. First operand 284 states and 359 transitions. Second operand 5 states. [2020-10-27 01:37:43,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:37:43,535 INFO L93 Difference]: Finished difference Result 316 states and 403 transitions. [2020-10-27 01:37:43,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 01:37:43,536 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-27 01:37:43,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:37:43,539 INFO L225 Difference]: With dead ends: 316 [2020-10-27 01:37:43,539 INFO L226 Difference]: Without dead ends: 313 [2020-10-27 01:37:43,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:37:43,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-10-27 01:37:43,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 287. [2020-10-27 01:37:43,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-10-27 01:37:43,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 362 transitions. [2020-10-27 01:37:43,567 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 362 transitions. Word has length 14 [2020-10-27 01:37:43,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:37:43,568 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 362 transitions. [2020-10-27 01:37:43,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 01:37:43,568 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 362 transitions. [2020-10-27 01:37:43,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-27 01:37:43,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:37:43,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:37:43,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 01:37:43,570 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:37:43,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:37:43,570 INFO L82 PathProgramCache]: Analyzing trace with hash 203473271, now seen corresponding path program 1 times [2020-10-27 01:37:43,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:37:43,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311179861] [2020-10-27 01:37:43,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:37:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:43,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:43,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:43,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:43,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 01:37:43,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:37:43,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-27 01:37:43,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:43,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:37:43,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:37:43,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 01:37:43,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:43,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:37:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:43,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:43,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:43,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:37:43,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:43,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:37:43,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:37:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:37:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:37:43,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:43,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:37:43,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1311179861] [2020-10-27 01:37:43,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:37:43,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 01:37:43,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725212744] [2020-10-27 01:37:43,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 01:37:43,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:37:43,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 01:37:43,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:37:43,962 INFO L87 Difference]: Start difference. First operand 287 states and 362 transitions. Second operand 5 states. [2020-10-27 01:37:45,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:37:45,065 INFO L93 Difference]: Finished difference Result 289 states and 363 transitions. [2020-10-27 01:37:45,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 01:37:45,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-27 01:37:45,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:37:45,068 INFO L225 Difference]: With dead ends: 289 [2020-10-27 01:37:45,068 INFO L226 Difference]: Without dead ends: 286 [2020-10-27 01:37:45,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:37:45,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-27 01:37:45,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-10-27 01:37:45,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-10-27 01:37:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 360 transitions. [2020-10-27 01:37:45,094 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 360 transitions. Word has length 16 [2020-10-27 01:37:45,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:37:45,094 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 360 transitions. [2020-10-27 01:37:45,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 01:37:45,095 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 360 transitions. [2020-10-27 01:37:45,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-27 01:37:45,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:37:45,096 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:37:45,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 01:37:45,097 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:37:45,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:37:45,098 INFO L82 PathProgramCache]: Analyzing trace with hash 2011697194, now seen corresponding path program 1 times [2020-10-27 01:37:45,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:37:45,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33087354] [2020-10-27 01:37:45,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:37:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:45,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:45,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:45,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:45,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:45,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 01:37:45,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 01:37:45,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-10-27 01:37:45,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:45,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:37:45,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:37:45,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 01:37:45,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:45,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:37:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:45,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:45,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:45,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:37:45,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:45,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 01:37:45,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:37:45,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:37:45,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:37:45,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:45,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:37:45,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33087354] [2020-10-27 01:37:45,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:37:45,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 01:37:45,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840162102] [2020-10-27 01:37:45,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:37:45,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:37:45,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:37:45,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:37:45,594 INFO L87 Difference]: Start difference. First operand 286 states and 360 transitions. Second operand 6 states. [2020-10-27 01:37:46,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:37:46,942 INFO L93 Difference]: Finished difference Result 288 states and 361 transitions. [2020-10-27 01:37:46,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 01:37:46,942 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-27 01:37:46,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:37:46,944 INFO L225 Difference]: With dead ends: 288 [2020-10-27 01:37:46,945 INFO L226 Difference]: Without dead ends: 283 [2020-10-27 01:37:46,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-27 01:37:46,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-10-27 01:37:46,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2020-10-27 01:37:46,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-10-27 01:37:46,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 356 transitions. [2020-10-27 01:37:46,957 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 356 transitions. Word has length 17 [2020-10-27 01:37:46,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:37:46,957 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 356 transitions. [2020-10-27 01:37:46,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:37:46,958 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 356 transitions. [2020-10-27 01:37:46,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-27 01:37:46,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:37:46,959 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:37:46,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 01:37:46,959 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:37:46,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:37:46,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1651686570, now seen corresponding path program 1 times [2020-10-27 01:37:46,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:37:46,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573148105] [2020-10-27 01:37:46,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:37:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:46,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:47,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:47,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:47,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 01:37:47,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:37:47,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-27 01:37:47,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:47,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:37:47,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:37:47,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:37:47,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:47,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:37:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:47,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:47,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:47,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:37:47,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:47,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:37:47,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:47,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:37:47,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:37:47,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:37:47,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:47,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:37:47,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573148105] [2020-10-27 01:37:47,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:37:47,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 01:37:47,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872672238] [2020-10-27 01:37:47,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:37:47,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:37:47,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:37:47,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:37:47,210 INFO L87 Difference]: Start difference. First operand 283 states and 356 transitions. Second operand 6 states. [2020-10-27 01:37:48,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:37:48,580 INFO L93 Difference]: Finished difference Result 298 states and 376 transitions. [2020-10-27 01:37:48,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 01:37:48,581 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-27 01:37:48,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:37:48,583 INFO L225 Difference]: With dead ends: 298 [2020-10-27 01:37:48,583 INFO L226 Difference]: Without dead ends: 295 [2020-10-27 01:37:48,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-27 01:37:48,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-27 01:37:48,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 282. [2020-10-27 01:37:48,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-27 01:37:48,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 354 transitions. [2020-10-27 01:37:48,597 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 354 transitions. Word has length 18 [2020-10-27 01:37:48,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:37:48,598 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 354 transitions. [2020-10-27 01:37:48,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:37:48,598 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 354 transitions. [2020-10-27 01:37:48,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-27 01:37:48,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:37:48,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:37:48,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 01:37:48,599 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:37:48,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:37:48,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1603972548, now seen corresponding path program 1 times [2020-10-27 01:37:48,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:37:48,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1400349739] [2020-10-27 01:37:48,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:37:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:48,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:48,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:48,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:48,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 01:37:48,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:37:48,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-27 01:37:48,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:48,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:37:48,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:37:48,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:37:48,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:48,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:37:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:48,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:48,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:48,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:37:48,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:48,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:37:48,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:37:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:37:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:37:48,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:48,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:37:48,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1400349739] [2020-10-27 01:37:48,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:37:48,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 01:37:48,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017297554] [2020-10-27 01:37:48,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:37:48,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:37:48,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:37:48,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:37:48,821 INFO L87 Difference]: Start difference. First operand 282 states and 354 transitions. Second operand 6 states. [2020-10-27 01:37:50,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:37:50,134 INFO L93 Difference]: Finished difference Result 284 states and 355 transitions. [2020-10-27 01:37:50,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 01:37:50,135 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-27 01:37:50,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:37:50,137 INFO L225 Difference]: With dead ends: 284 [2020-10-27 01:37:50,137 INFO L226 Difference]: Without dead ends: 281 [2020-10-27 01:37:50,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-27 01:37:50,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-27 01:37:50,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2020-10-27 01:37:50,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-27 01:37:50,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 352 transitions. [2020-10-27 01:37:50,149 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 352 transitions. Word has length 18 [2020-10-27 01:37:50,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:37:50,150 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 352 transitions. [2020-10-27 01:37:50,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:37:50,150 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 352 transitions. [2020-10-27 01:37:50,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-27 01:37:50,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:37:50,151 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:37:50,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 01:37:50,151 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:37:50,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:37:50,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1344314020, now seen corresponding path program 1 times [2020-10-27 01:37:50,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:37:50,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289762616] [2020-10-27 01:37:50,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:37:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:50,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:50,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:50,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:50,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 01:37:50,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:37:50,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-27 01:37:50,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:50,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:37:50,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:37:50,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:37:50,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:50,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:37:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:50,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:50,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:50,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:37:50,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:50,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:37:50,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:50,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:37:50,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:37:50,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:37:50,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:50,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:37:50,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289762616] [2020-10-27 01:37:50,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:37:50,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 01:37:50,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320063459] [2020-10-27 01:37:50,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:37:50,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:37:50,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:37:50,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:37:50,451 INFO L87 Difference]: Start difference. First operand 281 states and 352 transitions. Second operand 6 states. [2020-10-27 01:37:51,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:37:51,767 INFO L93 Difference]: Finished difference Result 283 states and 353 transitions. [2020-10-27 01:37:51,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 01:37:51,772 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-27 01:37:51,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:37:51,774 INFO L225 Difference]: With dead ends: 283 [2020-10-27 01:37:51,775 INFO L226 Difference]: Without dead ends: 280 [2020-10-27 01:37:51,776 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-27 01:37:51,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-27 01:37:51,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 277. [2020-10-27 01:37:51,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-27 01:37:51,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 347 transitions. [2020-10-27 01:37:51,786 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 347 transitions. Word has length 18 [2020-10-27 01:37:51,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:37:51,787 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 347 transitions. [2020-10-27 01:37:51,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:37:51,787 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 347 transitions. [2020-10-27 01:37:51,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 01:37:51,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:37:51,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:37:51,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 01:37:51,788 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:37:51,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:37:51,789 INFO L82 PathProgramCache]: Analyzing trace with hash 378659902, now seen corresponding path program 1 times [2020-10-27 01:37:51,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:37:51,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280261438] [2020-10-27 01:37:51,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:37:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:51,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:51,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:51,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:51,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 01:37:51,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:37:51,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-27 01:37:51,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:51,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:37:51,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:37:51,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 01:37:51,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:52,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:37:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:52,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:52,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:52,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:37:52,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:52,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:37:52,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:37:52,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:37:52,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:37:52,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:52,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:37:52,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280261438] [2020-10-27 01:37:52,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:37:52,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 01:37:52,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960012280] [2020-10-27 01:37:52,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:37:52,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:37:52,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:37:52,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:37:52,058 INFO L87 Difference]: Start difference. First operand 277 states and 347 transitions. Second operand 6 states. [2020-10-27 01:37:53,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:37:53,398 INFO L93 Difference]: Finished difference Result 298 states and 373 transitions. [2020-10-27 01:37:53,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 01:37:53,398 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-27 01:37:53,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:37:53,400 INFO L225 Difference]: With dead ends: 298 [2020-10-27 01:37:53,401 INFO L226 Difference]: Without dead ends: 295 [2020-10-27 01:37:53,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-27 01:37:53,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-27 01:37:53,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 276. [2020-10-27 01:37:53,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-27 01:37:53,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 345 transitions. [2020-10-27 01:37:53,413 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 345 transitions. Word has length 19 [2020-10-27 01:37:53,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:37:53,413 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 345 transitions. [2020-10-27 01:37:53,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:37:53,413 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 345 transitions. [2020-10-27 01:37:53,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 01:37:53,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:37:53,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:37:53,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 01:37:53,414 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:37:53,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:37:53,415 INFO L82 PathProgramCache]: Analyzing trace with hash 336332471, now seen corresponding path program 1 times [2020-10-27 01:37:53,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:37:53,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773733964] [2020-10-27 01:37:53,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:37:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:53,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:53,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:53,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:53,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 01:37:53,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:37:53,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-27 01:37:53,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:53,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:37:53,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:37:53,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 01:37:53,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:37:53,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:37:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:53,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:53,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:53,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:37:53,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:53,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:37:53,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:37:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:37:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:37:53,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:53,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:37:53,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773733964] [2020-10-27 01:37:53,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:37:53,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 01:37:53,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357138048] [2020-10-27 01:37:53,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:37:53,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:37:53,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:37:53,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:37:53,804 INFO L87 Difference]: Start difference. First operand 276 states and 345 transitions. Second operand 6 states. [2020-10-27 01:37:55,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:37:55,193 INFO L93 Difference]: Finished difference Result 290 states and 362 transitions. [2020-10-27 01:37:55,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 01:37:55,197 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-27 01:37:55,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:37:55,199 INFO L225 Difference]: With dead ends: 290 [2020-10-27 01:37:55,199 INFO L226 Difference]: Without dead ends: 287 [2020-10-27 01:37:55,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-27 01:37:55,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-27 01:37:55,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 275. [2020-10-27 01:37:55,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-10-27 01:37:55,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 343 transitions. [2020-10-27 01:37:55,210 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 343 transitions. Word has length 19 [2020-10-27 01:37:55,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:37:55,211 INFO L481 AbstractCegarLoop]: Abstraction has 275 states and 343 transitions. [2020-10-27 01:37:55,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:37:55,211 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 343 transitions. [2020-10-27 01:37:55,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 01:37:55,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:37:55,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:37:55,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 01:37:55,212 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:37:55,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:37:55,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1815504043, now seen corresponding path program 1 times [2020-10-27 01:37:55,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:37:55,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300630434] [2020-10-27 01:37:55,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:37:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:55,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:55,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:55,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:55,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 01:37:55,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:37:55,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-27 01:37:55,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:37:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:37:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 01:37:55,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:55,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:37:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:55,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:55,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:55,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:37:55,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:55,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:37:55,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:37:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:37:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:37:55,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:55,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:37:55,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300630434] [2020-10-27 01:37:55,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:37:55,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 01:37:55,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637996589] [2020-10-27 01:37:55,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:37:55,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:37:55,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:37:55,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:37:55,582 INFO L87 Difference]: Start difference. First operand 275 states and 343 transitions. Second operand 6 states. [2020-10-27 01:37:56,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:37:56,921 INFO L93 Difference]: Finished difference Result 277 states and 344 transitions. [2020-10-27 01:37:56,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 01:37:56,922 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-27 01:37:56,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:37:56,924 INFO L225 Difference]: With dead ends: 277 [2020-10-27 01:37:56,925 INFO L226 Difference]: Without dead ends: 272 [2020-10-27 01:37:56,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-27 01:37:56,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-10-27 01:37:56,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2020-10-27 01:37:56,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-10-27 01:37:56,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 339 transitions. [2020-10-27 01:37:56,935 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 339 transitions. Word has length 19 [2020-10-27 01:37:56,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:37:56,935 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 339 transitions. [2020-10-27 01:37:56,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:37:56,935 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 339 transitions. [2020-10-27 01:37:56,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 01:37:56,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:37:56,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:37:56,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 01:37:56,939 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:37:56,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:37:56,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1147413986, now seen corresponding path program 1 times [2020-10-27 01:37:56,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:37:56,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409588467] [2020-10-27 01:37:56,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:37:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:56,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:56,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:57,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:57,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 01:37:57,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:37:57,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-27 01:37:57,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:57,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:37:57,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:37:57,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 01:37:57,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:57,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:37:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:57,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:57,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:57,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:37:57,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:57,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:37:57,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:37:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:37:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:37:57,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:57,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:37:57,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409588467] [2020-10-27 01:37:57,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:37:57,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 01:37:57,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86184298] [2020-10-27 01:37:57,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 01:37:57,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:37:57,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 01:37:57,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:37:57,315 INFO L87 Difference]: Start difference. First operand 272 states and 339 transitions. Second operand 7 states. [2020-10-27 01:37:58,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:37:58,908 INFO L93 Difference]: Finished difference Result 303 states and 376 transitions. [2020-10-27 01:37:58,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 01:37:58,908 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-27 01:37:58,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:37:58,911 INFO L225 Difference]: With dead ends: 303 [2020-10-27 01:37:58,911 INFO L226 Difference]: Without dead ends: 300 [2020-10-27 01:37:58,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-27 01:37:58,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-10-27 01:37:58,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 282. [2020-10-27 01:37:58,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-27 01:37:58,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 351 transitions. [2020-10-27 01:37:58,943 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 351 transitions. Word has length 20 [2020-10-27 01:37:58,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:37:58,943 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 351 transitions. [2020-10-27 01:37:58,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 01:37:58,943 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 351 transitions. [2020-10-27 01:37:58,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 01:37:58,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:37:58,945 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] [2020-10-27 01:37:58,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 01:37:58,946 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:37:58,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:37:58,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1061268859, now seen corresponding path program 1 times [2020-10-27 01:37:58,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:37:58,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126023441] [2020-10-27 01:37:58,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:37:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:58,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:58,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:59,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:59,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:59,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:59,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:37:59,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:37:59,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 824 [2020-10-27 01:37:59,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:37:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:37:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 01:37:59,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:59,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:37:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:37:59,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:37:59,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:37:59,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:37:59,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:37:59,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:37:59,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:37:59,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:37:59,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:37:59,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:37:59,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:37:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:37:59,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126023441] [2020-10-27 01:37:59,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:37:59,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 01:37:59,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593985563] [2020-10-27 01:37:59,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 01:37:59,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:37:59,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 01:37:59,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:37:59,888 INFO L87 Difference]: Start difference. First operand 282 states and 351 transitions. Second operand 5 states. [2020-10-27 01:38:00,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:00,889 INFO L93 Difference]: Finished difference Result 284 states and 352 transitions. [2020-10-27 01:38:00,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 01:38:00,889 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-27 01:38:00,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:00,891 INFO L225 Difference]: With dead ends: 284 [2020-10-27 01:38:00,891 INFO L226 Difference]: Without dead ends: 281 [2020-10-27 01:38:00,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:38:00,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-27 01:38:00,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2020-10-27 01:38:00,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-27 01:38:00,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 349 transitions. [2020-10-27 01:38:00,902 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 349 transitions. Word has length 21 [2020-10-27 01:38:00,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:00,903 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 349 transitions. [2020-10-27 01:38:00,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 01:38:00,903 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 349 transitions. [2020-10-27 01:38:00,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-27 01:38:00,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:00,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:00,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 01:38:00,904 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:00,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:00,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1461384455, now seen corresponding path program 1 times [2020-10-27 01:38:00,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:00,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272332704] [2020-10-27 01:38:00,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:00,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:00,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:00,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:01,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:01,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:01,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 01:38:01,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:38:01,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 566 [2020-10-27 01:38:01,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:01,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:38:01,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:38:01,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 01:38:01,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:01,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:01,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:01,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:01,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:01,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:01,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 01:38:01,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:01,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:01,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:01,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:01,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:01,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:38:01,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272332704] [2020-10-27 01:38:01,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:38:01,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 01:38:01,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249626468] [2020-10-27 01:38:01,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 01:38:01,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:01,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 01:38:01,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 01:38:01,783 INFO L87 Difference]: Start difference. First operand 281 states and 349 transitions. Second operand 9 states. [2020-10-27 01:38:01,931 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-27 01:38:02,056 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-10-27 01:38:03,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:03,697 INFO L93 Difference]: Finished difference Result 283 states and 350 transitions. [2020-10-27 01:38:03,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 01:38:03,698 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-27 01:38:03,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:03,700 INFO L225 Difference]: With dead ends: 283 [2020-10-27 01:38:03,700 INFO L226 Difference]: Without dead ends: 278 [2020-10-27 01:38:03,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-27 01:38:03,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-27 01:38:03,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-10-27 01:38:03,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-27 01:38:03,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 345 transitions. [2020-10-27 01:38:03,711 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 345 transitions. Word has length 22 [2020-10-27 01:38:03,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:03,712 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 345 transitions. [2020-10-27 01:38:03,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 01:38:03,712 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 345 transitions. [2020-10-27 01:38:03,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-27 01:38:03,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:03,712 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:03,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 01:38:03,713 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:03,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:03,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1943871049, now seen corresponding path program 1 times [2020-10-27 01:38:03,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:03,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661821142] [2020-10-27 01:38:03,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:03,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:03,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:03,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:03,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:03,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 01:38:03,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 01:38:03,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-27 01:38:03,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:03,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:38:03,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:38:03,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 01:38:03,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:04,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:04,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:04,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:04,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:04,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:04,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:38:04,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:04,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:04,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:04,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:04,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:04,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:38:04,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661821142] [2020-10-27 01:38:04,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:38:04,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 01:38:04,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816220670] [2020-10-27 01:38:04,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 01:38:04,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:04,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 01:38:04,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-27 01:38:04,243 INFO L87 Difference]: Start difference. First operand 278 states and 345 transitions. Second operand 9 states. [2020-10-27 01:38:06,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:06,030 INFO L93 Difference]: Finished difference Result 289 states and 357 transitions. [2020-10-27 01:38:06,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 01:38:06,031 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-27 01:38:06,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:06,033 INFO L225 Difference]: With dead ends: 289 [2020-10-27 01:38:06,033 INFO L226 Difference]: Without dead ends: 254 [2020-10-27 01:38:06,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-27 01:38:06,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-27 01:38:06,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-10-27 01:38:06,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-27 01:38:06,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 255 transitions. [2020-10-27 01:38:06,042 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 255 transitions. Word has length 23 [2020-10-27 01:38:06,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:06,043 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 255 transitions. [2020-10-27 01:38:06,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 01:38:06,043 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 255 transitions. [2020-10-27 01:38:06,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-27 01:38:06,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:06,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:06,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 01:38:06,046 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:06,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:06,047 INFO L82 PathProgramCache]: Analyzing trace with hash 76858281, now seen corresponding path program 1 times [2020-10-27 01:38:06,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:06,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966868549] [2020-10-27 01:38:06,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:06,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:07,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:09,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:10,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:11,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:11,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-27 01:38:11,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:38:11,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5157 [2020-10-27 01:38:11,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:11,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-27 01:38:11,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:38:11,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 241 [2020-10-27 01:38:11,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:14,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:14,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:14,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:14,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:14,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:14,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:38:14,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:14,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:14,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:14,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:14,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:14,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:38:14,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966868549] [2020-10-27 01:38:14,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:38:14,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2020-10-27 01:38:14,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636178636] [2020-10-27 01:38:14,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 64 states [2020-10-27 01:38:14,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:14,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2020-10-27 01:38:14,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1895, Invalid=2137, Unknown=0, NotChecked=0, Total=4032 [2020-10-27 01:38:14,532 INFO L87 Difference]: Start difference. First operand 254 states and 255 transitions. Second operand 64 states. [2020-10-27 01:38:21,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:21,881 INFO L93 Difference]: Finished difference Result 257 states and 257 transitions. [2020-10-27 01:38:21,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-27 01:38:21,882 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 249 [2020-10-27 01:38:21,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:21,885 INFO L225 Difference]: With dead ends: 257 [2020-10-27 01:38:21,885 INFO L226 Difference]: Without dead ends: 254 [2020-10-27 01:38:21,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1889 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=5738, Invalid=9762, Unknown=0, NotChecked=0, Total=15500 [2020-10-27 01:38:21,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-27 01:38:21,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 253. [2020-10-27 01:38:21,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-10-27 01:38:21,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 253 transitions. [2020-10-27 01:38:21,898 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 253 transitions. Word has length 249 [2020-10-27 01:38:21,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:21,899 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 253 transitions. [2020-10-27 01:38:21,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 64 states. [2020-10-27 01:38:21,899 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 253 transitions. [2020-10-27 01:38:21,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-27 01:38:21,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:38:21,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:38:21,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 01:38:21,902 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:38:21,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:38:21,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1912280946, now seen corresponding path program 1 times [2020-10-27 01:38:21,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:38:21,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440473511] [2020-10-27 01:38:21,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:38:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:22,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:29,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:29,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-27 01:38:29,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:29,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7329 [2020-10-27 01:38:29,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 119 [2020-10-27 01:38:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 01:38:29,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 237 [2020-10-27 01:38:29,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:30,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:38:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:38:30,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:38:30,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:38:30,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:38:30,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:38:30,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:38:30,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:38:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:38:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:38:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:38:30,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:38:30,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:38:30,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440473511] [2020-10-27 01:38:30,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:38:30,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 01:38:30,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446466241] [2020-10-27 01:38:30,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 01:38:30,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:38:30,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 01:38:30,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:38:30,988 INFO L87 Difference]: Start difference. First operand 253 states and 253 transitions. Second operand 8 states. [2020-10-27 01:38:32,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:38:32,141 INFO L93 Difference]: Finished difference Result 255 states and 255 transitions. [2020-10-27 01:38:32,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 01:38:32,142 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 250 [2020-10-27 01:38:32,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:38:32,143 INFO L225 Difference]: With dead ends: 255 [2020-10-27 01:38:32,143 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 01:38:32,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 7 SyntacticMatches, 111 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 01:38:32,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 01:38:32,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 01:38:32,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 01:38:32,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 01:38:32,146 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 250 [2020-10-27 01:38:32,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:38:32,146 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 01:38:32,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 01:38:32,147 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 01:38:32,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 01:38:32,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 01:38:32,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 01:38:32,816 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 01:38:32,816 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 01:38:32,816 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 01:38:32,816 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 01:38:32,817 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 01:38:32,817 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~__tmp_3904_0~0 |old(~__tmp_3904_0~0)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= ~__return_2598~0 |old(~__return_2598~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~__tmp_3904_1~0 |old(~__tmp_3904_1~0)|) (= ~__tmp_2609_0~0 |old(~__tmp_2609_0~0)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-10-27 01:38:32,817 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 01:38:32,817 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 01:38:32,817 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 01:38:32,818 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 01:38:32,818 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 01:38:32,818 INFO L274 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2020-10-27 01:38:32,818 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-10-27 01:38:32,818 INFO L274 CegarLoopResult]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2020-10-27 01:38:32,818 INFO L274 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2020-10-27 01:38:32,819 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 16 3008) no Hoare annotation was computed. [2020-10-27 01:38:32,819 INFO L274 CegarLoopResult]: For program point L1555(lines 1555 2805) no Hoare annotation was computed. [2020-10-27 01:38:32,819 INFO L274 CegarLoopResult]: For program point L2546(lines 2546 2653) no Hoare annotation was computed. [2020-10-27 01:38:32,819 INFO L274 CegarLoopResult]: For program point L2480(lines 2480 2663) no Hoare annotation was computed. [2020-10-27 01:38:32,819 INFO L274 CegarLoopResult]: For program point L432(lines 432 2978) no Hoare annotation was computed. [2020-10-27 01:38:32,819 INFO L274 CegarLoopResult]: For program point L697(lines 697 2937) no Hoare annotation was computed. [2020-10-27 01:38:32,819 INFO L274 CegarLoopResult]: For program point L1688(lines 1688 2785) no Hoare annotation was computed. [2020-10-27 01:38:32,820 INFO L274 CegarLoopResult]: For program point L1622(lines 1622 2795) no Hoare annotation was computed. [2020-10-27 01:38:32,820 INFO L274 CegarLoopResult]: For program point L103(lines 103 125) no Hoare annotation was computed. [2020-10-27 01:38:32,820 INFO L274 CegarLoopResult]: For program point L1953(lines 1953 2744) no Hoare annotation was computed. [2020-10-27 01:38:32,820 INFO L274 CegarLoopResult]: For program point L830(lines 830 2917) no Hoare annotation was computed. [2020-10-27 01:38:32,820 INFO L274 CegarLoopResult]: For program point L764(lines 764 2927) no Hoare annotation was computed. [2020-10-27 01:38:32,820 INFO L274 CegarLoopResult]: For program point L2614(lines 2614 2643) no Hoare annotation was computed. [2020-10-27 01:38:32,820 INFO L274 CegarLoopResult]: For program point L2218(lines 2218 2703) no Hoare annotation was computed. [2020-10-27 01:38:32,820 INFO L274 CegarLoopResult]: For program point L1095(lines 1095 2876) no Hoare annotation was computed. [2020-10-27 01:38:32,820 INFO L274 CegarLoopResult]: For program point L1360(lines 1360 2835) no Hoare annotation was computed. [2020-10-27 01:38:32,820 INFO L274 CegarLoopResult]: For program point L2351(lines 2351 2683) no Hoare annotation was computed. [2020-10-27 01:38:32,820 INFO L274 CegarLoopResult]: For program point L2285(lines 2285 2693) no Hoare annotation was computed. [2020-10-27 01:38:32,820 INFO L274 CegarLoopResult]: For program point L171(lines 171 193) no Hoare annotation was computed. [2020-10-27 01:38:32,821 INFO L270 CegarLoopResult]: At program point L105(line 105) the Hoare annotation is: false [2020-10-27 01:38:32,821 INFO L274 CegarLoopResult]: For program point L105-1(line 105) no Hoare annotation was computed. [2020-10-27 01:38:32,821 INFO L270 CegarLoopResult]: At program point L2616(line 2616) the Hoare annotation is: false [2020-10-27 01:38:32,821 INFO L274 CegarLoopResult]: For program point L502(lines 502 2967) no Hoare annotation was computed. [2020-10-27 01:38:32,821 INFO L274 CegarLoopResult]: For program point L2616-1(line 2616) no Hoare annotation was computed. [2020-10-27 01:38:32,821 INFO L274 CegarLoopResult]: For program point L1493(lines 1493 2815) no Hoare annotation was computed. [2020-10-27 01:38:32,821 INFO L274 CegarLoopResult]: For program point L1427(lines 1427 2825) no Hoare annotation was computed. [2020-10-27 01:38:32,821 INFO L274 CegarLoopResult]: For program point L1758(lines 1758 2774) no Hoare annotation was computed. [2020-10-27 01:38:32,821 INFO L274 CegarLoopResult]: For program point L635(lines 635 2947) no Hoare annotation was computed. [2020-10-27 01:38:32,821 INFO L274 CegarLoopResult]: For program point L569(lines 569 2957) no Hoare annotation was computed. [2020-10-27 01:38:32,821 INFO L270 CegarLoopResult]: At program point L173(line 173) the Hoare annotation is: false [2020-10-27 01:38:32,822 INFO L274 CegarLoopResult]: For program point L173-1(line 173) no Hoare annotation was computed. [2020-10-27 01:38:32,822 INFO L274 CegarLoopResult]: For program point L2023(lines 2023 2733) no Hoare annotation was computed. [2020-10-27 01:38:32,822 INFO L274 CegarLoopResult]: For program point L900(lines 900 2906) no Hoare annotation was computed. [2020-10-27 01:38:32,822 INFO L274 CegarLoopResult]: For program point L1165(lines 1165 2865) no Hoare annotation was computed. [2020-10-27 01:38:32,822 INFO L274 CegarLoopResult]: For program point L2156(lines 2156 2713) no Hoare annotation was computed. [2020-10-27 01:38:32,822 INFO L274 CegarLoopResult]: For program point L2090(lines 2090 2723) no Hoare annotation was computed. [2020-10-27 01:38:32,822 INFO L274 CegarLoopResult]: For program point L2421(lines 2421 2672) no Hoare annotation was computed. [2020-10-27 01:38:32,822 INFO L274 CegarLoopResult]: For program point L307(lines 307 2997) no Hoare annotation was computed. [2020-10-27 01:38:32,822 INFO L274 CegarLoopResult]: For program point L1298(lines 1298 2845) no Hoare annotation was computed. [2020-10-27 01:38:32,822 INFO L274 CegarLoopResult]: For program point L1232(lines 1232 2855) no Hoare annotation was computed. [2020-10-27 01:38:32,822 INFO L274 CegarLoopResult]: For program point L1563(lines 1563 2804) no Hoare annotation was computed. [2020-10-27 01:38:32,823 INFO L274 CegarLoopResult]: For program point L440(lines 440 2977) no Hoare annotation was computed. [2020-10-27 01:38:32,823 INFO L274 CegarLoopResult]: For program point L374(lines 374 2987) no Hoare annotation was computed. [2020-10-27 01:38:32,823 INFO L274 CegarLoopResult]: For program point L1828(lines 1828 2763) no Hoare annotation was computed. [2020-10-27 01:38:32,823 INFO L274 CegarLoopResult]: For program point L705(lines 705 2936) no Hoare annotation was computed. [2020-10-27 01:38:32,823 INFO L274 CegarLoopResult]: For program point L45(lines 45 55) no Hoare annotation was computed. [2020-10-27 01:38:32,823 INFO L274 CegarLoopResult]: For program point L970(lines 970 2895) no Hoare annotation was computed. [2020-10-27 01:38:32,823 INFO L274 CegarLoopResult]: For program point L1961(lines 1961 2743) no Hoare annotation was computed. [2020-10-27 01:38:32,823 INFO L274 CegarLoopResult]: For program point L1895(lines 1895 2753) no Hoare annotation was computed. [2020-10-27 01:38:32,823 INFO L274 CegarLoopResult]: For program point L2226(lines 2226 2702) no Hoare annotation was computed. [2020-10-27 01:38:32,823 INFO L274 CegarLoopResult]: For program point L1103(lines 1103 2875) no Hoare annotation was computed. [2020-10-27 01:38:32,823 INFO L274 CegarLoopResult]: For program point L1037(lines 1037 2885) no Hoare annotation was computed. [2020-10-27 01:38:32,823 INFO L274 CegarLoopResult]: For program point L2623(lines 2623 2642) no Hoare annotation was computed. [2020-10-27 01:38:32,824 INFO L274 CegarLoopResult]: For program point L2491(lines 2491 2661) no Hoare annotation was computed. [2020-10-27 01:38:32,824 INFO L274 CegarLoopResult]: For program point L1368(lines 1368 2834) no Hoare annotation was computed. [2020-10-27 01:38:32,824 INFO L270 CegarLoopResult]: At program point L47(line 47) the Hoare annotation is: false [2020-10-27 01:38:32,824 INFO L274 CegarLoopResult]: For program point L47-1(line 47) no Hoare annotation was computed. [2020-10-27 01:38:32,824 INFO L274 CegarLoopResult]: For program point L1633(lines 1633 2793) no Hoare annotation was computed. [2020-10-27 01:38:32,824 INFO L274 CegarLoopResult]: For program point L2558(lines 2558 2651) no Hoare annotation was computed. [2020-10-27 01:38:32,824 INFO L274 CegarLoopResult]: For program point L510(lines 510 2966) no Hoare annotation was computed. [2020-10-27 01:38:32,824 INFO L274 CegarLoopResult]: For program point L246(lines 246 281) no Hoare annotation was computed. [2020-10-27 01:38:32,824 INFO L274 CegarLoopResult]: For program point L775(lines 775 2925) no Hoare annotation was computed. [2020-10-27 01:38:32,824 INFO L274 CegarLoopResult]: For program point L1766(lines 1766 2773) no Hoare annotation was computed. [2020-10-27 01:38:32,824 INFO L274 CegarLoopResult]: For program point L1700(lines 1700 2783) no Hoare annotation was computed. [2020-10-27 01:38:32,825 INFO L270 CegarLoopResult]: At program point L2625(lines 25 3002) the Hoare annotation is: (and (<= main_~main__t~0 main_~main__tagbuf_len~0) (<= 0 main_~main__t~0)) [2020-10-27 01:38:32,825 INFO L274 CegarLoopResult]: For program point L115(lines 115 123) no Hoare annotation was computed. [2020-10-27 01:38:32,825 INFO L274 CegarLoopResult]: For program point L2031(lines 2031 2732) no Hoare annotation was computed. [2020-10-27 01:38:32,825 INFO L274 CegarLoopResult]: For program point L908(lines 908 2905) no Hoare annotation was computed. [2020-10-27 01:38:32,825 INFO L274 CegarLoopResult]: For program point L842(lines 842 2915) no Hoare annotation was computed. [2020-10-27 01:38:32,825 INFO L274 CegarLoopResult]: For program point L2296(lines 2296 2691) no Hoare annotation was computed. [2020-10-27 01:38:32,825 INFO L274 CegarLoopResult]: For program point L1173(lines 1173 2864) no Hoare annotation was computed. [2020-10-27 01:38:32,825 INFO L274 CegarLoopResult]: For program point L1438(lines 1438 2823) no Hoare annotation was computed. [2020-10-27 01:38:32,825 INFO L274 CegarLoopResult]: For program point L2429(lines 2429 2671) no Hoare annotation was computed. [2020-10-27 01:38:32,825 INFO L274 CegarLoopResult]: For program point L315(lines 315 2996) no Hoare annotation was computed. [2020-10-27 01:38:32,825 INFO L274 CegarLoopResult]: For program point L2363(lines 2363 2681) no Hoare annotation was computed. [2020-10-27 01:38:32,825 INFO L274 CegarLoopResult]: For program point L183(lines 183 191) no Hoare annotation was computed. [2020-10-27 01:38:32,825 INFO L270 CegarLoopResult]: At program point L117(line 117) the Hoare annotation is: false [2020-10-27 01:38:32,826 INFO L274 CegarLoopResult]: For program point L117-1(line 117) no Hoare annotation was computed. [2020-10-27 01:38:32,826 INFO L274 CegarLoopResult]: For program point L580(lines 580 2955) no Hoare annotation was computed. [2020-10-27 01:38:32,826 INFO L274 CegarLoopResult]: For program point L1571(lines 1571 2803) no Hoare annotation was computed. [2020-10-27 01:38:32,826 INFO L274 CegarLoopResult]: For program point L1505(lines 1505 2813) no Hoare annotation was computed. [2020-10-27 01:38:32,826 INFO L274 CegarLoopResult]: For program point L1836(lines 1836 2762) no Hoare annotation was computed. [2020-10-27 01:38:32,826 INFO L274 CegarLoopResult]: For program point L713(lines 713 2935) no Hoare annotation was computed. [2020-10-27 01:38:32,826 INFO L274 CegarLoopResult]: For program point L647(lines 647 2945) no Hoare annotation was computed. [2020-10-27 01:38:32,826 INFO L270 CegarLoopResult]: At program point L185(line 185) the Hoare annotation is: false [2020-10-27 01:38:32,826 INFO L274 CegarLoopResult]: For program point L185-1(line 185) no Hoare annotation was computed. [2020-10-27 01:38:32,826 INFO L274 CegarLoopResult]: For program point L2101(lines 2101 2721) no Hoare annotation was computed. [2020-10-27 01:38:32,826 INFO L274 CegarLoopResult]: For program point L978(lines 978 2894) no Hoare annotation was computed. [2020-10-27 01:38:32,826 INFO L274 CegarLoopResult]: For program point L1243(lines 1243 2853) no Hoare annotation was computed. [2020-10-27 01:38:32,827 INFO L274 CegarLoopResult]: For program point L2234(lines 2234 2701) no Hoare annotation was computed. [2020-10-27 01:38:32,827 INFO L274 CegarLoopResult]: For program point L2168(lines 2168 2711) no Hoare annotation was computed. [2020-10-27 01:38:32,827 INFO L274 CegarLoopResult]: For program point L2631(lines 2631 2641) no Hoare annotation was computed. [2020-10-27 01:38:32,827 INFO L274 CegarLoopResult]: For program point L2499(lines 2499 2660) no Hoare annotation was computed. [2020-10-27 01:38:32,827 INFO L274 CegarLoopResult]: For program point L385(lines 385 2985) no Hoare annotation was computed. [2020-10-27 01:38:32,827 INFO L274 CegarLoopResult]: For program point L1376(lines 1376 2833) no Hoare annotation was computed. [2020-10-27 01:38:32,827 INFO L274 CegarLoopResult]: For program point L1310(lines 1310 2843) no Hoare annotation was computed. [2020-10-27 01:38:32,827 INFO L274 CegarLoopResult]: For program point L253(lines 253 275) no Hoare annotation was computed. [2020-10-27 01:38:32,827 INFO L274 CegarLoopResult]: For program point L1641(lines 1641 2792) no Hoare annotation was computed. [2020-10-27 01:38:32,827 INFO L274 CegarLoopResult]: For program point L518(lines 518 2965) no Hoare annotation was computed. [2020-10-27 01:38:32,827 INFO L274 CegarLoopResult]: For program point L452(lines 452 2975) no Hoare annotation was computed. [2020-10-27 01:38:32,828 INFO L274 CegarLoopResult]: For program point L1906(lines 1906 2751) no Hoare annotation was computed. [2020-10-27 01:38:32,828 INFO L274 CegarLoopResult]: For program point L783(lines 783 2924) no Hoare annotation was computed. [2020-10-27 01:38:32,828 INFO L270 CegarLoopResult]: At program point L255(line 255) the Hoare annotation is: false [2020-10-27 01:38:32,828 INFO L274 CegarLoopResult]: For program point L255-1(line 255) no Hoare annotation was computed. [2020-10-27 01:38:32,828 INFO L274 CegarLoopResult]: For program point L1048(lines 1048 2883) no Hoare annotation was computed. [2020-10-27 01:38:32,828 INFO L274 CegarLoopResult]: For program point L2039(lines 2039 2731) no Hoare annotation was computed. [2020-10-27 01:38:32,828 INFO L274 CegarLoopResult]: For program point L1973(lines 1973 2741) no Hoare annotation was computed. [2020-10-27 01:38:32,828 INFO L270 CegarLoopResult]: At program point L2634(lines 64 3001) the Hoare annotation is: (and (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (<= 0 main_~main__t~0)) [2020-10-27 01:38:32,828 INFO L274 CegarLoopResult]: For program point L2304(lines 2304 2690) no Hoare annotation was computed. [2020-10-27 01:38:32,828 INFO L274 CegarLoopResult]: For program point L1181(lines 1181 2863) no Hoare annotation was computed. [2020-10-27 01:38:32,828 INFO L274 CegarLoopResult]: For program point L1115(lines 1115 2873) no Hoare annotation was computed. [2020-10-27 01:38:32,828 INFO L274 CegarLoopResult]: For program point L2569(lines 2569 2649) no Hoare annotation was computed. [2020-10-27 01:38:32,829 INFO L274 CegarLoopResult]: For program point L1446(lines 1446 2822) no Hoare annotation was computed. [2020-10-27 01:38:32,829 INFO L274 CegarLoopResult]: For program point L323(lines 323 2995) no Hoare annotation was computed. [2020-10-27 01:38:32,829 INFO L274 CegarLoopResult]: For program point L1711(lines 1711 2781) no Hoare annotation was computed. [2020-10-27 01:38:32,829 INFO L274 CegarLoopResult]: For program point L588(lines 588 2954) no Hoare annotation was computed. [2020-10-27 01:38:32,829 INFO L274 CegarLoopResult]: For program point L853(lines 853 2913) no Hoare annotation was computed. [2020-10-27 01:38:32,829 INFO L274 CegarLoopResult]: For program point L1844(lines 1844 2761) no Hoare annotation was computed. [2020-10-27 01:38:32,829 INFO L274 CegarLoopResult]: For program point L1778(lines 1778 2771) no Hoare annotation was computed. [2020-10-27 01:38:32,829 INFO L274 CegarLoopResult]: For program point L2109(lines 2109 2720) no Hoare annotation was computed. [2020-10-27 01:38:32,829 INFO L274 CegarLoopResult]: For program point L986(lines 986 2893) no Hoare annotation was computed. [2020-10-27 01:38:32,829 INFO L274 CegarLoopResult]: For program point L920(lines 920 2903) no Hoare annotation was computed. [2020-10-27 01:38:32,829 INFO L274 CegarLoopResult]: For program point L2374(lines 2374 2679) no Hoare annotation was computed. [2020-10-27 01:38:32,829 INFO L274 CegarLoopResult]: For program point L1251(lines 1251 2852) no Hoare annotation was computed. [2020-10-27 01:38:32,830 INFO L274 CegarLoopResult]: For program point L1516(lines 1516 2811) no Hoare annotation was computed. [2020-10-27 01:38:32,830 INFO L274 CegarLoopResult]: For program point L2507(lines 2507 2659) no Hoare annotation was computed. [2020-10-27 01:38:32,830 INFO L274 CegarLoopResult]: For program point L393(lines 393 2984) no Hoare annotation was computed. [2020-10-27 01:38:32,830 INFO L274 CegarLoopResult]: For program point L2441(lines 2441 2669) no Hoare annotation was computed. [2020-10-27 01:38:32,830 INFO L274 CegarLoopResult]: For program point L658(lines 658 2943) no Hoare annotation was computed. [2020-10-27 01:38:32,830 INFO L274 CegarLoopResult]: For program point L1649(lines 1649 2791) no Hoare annotation was computed. [2020-10-27 01:38:32,830 INFO L270 CegarLoopResult]: At program point L2640(lines 2591 2647) the Hoare annotation is: (and (<= 59 main_~main__t~0) (not (= main_~main__tagbuf_len~0 main_~main__t~0)) (< main_~main__t~0 (+ main_~main__tagbuf_len~0 1))) [2020-10-27 01:38:32,830 INFO L274 CegarLoopResult]: For program point L1583(lines 1583 2801) no Hoare annotation was computed. [2020-10-27 01:38:32,830 INFO L274 CegarLoopResult]: For program point L64(lines 64 3001) no Hoare annotation was computed. [2020-10-27 01:38:32,830 INFO L274 CegarLoopResult]: For program point L1914(lines 1914 2750) no Hoare annotation was computed. [2020-10-27 01:38:32,831 INFO L274 CegarLoopResult]: For program point L791(lines 791 2923) no Hoare annotation was computed. [2020-10-27 01:38:32,831 INFO L274 CegarLoopResult]: For program point L725(lines 725 2933) no Hoare annotation was computed. [2020-10-27 01:38:32,831 INFO L274 CegarLoopResult]: For program point L2179(lines 2179 2709) no Hoare annotation was computed. [2020-10-27 01:38:32,831 INFO L274 CegarLoopResult]: For program point L1056(lines 1056 2882) no Hoare annotation was computed. [2020-10-27 01:38:32,831 INFO L274 CegarLoopResult]: For program point L1321(lines 1321 2841) no Hoare annotation was computed. [2020-10-27 01:38:32,831 INFO L274 CegarLoopResult]: For program point L2312(lines 2312 2689) no Hoare annotation was computed. [2020-10-27 01:38:32,831 INFO L274 CegarLoopResult]: For program point L2246(lines 2246 2699) no Hoare annotation was computed. [2020-10-27 01:38:32,831 INFO L274 CegarLoopResult]: For program point L132(lines 132 282) no Hoare annotation was computed. [2020-10-27 01:38:32,831 INFO L274 CegarLoopResult]: For program point L2577(lines 2577 2648) no Hoare annotation was computed. [2020-10-27 01:38:32,831 INFO L274 CegarLoopResult]: For program point L463(lines 463 2973) no Hoare annotation was computed. [2020-10-27 01:38:32,831 INFO L274 CegarLoopResult]: For program point L1454(lines 1454 2821) no Hoare annotation was computed. [2020-10-27 01:38:32,831 INFO L274 CegarLoopResult]: For program point L1388(lines 1388 2831) no Hoare annotation was computed. [2020-10-27 01:38:32,832 INFO L274 CegarLoopResult]: For program point L265(lines 265 273) no Hoare annotation was computed. [2020-10-27 01:38:32,832 INFO L274 CegarLoopResult]: For program point L1719(lines 1719 2780) no Hoare annotation was computed. [2020-10-27 01:38:32,832 INFO L274 CegarLoopResult]: For program point L596(lines 596 2953) no Hoare annotation was computed. [2020-10-27 01:38:32,832 INFO L274 CegarLoopResult]: For program point L530(lines 530 2963) no Hoare annotation was computed. [2020-10-27 01:38:32,832 INFO L274 CegarLoopResult]: For program point L1984(lines 1984 2739) no Hoare annotation was computed. [2020-10-27 01:38:32,832 INFO L274 CegarLoopResult]: For program point L861(lines 861 2912) no Hoare annotation was computed. [2020-10-27 01:38:32,832 INFO L270 CegarLoopResult]: At program point L267(line 267) the Hoare annotation is: false [2020-10-27 01:38:32,832 INFO L274 CegarLoopResult]: For program point L267-1(line 267) no Hoare annotation was computed. [2020-10-27 01:38:32,832 INFO L274 CegarLoopResult]: For program point L1126(lines 1126 2871) no Hoare annotation was computed. [2020-10-27 01:38:32,832 INFO L274 CegarLoopResult]: For program point L2117(lines 2117 2719) no Hoare annotation was computed. [2020-10-27 01:38:32,832 INFO L274 CegarLoopResult]: For program point L2051(lines 2051 2729) no Hoare annotation was computed. [2020-10-27 01:38:32,832 INFO L274 CegarLoopResult]: For program point L2382(lines 2382 2678) no Hoare annotation was computed. [2020-10-27 01:38:32,833 INFO L274 CegarLoopResult]: For program point L1259(lines 1259 2851) no Hoare annotation was computed. [2020-10-27 01:38:32,833 INFO L274 CegarLoopResult]: For program point L1193(lines 1193 2861) no Hoare annotation was computed. [2020-10-27 01:38:32,833 INFO L274 CegarLoopResult]: For program point L136(lines 136 240) no Hoare annotation was computed. [2020-10-27 01:38:32,833 INFO L274 CegarLoopResult]: For program point L1524(lines 1524 2810) no Hoare annotation was computed. [2020-10-27 01:38:32,833 INFO L274 CegarLoopResult]: For program point L401(lines 401 2983) no Hoare annotation was computed. [2020-10-27 01:38:32,833 INFO L274 CegarLoopResult]: For program point L335(lines 335 2993) no Hoare annotation was computed. [2020-10-27 01:38:32,833 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 16 3008) no Hoare annotation was computed. [2020-10-27 01:38:32,833 INFO L274 CegarLoopResult]: For program point L1789(lines 1789 2769) no Hoare annotation was computed. [2020-10-27 01:38:32,833 INFO L274 CegarLoopResult]: For program point L666(lines 666 2942) no Hoare annotation was computed. [2020-10-27 01:38:32,833 INFO L274 CegarLoopResult]: For program point L931(lines 931 2901) no Hoare annotation was computed. [2020-10-27 01:38:32,833 INFO L274 CegarLoopResult]: For program point L1922(lines 1922 2749) no Hoare annotation was computed. [2020-10-27 01:38:32,833 INFO L274 CegarLoopResult]: For program point L1856(lines 1856 2759) no Hoare annotation was computed. [2020-10-27 01:38:32,834 INFO L274 CegarLoopResult]: For program point L205(lines 205 229) no Hoare annotation was computed. [2020-10-27 01:38:32,834 INFO L274 CegarLoopResult]: For program point L2187(lines 2187 2708) no Hoare annotation was computed. [2020-10-27 01:38:32,834 INFO L274 CegarLoopResult]: For program point L1064(lines 1064 2881) no Hoare annotation was computed. [2020-10-27 01:38:32,834 INFO L274 CegarLoopResult]: For program point L998(lines 998 2891) no Hoare annotation was computed. [2020-10-27 01:38:32,834 INFO L274 CegarLoopResult]: For program point L2452(lines 2452 2667) no Hoare annotation was computed. [2020-10-27 01:38:32,834 INFO L274 CegarLoopResult]: For program point L1329(lines 1329 2840) no Hoare annotation was computed. [2020-10-27 01:38:32,834 INFO L274 CegarLoopResult]: For program point L74(lines 74 286) no Hoare annotation was computed. [2020-10-27 01:38:32,834 INFO L274 CegarLoopResult]: For program point L1594(lines 1594 2799) no Hoare annotation was computed. [2020-10-27 01:38:32,834 INFO L274 CegarLoopResult]: For program point L2585(lines 2585 2647) no Hoare annotation was computed. [2020-10-27 01:38:32,834 INFO L274 CegarLoopResult]: For program point L471(lines 471 2972) no Hoare annotation was computed. [2020-10-27 01:38:32,834 INFO L274 CegarLoopResult]: For program point L2519(lines 2519 2657) no Hoare annotation was computed. [2020-10-27 01:38:32,834 INFO L270 CegarLoopResult]: At program point L207(line 207) the Hoare annotation is: false [2020-10-27 01:38:32,834 INFO L274 CegarLoopResult]: For program point L207-1(line 207) no Hoare annotation was computed. [2020-10-27 01:38:32,835 INFO L274 CegarLoopResult]: For program point L736(lines 736 2931) no Hoare annotation was computed. [2020-10-27 01:38:32,835 INFO L274 CegarLoopResult]: For program point L1727(lines 1727 2779) no Hoare annotation was computed. [2020-10-27 01:38:32,835 INFO L274 CegarLoopResult]: For program point L1661(lines 1661 2789) no Hoare annotation was computed. [2020-10-27 01:38:32,835 INFO L270 CegarLoopResult]: At program point L76(line 76) the Hoare annotation is: false [2020-10-27 01:38:32,835 INFO L274 CegarLoopResult]: For program point L76-1(line 76) no Hoare annotation was computed. [2020-10-27 01:38:32,835 INFO L274 CegarLoopResult]: For program point L1992(lines 1992 2738) no Hoare annotation was computed. [2020-10-27 01:38:32,835 INFO L274 CegarLoopResult]: For program point L869(lines 869 2911) no Hoare annotation was computed. [2020-10-27 01:38:32,835 INFO L274 CegarLoopResult]: For program point L803(lines 803 2921) no Hoare annotation was computed. [2020-10-27 01:38:32,835 INFO L274 CegarLoopResult]: For program point L2257(lines 2257 2697) no Hoare annotation was computed. [2020-10-27 01:38:32,835 INFO L274 CegarLoopResult]: For program point L143(lines 143 234) no Hoare annotation was computed. [2020-10-27 01:38:32,835 INFO L274 CegarLoopResult]: For program point L1134(lines 1134 2870) no Hoare annotation was computed. [2020-10-27 01:38:32,835 INFO L274 CegarLoopResult]: For program point L1399(lines 1399 2829) no Hoare annotation was computed. [2020-10-27 01:38:32,836 INFO L274 CegarLoopResult]: For program point L2390(lines 2390 2677) no Hoare annotation was computed. [2020-10-27 01:38:32,836 INFO L274 CegarLoopResult]: For program point L2324(lines 2324 2687) no Hoare annotation was computed. [2020-10-27 01:38:32,836 INFO L274 CegarLoopResult]: For program point L541(lines 541 2961) no Hoare annotation was computed. [2020-10-27 01:38:32,836 INFO L274 CegarLoopResult]: For program point L1532(lines 1532 2809) no Hoare annotation was computed. [2020-10-27 01:38:32,836 INFO L274 CegarLoopResult]: For program point L1466(lines 1466 2819) no Hoare annotation was computed. [2020-10-27 01:38:32,836 INFO L270 CegarLoopResult]: At program point L145(line 145) the Hoare annotation is: false [2020-10-27 01:38:32,836 INFO L274 CegarLoopResult]: For program point L145-1(line 145) no Hoare annotation was computed. [2020-10-27 01:38:32,836 INFO L274 CegarLoopResult]: For program point L1797(lines 1797 2768) no Hoare annotation was computed. [2020-10-27 01:38:32,836 INFO L274 CegarLoopResult]: For program point L674(lines 674 2941) no Hoare annotation was computed. [2020-10-27 01:38:32,836 INFO L274 CegarLoopResult]: For program point L608(lines 608 2951) no Hoare annotation was computed. [2020-10-27 01:38:32,836 INFO L274 CegarLoopResult]: For program point L2062(lines 2062 2727) no Hoare annotation was computed. [2020-10-27 01:38:32,836 INFO L274 CegarLoopResult]: For program point L939(lines 939 2900) no Hoare annotation was computed. [2020-10-27 01:38:32,837 INFO L274 CegarLoopResult]: For program point L1204(lines 1204 2859) no Hoare annotation was computed. [2020-10-27 01:38:32,837 INFO L274 CegarLoopResult]: For program point L2195(lines 2195 2707) no Hoare annotation was computed. [2020-10-27 01:38:32,837 INFO L274 CegarLoopResult]: For program point L2129(lines 2129 2717) no Hoare annotation was computed. [2020-10-27 01:38:32,837 INFO L274 CegarLoopResult]: For program point L2460(lines 2460 2666) no Hoare annotation was computed. [2020-10-27 01:38:32,837 INFO L274 CegarLoopResult]: For program point L346(lines 346 2991) no Hoare annotation was computed. [2020-10-27 01:38:32,837 INFO L274 CegarLoopResult]: For program point L1337(lines 1337 2839) no Hoare annotation was computed. [2020-10-27 01:38:32,837 INFO L270 CegarLoopResult]: At program point L280(lines 132 282) the Hoare annotation is: (and (<= 1 main_~__VERIFIER_assert__cond~3) (not (= main_~__VERIFIER_assert__cond~2 0)) (<= 1 main_~main__t~0) (not (= main_~main__tagbuf_len~0 main_~main__t~0)) (< main_~main__t~0 (+ main_~main__tagbuf_len~0 1))) [2020-10-27 01:38:32,837 INFO L274 CegarLoopResult]: For program point L1271(lines 1271 2849) no Hoare annotation was computed. [2020-10-27 01:38:32,837 INFO L274 CegarLoopResult]: For program point L1602(lines 1602 2798) no Hoare annotation was computed. [2020-10-27 01:38:32,837 INFO L274 CegarLoopResult]: For program point L479(lines 479 2971) no Hoare annotation was computed. [2020-10-27 01:38:32,837 INFO L274 CegarLoopResult]: For program point L413(lines 413 2981) no Hoare annotation was computed. [2020-10-27 01:38:32,838 INFO L274 CegarLoopResult]: For program point L1867(lines 1867 2757) no Hoare annotation was computed. [2020-10-27 01:38:32,838 INFO L274 CegarLoopResult]: For program point L744(lines 744 2930) no Hoare annotation was computed. [2020-10-27 01:38:32,838 INFO L274 CegarLoopResult]: For program point L1009(lines 1009 2889) no Hoare annotation was computed. [2020-10-27 01:38:32,838 INFO L274 CegarLoopResult]: For program point L2000(lines 2000 2737) no Hoare annotation was computed. [2020-10-27 01:38:32,838 INFO L274 CegarLoopResult]: For program point L1934(lines 1934 2747) no Hoare annotation was computed. [2020-10-27 01:38:32,838 INFO L274 CegarLoopResult]: For program point L217(lines 217 227) no Hoare annotation was computed. [2020-10-27 01:38:32,838 INFO L274 CegarLoopResult]: For program point L2265(lines 2265 2696) no Hoare annotation was computed. [2020-10-27 01:38:32,838 INFO L274 CegarLoopResult]: For program point L1142(lines 1142 2869) no Hoare annotation was computed. [2020-10-27 01:38:32,838 INFO L274 CegarLoopResult]: For program point L1076(lines 1076 2879) no Hoare annotation was computed. [2020-10-27 01:38:32,838 INFO L274 CegarLoopResult]: For program point L2530(lines 2530 2655) no Hoare annotation was computed. [2020-10-27 01:38:32,839 INFO L274 CegarLoopResult]: For program point L1407(lines 1407 2828) no Hoare annotation was computed. [2020-10-27 01:38:32,839 INFO L274 CegarLoopResult]: For program point L86(lines 86 284) no Hoare annotation was computed. [2020-10-27 01:38:32,839 INFO L274 CegarLoopResult]: For program point L1672(lines 1672 2787) no Hoare annotation was computed. [2020-10-27 01:38:32,839 INFO L274 CegarLoopResult]: For program point L549(lines 549 2960) no Hoare annotation was computed. [2020-10-27 01:38:32,839 INFO L270 CegarLoopResult]: At program point L219(line 219) the Hoare annotation is: false [2020-10-27 01:38:32,839 INFO L274 CegarLoopResult]: For program point L219-1(line 219) no Hoare annotation was computed. [2020-10-27 01:38:32,839 INFO L274 CegarLoopResult]: For program point L21(lines 21 3007) no Hoare annotation was computed. [2020-10-27 01:38:32,839 INFO L274 CegarLoopResult]: For program point L814(lines 814 2919) no Hoare annotation was computed. [2020-10-27 01:38:32,839 INFO L274 CegarLoopResult]: For program point L1805(lines 1805 2767) no Hoare annotation was computed. [2020-10-27 01:38:32,839 INFO L274 CegarLoopResult]: For program point L1739(lines 1739 2777) no Hoare annotation was computed. [2020-10-27 01:38:32,839 INFO L270 CegarLoopResult]: At program point L88(line 88) the Hoare annotation is: false [2020-10-27 01:38:32,840 INFO L274 CegarLoopResult]: For program point L88-1(line 88) no Hoare annotation was computed. [2020-10-27 01:38:32,840 INFO L274 CegarLoopResult]: For program point L2070(lines 2070 2726) no Hoare annotation was computed. [2020-10-27 01:38:32,840 INFO L274 CegarLoopResult]: For program point L947(lines 947 2899) no Hoare annotation was computed. [2020-10-27 01:38:32,840 INFO L274 CegarLoopResult]: For program point L881(lines 881 2909) no Hoare annotation was computed. [2020-10-27 01:38:32,840 INFO L274 CegarLoopResult]: For program point L2335(lines 2335 2685) no Hoare annotation was computed. [2020-10-27 01:38:32,840 INFO L274 CegarLoopResult]: For program point L1212(lines 1212 2858) no Hoare annotation was computed. [2020-10-27 01:38:32,840 INFO L274 CegarLoopResult]: For program point L155(lines 155 232) no Hoare annotation was computed. [2020-10-27 01:38:32,840 INFO L274 CegarLoopResult]: For program point L1477(lines 1477 2817) no Hoare annotation was computed. [2020-10-27 01:38:32,840 INFO L274 CegarLoopResult]: For program point L2468(lines 2468 2665) no Hoare annotation was computed. [2020-10-27 01:38:32,840 INFO L274 CegarLoopResult]: For program point L2402(lines 2402 2675) no Hoare annotation was computed. [2020-10-27 01:38:32,840 INFO L274 CegarLoopResult]: For program point L354(lines 354 2990) no Hoare annotation was computed. [2020-10-27 01:38:32,841 INFO L274 CegarLoopResult]: For program point L619(lines 619 2949) no Hoare annotation was computed. [2020-10-27 01:38:32,841 INFO L274 CegarLoopResult]: For program point L1610(lines 1610 2797) no Hoare annotation was computed. [2020-10-27 01:38:32,841 INFO L274 CegarLoopResult]: For program point L1544(lines 1544 2807) no Hoare annotation was computed. [2020-10-27 01:38:32,841 INFO L270 CegarLoopResult]: At program point L157(line 157) the Hoare annotation is: false [2020-10-27 01:38:32,841 INFO L274 CegarLoopResult]: For program point L157-1(line 157) no Hoare annotation was computed. [2020-10-27 01:38:32,841 INFO L274 CegarLoopResult]: For program point L25(lines 25 3002) no Hoare annotation was computed. [2020-10-27 01:38:32,841 INFO L274 CegarLoopResult]: For program point L1875(lines 1875 2756) no Hoare annotation was computed. [2020-10-27 01:38:32,841 INFO L274 CegarLoopResult]: For program point L752(lines 752 2929) no Hoare annotation was computed. [2020-10-27 01:38:32,841 INFO L274 CegarLoopResult]: For program point L686(lines 686 2939) no Hoare annotation was computed. [2020-10-27 01:38:32,841 INFO L274 CegarLoopResult]: For program point L2602(lines 2602 2645) no Hoare annotation was computed. [2020-10-27 01:38:32,841 INFO L274 CegarLoopResult]: For program point L2140(lines 2140 2715) no Hoare annotation was computed. [2020-10-27 01:38:32,841 INFO L274 CegarLoopResult]: For program point L1017(lines 1017 2888) no Hoare annotation was computed. [2020-10-27 01:38:32,842 INFO L274 CegarLoopResult]: For program point L1282(lines 1282 2847) no Hoare annotation was computed. [2020-10-27 01:38:32,842 INFO L274 CegarLoopResult]: For program point L2273(lines 2273 2695) no Hoare annotation was computed. [2020-10-27 01:38:32,842 INFO L274 CegarLoopResult]: For program point L2207(lines 2207 2705) no Hoare annotation was computed. [2020-10-27 01:38:32,842 INFO L270 CegarLoopResult]: At program point L2604(line 2604) the Hoare annotation is: false [2020-10-27 01:38:32,842 INFO L274 CegarLoopResult]: For program point L2538(lines 2538 2654) no Hoare annotation was computed. [2020-10-27 01:38:32,842 INFO L274 CegarLoopResult]: For program point L2604-1(line 2604) no Hoare annotation was computed. [2020-10-27 01:38:32,842 INFO L274 CegarLoopResult]: For program point L424(lines 424 2979) no Hoare annotation was computed. [2020-10-27 01:38:32,842 INFO L274 CegarLoopResult]: For program point L1415(lines 1415 2827) no Hoare annotation was computed. [2020-10-27 01:38:32,842 INFO L274 CegarLoopResult]: For program point L1349(lines 1349 2837) no Hoare annotation was computed. [2020-10-27 01:38:32,843 INFO L270 CegarLoopResult]: At program point L226(lines 92 284) the Hoare annotation is: (and (<= 1 main_~__VERIFIER_assert__cond~3) (not (= main_~__VERIFIER_assert__cond~2 0)) (<= 1 main_~main__t~0) (or (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (= main_~main__tagbuf_len~0 main_~main__t~0))) [2020-10-27 01:38:32,843 INFO L274 CegarLoopResult]: For program point L1680(lines 1680 2786) no Hoare annotation was computed. [2020-10-27 01:38:32,843 INFO L274 CegarLoopResult]: For program point L557(lines 557 2959) no Hoare annotation was computed. [2020-10-27 01:38:32,843 INFO L274 CegarLoopResult]: For program point L491(lines 491 2969) no Hoare annotation was computed. [2020-10-27 01:38:32,843 INFO L274 CegarLoopResult]: For program point L1945(lines 1945 2745) no Hoare annotation was computed. [2020-10-27 01:38:32,843 INFO L274 CegarLoopResult]: For program point L822(lines 822 2918) no Hoare annotation was computed. [2020-10-27 01:38:32,843 INFO L274 CegarLoopResult]: For program point L1087(lines 1087 2877) no Hoare annotation was computed. [2020-10-27 01:38:32,843 INFO L274 CegarLoopResult]: For program point L2078(lines 2078 2725) no Hoare annotation was computed. [2020-10-27 01:38:32,844 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 16 3008) the Hoare annotation is: (and (= |old(~__tmp_3904_0~0)| ~__tmp_3904_0~0) (= |old(~__return_2598~0)| ~__return_2598~0) (= |old(~__tmp_3904_1~0)| ~__tmp_3904_1~0) (= |old(~__tmp_2609_0~0)| ~__tmp_2609_0~0)) [2020-10-27 01:38:32,844 INFO L274 CegarLoopResult]: For program point L2012(lines 2012 2735) no Hoare annotation was computed. [2020-10-27 01:38:32,844 INFO L274 CegarLoopResult]: For program point L2343(lines 2343 2684) no Hoare annotation was computed. [2020-10-27 01:38:32,844 INFO L274 CegarLoopResult]: For program point L1220(lines 1220 2857) no Hoare annotation was computed. [2020-10-27 01:38:32,844 INFO L274 CegarLoopResult]: For program point L1154(lines 1154 2867) no Hoare annotation was computed. [2020-10-27 01:38:32,844 INFO L274 CegarLoopResult]: For program point L1485(lines 1485 2816) no Hoare annotation was computed. [2020-10-27 01:38:32,844 INFO L274 CegarLoopResult]: For program point L362(lines 362 2989) no Hoare annotation was computed. [2020-10-27 01:38:32,844 INFO L274 CegarLoopResult]: For program point L296(lines 296 2999) no Hoare annotation was computed. [2020-10-27 01:38:32,844 INFO L274 CegarLoopResult]: For program point L164(lines 164 231) no Hoare annotation was computed. [2020-10-27 01:38:32,845 INFO L274 CegarLoopResult]: For program point L1750(lines 1750 2775) no Hoare annotation was computed. [2020-10-27 01:38:32,845 INFO L274 CegarLoopResult]: For program point L627(lines 627 2948) no Hoare annotation was computed. [2020-10-27 01:38:32,845 INFO L274 CegarLoopResult]: For program point L33(lines 33 57) no Hoare annotation was computed. [2020-10-27 01:38:32,845 INFO L270 CegarLoopResult]: At program point L3006(lines 21 3007) the Hoare annotation is: (or (and (= |old(~__tmp_3904_0~0)| ~__tmp_3904_0~0) (= |old(~__return_2598~0)| ~__return_2598~0) (= |old(~__tmp_3904_1~0)| ~__tmp_3904_1~0) (= |old(~__tmp_2609_0~0)| ~__tmp_2609_0~0)) (<= 0 main_~main__t~0)) [2020-10-27 01:38:32,845 INFO L274 CegarLoopResult]: For program point L892(lines 892 2907) no Hoare annotation was computed. [2020-10-27 01:38:32,845 INFO L274 CegarLoopResult]: For program point L1883(lines 1883 2755) no Hoare annotation was computed. [2020-10-27 01:38:32,845 INFO L274 CegarLoopResult]: For program point L1817(lines 1817 2765) no Hoare annotation was computed. [2020-10-27 01:38:32,845 INFO L274 CegarLoopResult]: For program point L2148(lines 2148 2714) no Hoare annotation was computed. [2020-10-27 01:38:32,845 INFO L274 CegarLoopResult]: For program point L1025(lines 1025 2887) no Hoare annotation was computed. [2020-10-27 01:38:32,845 INFO L274 CegarLoopResult]: For program point L959(lines 959 2897) no Hoare annotation was computed. [2020-10-27 01:38:32,845 INFO L274 CegarLoopResult]: For program point L2413(lines 2413 2673) no Hoare annotation was computed. [2020-10-27 01:38:32,846 INFO L274 CegarLoopResult]: For program point L1290(lines 1290 2846) no Hoare annotation was computed. [2020-10-27 01:38:32,846 INFO L270 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: false [2020-10-27 01:38:32,846 INFO L274 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed. [2020-10-27 01:38:32,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:38:32 BoogieIcfgContainer [2020-10-27 01:38:32,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:38:32,883 INFO L168 Benchmark]: Toolchain (without parser) took 61116.37 ms. Allocated memory was 154.1 MB in the beginning and 780.1 MB in the end (delta: 626.0 MB). Free memory was 128.4 MB in the beginning and 407.0 MB in the end (delta: -278.5 MB). Peak memory consumption was 348.4 MB. Max. memory is 8.0 GB. [2020-10-27 01:38:32,888 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 154.1 MB. Free memory was 125.8 MB in the beginning and 125.7 MB in the end (delta: 102.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:38:32,888 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1067.04 ms. Allocated memory is still 154.1 MB. Free memory was 127.9 MB in the beginning and 128.5 MB in the end (delta: -619.2 kB). Peak memory consumption was 32.3 MB. Max. memory is 8.0 GB. [2020-10-27 01:38:32,890 INFO L168 Benchmark]: Boogie Preprocessor took 150.26 ms. Allocated memory is still 154.1 MB. Free memory was 128.5 MB in the beginning and 123.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-27 01:38:32,891 INFO L168 Benchmark]: RCFGBuilder took 2247.82 ms. Allocated memory was 154.1 MB in the beginning and 196.1 MB in the end (delta: 41.9 MB). Free memory was 123.2 MB in the beginning and 82.7 MB in the end (delta: 40.6 MB). Peak memory consumption was 83.0 MB. Max. memory is 8.0 GB. [2020-10-27 01:38:32,891 INFO L168 Benchmark]: TraceAbstraction took 57637.07 ms. Allocated memory was 196.1 MB in the beginning and 780.1 MB in the end (delta: 584.1 MB). Free memory was 82.1 MB in the beginning and 407.0 MB in the end (delta: -324.8 MB). Peak memory consumption was 259.2 MB. Max. memory is 8.0 GB. [2020-10-27 01:38:32,897 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 154.1 MB. Free memory was 125.8 MB in the beginning and 125.7 MB in the end (delta: 102.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1067.04 ms. Allocated memory is still 154.1 MB. Free memory was 127.9 MB in the beginning and 128.5 MB in the end (delta: -619.2 kB). Peak memory consumption was 32.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 150.26 ms. Allocated memory is still 154.1 MB. Free memory was 128.5 MB in the beginning and 123.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2247.82 ms. Allocated memory was 154.1 MB in the beginning and 196.1 MB in the end (delta: 41.9 MB). Free memory was 123.2 MB in the beginning and 82.7 MB in the end (delta: 40.6 MB). Peak memory consumption was 83.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 57637.07 ms. Allocated memory was 196.1 MB in the beginning and 780.1 MB in the end (delta: 584.1 MB). Free memory was 82.1 MB in the beginning and 407.0 MB in the end (delta: -324.8 MB). Peak memory consumption was 259.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 64]: Loop Invariant Derived loop invariant: main__t + 1 <= main__tagbuf_len && 0 <= main__t - InvariantResult [Line: 2591]: Loop Invariant Derived loop invariant: (59 <= main__t && !(main__tagbuf_len == main__t)) && main__t < main__tagbuf_len + 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((\old(__tmp_3904_0) == __tmp_3904_0 && \old(__return_2598) == __return_2598) && \old(__tmp_3904_1) == __tmp_3904_1) && \old(__tmp_2609_0) == __tmp_2609_0) || 0 <= main__t - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: ((1 <= __VERIFIER_assert__cond && !(__VERIFIER_assert__cond == 0)) && 1 <= main__t) && (main__t + 1 <= main__tagbuf_len || main__tagbuf_len == main__t) - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: (((1 <= __VERIFIER_assert__cond && !(__VERIFIER_assert__cond == 0)) && 1 <= main__t) && !(main__tagbuf_len == main__t)) && main__t < main__tagbuf_len + 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: main__t <= main__tagbuf_len && 0 <= main__t - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 317 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 56.7s, OverallIterations: 18, TraceHistogramMax: 1, AutomataDifference: 31.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2589 SDtfs, 15746 SDslu, 882 SDs, 0 SdLazy, 14057 SolverSat, 4293 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 425 GetRequests, 61 SyntacticMatches, 112 SemanticMatches, 252 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2133 ImplicationChecksByTransitivity, 12.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=313occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 101 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 44 PreInvPairs, 54 NumberOfFragments, 164 HoareAnnotationTreeSize, 44 FomulaSimplifications, 3605 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 27 FomulaSimplificationsInter, 796 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.5s InterpolantComputationTime, 781 NumberOfCodeBlocks, 781 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 763 ConstructedInterpolants, 0 QuantifiedInterpolants, 444261 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...