/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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/eca-rers2012/Problem10_label02.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 11:56:56,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 11:56:56,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 11:56:56,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 11:56:56,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 11:56:56,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 11:56:56,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 11:56:56,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 11:56:56,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 11:56:56,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 11:56:56,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 11:56:56,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 11:56:56,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 11:56:56,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 11:56:56,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 11:56:56,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 11:56:56,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 11:56:56,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 11:56:56,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 11:56:56,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 11:56:57,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 11:56:57,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 11:56:57,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 11:56:57,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 11:56:57,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 11:56:57,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 11:56:57,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 11:56:57,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 11:56:57,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 11:56:57,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 11:56:57,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 11:56:57,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 11:56:57,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 11:56:57,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 11:56:57,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 11:56:57,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 11:56:57,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 11:56:57,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 11:56:57,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 11:56:57,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 11:56:57,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 11:56:57,036 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 [2020-10-28 11:56:57,083 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 11:56:57,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 11:56:57,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 11:56:57,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 11:56:57,087 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 11:56:57,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 11:56:57,088 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 11:56:57,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 11:56:57,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 11:56:57,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 11:56:57,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 11:56:57,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 11:56:57,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 11:56:57,090 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 11:56:57,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 11:56:57,090 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 11:56:57,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 11:56:57,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 11:56:57,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 11:56:57,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 11:56:57,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 11:56:57,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 11:56:57,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 11:56:57,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 11:56:57,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 11:56:57,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 11:56:57,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 11:56:57,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 11:56:57,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 11:56:57,093 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 11:56:57,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 11:56:57,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 11:56:57,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 11:56:57,544 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 11:56:57,545 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 11:56:57,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label02.c [2020-10-28 11:56:57,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/32b4993bb/1d2ccd2b079d47db8c0e439e39b7afc2/FLAG318a5f090 [2020-10-28 11:56:58,358 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 11:56:58,359 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label02.c [2020-10-28 11:56:58,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/32b4993bb/1d2ccd2b079d47db8c0e439e39b7afc2/FLAG318a5f090 [2020-10-28 11:56:58,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/32b4993bb/1d2ccd2b079d47db8c0e439e39b7afc2 [2020-10-28 11:56:58,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 11:56:58,634 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 11:56:58,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 11:56:58,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 11:56:58,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 11:56:58,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:56:58" (1/1) ... [2020-10-28 11:56:58,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522b80ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:58, skipping insertion in model container [2020-10-28 11:56:58,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:56:58" (1/1) ... [2020-10-28 11:56:58,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 11:56:58,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 11:56:59,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 11:56:59,131 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 11:56:59,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 11:56:59,351 INFO L208 MainTranslator]: Completed translation [2020-10-28 11:56:59,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:59 WrapperNode [2020-10-28 11:56:59,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 11:56:59,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 11:56:59,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 11:56:59,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 11:56:59,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:59" (1/1) ... [2020-10-28 11:56:59,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:59" (1/1) ... [2020-10-28 11:56:59,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:59" (1/1) ... [2020-10-28 11:56:59,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:59" (1/1) ... [2020-10-28 11:56:59,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:59" (1/1) ... [2020-10-28 11:56:59,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:59" (1/1) ... [2020-10-28 11:56:59,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:59" (1/1) ... [2020-10-28 11:56:59,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 11:56:59,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 11:56:59,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 11:56:59,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 11:56:59,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:59" (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 [2020-10-28 11:56:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 11:56:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 11:56:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 11:56:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 11:56:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 11:56:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 11:56:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 11:56:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 11:56:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 11:56:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 11:56:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 11:56:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 11:56:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 11:56:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 11:56:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 11:56:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 11:56:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 11:56:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 11:56:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 11:57:01,232 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 11:57:01,232 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 11:57:01,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:57:01 BoogieIcfgContainer [2020-10-28 11:57:01,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 11:57:01,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 11:57:01,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 11:57:01,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 11:57:01,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:56:58" (1/3) ... [2020-10-28 11:57:01,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4589d084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:57:01, skipping insertion in model container [2020-10-28 11:57:01,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:59" (2/3) ... [2020-10-28 11:57:01,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4589d084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:57:01, skipping insertion in model container [2020-10-28 11:57:01,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:57:01" (3/3) ... [2020-10-28 11:57:01,247 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label02.c [2020-10-28 11:57:01,259 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 11:57:01,264 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 11:57:01,278 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 11:57:01,309 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 11:57:01,309 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 11:57:01,309 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 11:57:01,309 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 11:57:01,309 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 11:57:01,309 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 11:57:01,310 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 11:57:01,310 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 11:57:01,331 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-28 11:57:01,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-28 11:57:01,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:01,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:01,342 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:01,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:01,348 INFO L82 PathProgramCache]: Analyzing trace with hash 987398036, now seen corresponding path program 1 times [2020-10-28 11:57:01,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:01,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686626931] [2020-10-28 11:57:01,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:01,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:02,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:02,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-28 11:57:02,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:02,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 582 [2020-10-28 11:57:02,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:02,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:57:02,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-28 11:57:02,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 11:57:02,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:02,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:02,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:02,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:02,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:02,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 11:57:02,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:02,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:57:02,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:02,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:57:02,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686626931] [2020-10-28 11:57:02,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 11:57:02,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 11:57:02,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098039384] [2020-10-28 11:57:02,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 11:57:02,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:02,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 11:57:02,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 11:57:02,498 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-28 11:57:04,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:04,442 INFO L93 Difference]: Finished difference Result 601 states and 1027 transitions. [2020-10-28 11:57:04,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:57:04,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2020-10-28 11:57:04,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:04,458 INFO L225 Difference]: With dead ends: 601 [2020-10-28 11:57:04,458 INFO L226 Difference]: Without dead ends: 303 [2020-10-28 11:57:04,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:57:04,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-28 11:57:04,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-28 11:57:04,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-28 11:57:04,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 431 transitions. [2020-10-28 11:57:04,543 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 431 transitions. Word has length 66 [2020-10-28 11:57:04,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:04,543 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 431 transitions. [2020-10-28 11:57:04,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 11:57:04,544 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 431 transitions. [2020-10-28 11:57:04,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-28 11:57:04,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:04,551 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:04,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 11:57:04,551 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:04,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:04,552 INFO L82 PathProgramCache]: Analyzing trace with hash 2139086640, now seen corresponding path program 1 times [2020-10-28 11:57:04,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:04,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057008346] [2020-10-28 11:57:04,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:04,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:05,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:05,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:06,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:06,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-28 11:57:06,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:57:06,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1543 [2020-10-28 11:57:06,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:06,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:06,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:06,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:57:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 11:57:06,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:06,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:06,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:06,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:06,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:06,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:06,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 11:57:06,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:06,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:06,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:06,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:06,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:57:06,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 11:57:06,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:06,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:06,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:06,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 11:57:06,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:06,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-28 11:57:06,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:06,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:06,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:06,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:06,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 11:57:06,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:06,674 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:57:06,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057008346] [2020-10-28 11:57:06,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 11:57:06,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 11:57:06,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486498469] [2020-10-28 11:57:06,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:06,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:06,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:06,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:06,679 INFO L87 Difference]: Start difference. First operand 299 states and 431 transitions. Second operand 7 states. [2020-10-28 11:57:08,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:08,502 INFO L93 Difference]: Finished difference Result 910 states and 1353 transitions. [2020-10-28 11:57:08,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 11:57:08,506 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2020-10-28 11:57:08,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:08,514 INFO L225 Difference]: With dead ends: 910 [2020-10-28 11:57:08,515 INFO L226 Difference]: Without dead ends: 617 [2020-10-28 11:57:08,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-28 11:57:08,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2020-10-28 11:57:08,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 597. [2020-10-28 11:57:08,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-28 11:57:08,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 784 transitions. [2020-10-28 11:57:08,619 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 784 transitions. Word has length 140 [2020-10-28 11:57:08,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:08,622 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 784 transitions. [2020-10-28 11:57:08,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:08,622 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 784 transitions. [2020-10-28 11:57:08,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-28 11:57:08,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:08,633 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:08,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 11:57:08,633 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:08,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:08,634 INFO L82 PathProgramCache]: Analyzing trace with hash -175593224, now seen corresponding path program 1 times [2020-10-28 11:57:08,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:08,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708230973] [2020-10-28 11:57:08,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:08,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:08,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:09,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:09,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-28 11:57:09,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:57:09,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 560 [2020-10-28 11:57:09,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:09,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:09,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:09,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 11:57:09,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 11:57:09,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:09,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:09,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:09,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:09,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:09,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:09,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 11:57:09,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:09,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:09,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:09,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:09,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:09,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:09,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:09,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:09,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 11:57:09,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:09,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 11:57:09,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:09,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:09,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:09,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:09,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 11:57:09,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:09,540 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 57 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:57:09,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708230973] [2020-10-28 11:57:09,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:09,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:57:09,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219880036] [2020-10-28 11:57:09,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:57:09,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:09,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:57:09,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:57:09,547 INFO L87 Difference]: Start difference. First operand 597 states and 784 transitions. Second operand 5 states. [2020-10-28 11:57:11,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:11,271 INFO L93 Difference]: Finished difference Result 1486 states and 2032 transitions. [2020-10-28 11:57:11,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:57:11,271 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2020-10-28 11:57:11,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:11,278 INFO L225 Difference]: With dead ends: 1486 [2020-10-28 11:57:11,278 INFO L226 Difference]: Without dead ends: 895 [2020-10-28 11:57:11,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:57:11,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2020-10-28 11:57:11,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 891. [2020-10-28 11:57:11,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-10-28 11:57:11,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1153 transitions. [2020-10-28 11:57:11,317 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1153 transitions. Word has length 145 [2020-10-28 11:57:11,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:11,318 INFO L481 AbstractCegarLoop]: Abstraction has 891 states and 1153 transitions. [2020-10-28 11:57:11,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:57:11,319 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1153 transitions. [2020-10-28 11:57:11,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-28 11:57:11,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:11,322 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:11,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 11:57:11,323 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:11,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:11,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1195610328, now seen corresponding path program 1 times [2020-10-28 11:57:11,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:11,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485116457] [2020-10-28 11:57:11,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:11,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:11,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:12,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:12,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-28 11:57:12,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:57:12,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 882 [2020-10-28 11:57:12,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:12,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:12,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:12,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:57:12,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 11:57:12,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:12,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:12,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:12,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:12,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:12,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:12,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 11:57:12,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:12,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:12,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:12,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:12,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:57:12,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:12,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:12,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:12,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:12,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 11:57:12,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:12,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-28 11:57:12,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:12,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:12,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:12,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:12,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 11:57:12,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:12,654 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:57:12,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485116457] [2020-10-28 11:57:12,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 11:57:12,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 11:57:12,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402281916] [2020-10-28 11:57:12,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:12,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:12,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:12,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:12,657 INFO L87 Difference]: Start difference. First operand 891 states and 1153 transitions. Second operand 7 states. [2020-10-28 11:57:14,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:14,800 INFO L93 Difference]: Finished difference Result 2774 states and 4153 transitions. [2020-10-28 11:57:14,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 11:57:14,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-10-28 11:57:14,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:14,825 INFO L225 Difference]: With dead ends: 2774 [2020-10-28 11:57:14,826 INFO L226 Difference]: Without dead ends: 1889 [2020-10-28 11:57:14,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 11:57:14,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1889 states. [2020-10-28 11:57:14,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1638. [2020-10-28 11:57:14,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1638 states. [2020-10-28 11:57:14,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 2116 transitions. [2020-10-28 11:57:14,943 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 2116 transitions. Word has length 161 [2020-10-28 11:57:14,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:14,944 INFO L481 AbstractCegarLoop]: Abstraction has 1638 states and 2116 transitions. [2020-10-28 11:57:14,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:14,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 2116 transitions. [2020-10-28 11:57:14,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-28 11:57:14,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:14,948 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:14,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 11:57:14,948 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:14,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:14,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1048467372, now seen corresponding path program 1 times [2020-10-28 11:57:14,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:14,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1432065900] [2020-10-28 11:57:14,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:15,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:15,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:15,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:16,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:16,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-28 11:57:16,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:57:16,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1379 [2020-10-28 11:57:16,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:16,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:16,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:16,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:57:16,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-28 11:57:16,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:16,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:16,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:16,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:16,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:16,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:16,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 11:57:16,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:16,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:16,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:16,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:16,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:57:16,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:16,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:16,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:16,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:16,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 11:57:16,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:16,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-28 11:57:16,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:16,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:16,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 11:57:16,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:17,005 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:57:17,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1432065900] [2020-10-28 11:57:17,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 11:57:17,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 11:57:17,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806189645] [2020-10-28 11:57:17,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:17,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:17,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:17,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:17,009 INFO L87 Difference]: Start difference. First operand 1638 states and 2116 transitions. Second operand 7 states. [2020-10-28 11:57:18,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:18,829 INFO L93 Difference]: Finished difference Result 3445 states and 4442 transitions. [2020-10-28 11:57:18,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 11:57:18,829 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-10-28 11:57:18,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:18,839 INFO L225 Difference]: With dead ends: 3445 [2020-10-28 11:57:18,840 INFO L226 Difference]: Without dead ends: 1813 [2020-10-28 11:57:18,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 11:57:18,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2020-10-28 11:57:18,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1805. [2020-10-28 11:57:18,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1805 states. [2020-10-28 11:57:18,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2291 transitions. [2020-10-28 11:57:18,908 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2291 transitions. Word has length 183 [2020-10-28 11:57:18,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:18,909 INFO L481 AbstractCegarLoop]: Abstraction has 1805 states and 2291 transitions. [2020-10-28 11:57:18,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:18,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2291 transitions. [2020-10-28 11:57:18,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-28 11:57:18,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:18,914 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:18,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 11:57:18,915 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:18,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:18,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1041768736, now seen corresponding path program 1 times [2020-10-28 11:57:18,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:18,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97500832] [2020-10-28 11:57:18,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:18,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:19,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:19,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:19,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:20,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:20,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-28 11:57:20,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:57:20,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1627 [2020-10-28 11:57:20,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:20,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:20,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:20,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 11:57:20,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 11:57:20,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:20,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:20,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:20,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:20,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:20,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:20,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 11:57:20,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:20,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:20,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:20,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:20,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:20,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:20,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:20,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:20,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 11:57:20,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:20,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 11:57:20,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:20,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:20,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 11:57:20,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:20,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 11:57:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:20,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:20,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:20,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 11:57:20,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:20,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-28 11:57:20,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:20,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:20,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:20,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:20,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 11:57:20,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:21,126 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 186 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 11:57:21,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97500832] [2020-10-28 11:57:21,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:21,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:57:21,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594208221] [2020-10-28 11:57:21,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:21,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:21,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:21,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:21,130 INFO L87 Difference]: Start difference. First operand 1805 states and 2291 transitions. Second operand 7 states. [2020-10-28 11:57:23,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:23,165 INFO L93 Difference]: Finished difference Result 4059 states and 5377 transitions. [2020-10-28 11:57:23,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 11:57:23,166 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 218 [2020-10-28 11:57:23,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:23,176 INFO L225 Difference]: With dead ends: 4059 [2020-10-28 11:57:23,176 INFO L226 Difference]: Without dead ends: 1809 [2020-10-28 11:57:23,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 11:57:23,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2020-10-28 11:57:23,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1787. [2020-10-28 11:57:23,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1787 states. [2020-10-28 11:57:23,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1787 states to 1787 states and 2194 transitions. [2020-10-28 11:57:23,255 INFO L78 Accepts]: Start accepts. Automaton has 1787 states and 2194 transitions. Word has length 218 [2020-10-28 11:57:23,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:23,255 INFO L481 AbstractCegarLoop]: Abstraction has 1787 states and 2194 transitions. [2020-10-28 11:57:23,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:23,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1787 states and 2194 transitions. [2020-10-28 11:57:23,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-28 11:57:23,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:23,262 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:23,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 11:57:23,263 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:23,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:23,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1861190820, now seen corresponding path program 1 times [2020-10-28 11:57:23,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:23,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70622646] [2020-10-28 11:57:23,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:23,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:23,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:24,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:24,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:24,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-28 11:57:24,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:57:24,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1398 [2020-10-28 11:57:24,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:24,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:24,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:24,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 11:57:24,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 11:57:24,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:24,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:24,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:24,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:24,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:24,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:24,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 11:57:24,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:24,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:24,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:24,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:24,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:24,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:24,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:24,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:24,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:24,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 11:57:24,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:24,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 11:57:24,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:24,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:24,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:24,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:24,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 11:57:24,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:24,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 11:57:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:24,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:25,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:25,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 11:57:25,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:25,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-28 11:57:25,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:25,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:25,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:25,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:25,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-28 11:57:25,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:25,207 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 183 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 11:57:25,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70622646] [2020-10-28 11:57:25,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:25,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:57:25,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980641715] [2020-10-28 11:57:25,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:25,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:25,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:25,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:25,211 INFO L87 Difference]: Start difference. First operand 1787 states and 2194 transitions. Second operand 7 states. [2020-10-28 11:57:27,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:27,092 INFO L93 Difference]: Finished difference Result 4021 states and 5144 transitions. [2020-10-28 11:57:27,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 11:57:27,093 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 234 [2020-10-28 11:57:27,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:27,106 INFO L225 Difference]: With dead ends: 4021 [2020-10-28 11:57:27,107 INFO L226 Difference]: Without dead ends: 2383 [2020-10-28 11:57:27,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 11:57:27,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2020-10-28 11:57:27,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2373. [2020-10-28 11:57:27,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2373 states. [2020-10-28 11:57:27,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 2990 transitions. [2020-10-28 11:57:27,201 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 2990 transitions. Word has length 234 [2020-10-28 11:57:27,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:27,202 INFO L481 AbstractCegarLoop]: Abstraction has 2373 states and 2990 transitions. [2020-10-28 11:57:27,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:27,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 2990 transitions. [2020-10-28 11:57:27,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-10-28 11:57:27,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:27,210 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:27,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 11:57:27,211 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:27,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:27,211 INFO L82 PathProgramCache]: Analyzing trace with hash 999293508, now seen corresponding path program 1 times [2020-10-28 11:57:27,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:27,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842467961] [2020-10-28 11:57:27,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:27,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:27,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:27,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:29,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:29,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 327 [2020-10-28 11:57:29,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:57:29,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2516 [2020-10-28 11:57:29,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:29,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:29,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:29,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 11:57:29,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 11:57:29,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:29,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:29,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:29,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:29,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:29,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:29,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:57:29,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:29,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:29,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:29,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:29,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:29,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:29,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:29,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:29,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:29,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 11:57:29,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:29,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 11:57:29,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:29,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:29,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:29,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:29,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 11:57:29,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:29,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 11:57:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:29,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:30,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:30,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 11:57:30,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:30,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-28 11:57:30,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:30,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 11:57:30,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:30,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-28 11:57:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:30,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:30,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:30,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 11:57:30,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:30,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 11:57:30,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:30,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-28 11:57:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:30,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:30,316 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 245 proven. 76 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-28 11:57:30,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842467961] [2020-10-28 11:57:30,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:30,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:57:30,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944870987] [2020-10-28 11:57:30,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:30,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:30,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:30,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:30,319 INFO L87 Difference]: Start difference. First operand 2373 states and 2990 transitions. Second operand 7 states. [2020-10-28 11:57:32,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:32,151 INFO L93 Difference]: Finished difference Result 4637 states and 5998 transitions. [2020-10-28 11:57:32,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 11:57:32,156 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 311 [2020-10-28 11:57:32,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:32,169 INFO L225 Difference]: With dead ends: 4637 [2020-10-28 11:57:32,169 INFO L226 Difference]: Without dead ends: 2413 [2020-10-28 11:57:32,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 11:57:32,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2020-10-28 11:57:32,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 1940. [2020-10-28 11:57:32,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1940 states. [2020-10-28 11:57:32,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 2369 transitions. [2020-10-28 11:57:32,240 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 2369 transitions. Word has length 311 [2020-10-28 11:57:32,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:32,241 INFO L481 AbstractCegarLoop]: Abstraction has 1940 states and 2369 transitions. [2020-10-28 11:57:32,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:32,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 2369 transitions. [2020-10-28 11:57:32,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2020-10-28 11:57:32,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:32,250 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:32,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 11:57:32,251 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:32,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:32,251 INFO L82 PathProgramCache]: Analyzing trace with hash -66158784, now seen corresponding path program 1 times [2020-10-28 11:57:32,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:32,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572073874] [2020-10-28 11:57:32,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:32,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:32,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:32,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:32,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:37,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:37,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 378 [2020-10-28 11:57:37,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:57:37,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-28 11:57:37,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:37,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:37,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:37,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-10-28 11:57:37,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-28 11:57:37,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:37,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:37,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:37,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:37,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:37,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:37,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 11:57:37,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:37,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:37,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:37,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:37,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:37,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:37,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:57:37,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:37,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 11:57:37,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:37,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:37,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:37,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:37,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:37,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:37,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:57:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:37,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:37,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:37,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 11:57:37,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:37,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 11:57:37,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:37,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:37,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:37,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:37,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 11:57:37,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:37,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-28 11:57:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:37,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:37,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:37,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:37,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 11:57:37,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:57:37,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-28 11:57:37,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:37,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:37,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:37,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:37,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-28 11:57:37,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:38,054 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 180 proven. 3 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-28 11:57:38,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572073874] [2020-10-28 11:57:38,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:38,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 11:57:38,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231249819] [2020-10-28 11:57:38,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 11:57:38,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:38,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 11:57:38,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:57:38,062 INFO L87 Difference]: Start difference. First operand 1940 states and 2369 transitions. Second operand 6 states. [2020-10-28 11:57:39,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:39,573 INFO L93 Difference]: Finished difference Result 4021 states and 4936 transitions. [2020-10-28 11:57:39,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:57:39,574 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 362 [2020-10-28 11:57:39,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:39,585 INFO L225 Difference]: With dead ends: 4021 [2020-10-28 11:57:39,585 INFO L226 Difference]: Without dead ends: 2230 [2020-10-28 11:57:39,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:39,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2020-10-28 11:57:39,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2226. [2020-10-28 11:57:39,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2226 states. [2020-10-28 11:57:39,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 2666 transitions. [2020-10-28 11:57:39,648 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 2666 transitions. Word has length 362 [2020-10-28 11:57:39,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:39,649 INFO L481 AbstractCegarLoop]: Abstraction has 2226 states and 2666 transitions. [2020-10-28 11:57:39,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 11:57:39,649 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 2666 transitions. [2020-10-28 11:57:39,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2020-10-28 11:57:39,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:39,659 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:39,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 11:57:39,659 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:39,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:39,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1773713316, now seen corresponding path program 1 times [2020-10-28 11:57:39,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:39,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308314130] [2020-10-28 11:57:39,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:39,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:39,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:40,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:40,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:44,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:44,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 393 [2020-10-28 11:57:44,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:57:44,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-28 11:57:44,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:44,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:44,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:44,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 204 [2020-10-28 11:57:44,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 11:57:44,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:44,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:44,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:44,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:44,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:44,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:44,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 11:57:44,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:44,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:44,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:44,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:44,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:44,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:44,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:44,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:44,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:44,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:57:44,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:44,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 11:57:44,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:44,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:44,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:44,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:44,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:44,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:44,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:57:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:44,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:45,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:45,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 11:57:45,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:45,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 11:57:45,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:45,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:45,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:45,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:45,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 11:57:45,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:45,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-28 11:57:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:45,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:45,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:45,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 11:57:45,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:45,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-28 11:57:45,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:45,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:45,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:45,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:45,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 11:57:45,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:45,393 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-28 11:57:45,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308314130] [2020-10-28 11:57:45,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:45,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:57:45,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134448643] [2020-10-28 11:57:45,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:45,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:45,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:45,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:45,395 INFO L87 Difference]: Start difference. First operand 2226 states and 2666 transitions. Second operand 7 states. [2020-10-28 11:57:47,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:47,291 INFO L93 Difference]: Finished difference Result 4460 states and 5406 transitions. [2020-10-28 11:57:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 11:57:47,297 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 377 [2020-10-28 11:57:47,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:47,307 INFO L225 Difference]: With dead ends: 4460 [2020-10-28 11:57:47,308 INFO L226 Difference]: Without dead ends: 2383 [2020-10-28 11:57:47,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-28 11:57:47,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2020-10-28 11:57:47,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2375. [2020-10-28 11:57:47,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2375 states. [2020-10-28 11:57:47,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 2843 transitions. [2020-10-28 11:57:47,376 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 2843 transitions. Word has length 377 [2020-10-28 11:57:47,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:47,376 INFO L481 AbstractCegarLoop]: Abstraction has 2375 states and 2843 transitions. [2020-10-28 11:57:47,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:47,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 2843 transitions. [2020-10-28 11:57:47,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-10-28 11:57:47,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:47,388 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:47,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 11:57:47,389 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:47,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:47,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1242993392, now seen corresponding path program 1 times [2020-10-28 11:57:47,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:47,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881659645] [2020-10-28 11:57:47,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:47,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:47,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:48,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:52,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:52,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 403 [2020-10-28 11:57:52,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:57:52,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4655 [2020-10-28 11:57:52,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:52,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:52,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:52,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 11:57:52,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-28 11:57:52,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:52,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:52,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:52,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:52,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:52,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:52,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 11:57:52,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:52,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:52,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:52,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:52,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:52,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:52,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:52,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:52,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:52,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:57:52,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:52,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-28 11:57:52,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:52,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:52,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:52,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:52,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 11:57:52,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:52,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:57:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:52,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:52,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:52,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 11:57:52,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:52,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-28 11:57:52,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:52,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:52,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:52,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:52,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 11:57:52,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:52,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-28 11:57:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:52,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:52,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:52,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 11:57:52,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:52,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-28 11:57:52,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:52,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:52,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:52,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 11:57:52,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:52,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:52,925 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 262 proven. 86 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-28 11:57:52,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881659645] [2020-10-28 11:57:52,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:52,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:57:52,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895978338] [2020-10-28 11:57:52,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:52,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:52,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:52,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:52,927 INFO L87 Difference]: Start difference. First operand 2375 states and 2843 transitions. Second operand 7 states. [2020-10-28 11:57:54,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:54,797 INFO L93 Difference]: Finished difference Result 4905 states and 5902 transitions. [2020-10-28 11:57:54,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 11:57:54,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 387 [2020-10-28 11:57:54,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:54,817 INFO L225 Difference]: With dead ends: 4905 [2020-10-28 11:57:54,817 INFO L226 Difference]: Without dead ends: 2679 [2020-10-28 11:57:54,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 11:57:54,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2679 states. [2020-10-28 11:57:54,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2679 to 2675. [2020-10-28 11:57:54,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2675 states. [2020-10-28 11:57:54,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 3176 transitions. [2020-10-28 11:57:54,900 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 3176 transitions. Word has length 387 [2020-10-28 11:57:54,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:54,901 INFO L481 AbstractCegarLoop]: Abstraction has 2675 states and 3176 transitions. [2020-10-28 11:57:54,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:54,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 3176 transitions. [2020-10-28 11:57:54,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2020-10-28 11:57:54,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:54,909 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:54,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 11:57:54,910 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:54,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:54,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1391582712, now seen corresponding path program 1 times [2020-10-28 11:57:54,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:54,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873479519] [2020-10-28 11:57:54,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:55,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:55,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:56,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:56,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 422 [2020-10-28 11:57:56,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:57:56,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1307 [2020-10-28 11:57:56,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:56,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:56,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:56,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-28 11:57:56,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 11:57:56,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:56,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:56,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:56,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:56,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:56,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:56,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 11:57:56,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:56,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:56,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:56,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:56,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:56,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:56,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:56,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:56,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 11:57:56,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:56,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 11:57:56,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:56,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:56,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:56,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:56,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:56,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:56,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 11:57:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:56,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:56,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:56,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 11:57:56,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:56,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 11:57:56,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:56,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:56,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:56,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:56,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:56,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:56,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-28 11:57:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:56,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:56,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:56,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 11:57:56,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:56,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-28 11:57:56,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:56,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:56,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:56,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:56,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-28 11:57:56,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:56,877 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 177 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-28 11:57:56,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873479519] [2020-10-28 11:57:56,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:56,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:57:56,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540367132] [2020-10-28 11:57:56,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:57:56,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:56,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:57:56,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:57:56,880 INFO L87 Difference]: Start difference. First operand 2675 states and 3176 transitions. Second operand 5 states. [2020-10-28 11:57:58,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:58,398 INFO L93 Difference]: Finished difference Result 5345 states and 6415 transitions. [2020-10-28 11:57:58,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:57:58,398 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 406 [2020-10-28 11:57:58,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:58,400 INFO L225 Difference]: With dead ends: 5345 [2020-10-28 11:57:58,400 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 11:57:58,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:57:58,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 11:57:58,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 11:57:58,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 11:57:58,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 11:57:58,410 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 406 [2020-10-28 11:57:58,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:58,411 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 11:57:58,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:57:58,411 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 11:57:58,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 11:57:58,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 11:57:58,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 11:57:58,808 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 132 [2020-10-28 11:57:59,387 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 132 [2020-10-28 11:57:59,667 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 30 [2020-10-28 11:58:00,212 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 42 [2020-10-28 11:58:00,378 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 29 [2020-10-28 11:58:00,563 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 30 [2020-10-28 11:58:00,567 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 11:58:00,567 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 11:58:00,567 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 11:58:00,568 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 11:58:00,568 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 11:58:00,569 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)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-28 11:58:00,569 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 11:58:00,570 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-28 11:58:00,570 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-28 11:58:00,570 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-28 11:58:00,570 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 11:58:00,570 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 11:58:00,570 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 11:58:00,570 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 11:58:00,570 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 11:58:00,570 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 11:58:00,571 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-28 11:58:00,571 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-28 11:58:00,571 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-28 11:58:00,572 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-28 11:58:00,572 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,572 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,572 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,572 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,572 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,572 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,572 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-28 11:58:00,572 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-28 11:58:00,572 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 11:58:00,573 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 11:58:00,573 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 11:58:00,573 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 11:58:00,573 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 11:58:00,573 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 11:58:00,573 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-28 11:58:00,573 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-28 11:58:00,574 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-28 11:58:00,574 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,574 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,574 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,574 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,574 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,574 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-28 11:58:00,574 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-28 11:58:00,574 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-28 11:58:00,575 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-28 11:58:00,575 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 11:58:00,575 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 11:58:00,575 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 11:58:00,575 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 11:58:00,575 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 11:58:00,576 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-28 11:58:00,576 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-28 11:58:00,576 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-28 11:58:00,576 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-28 11:58:00,576 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-28 11:58:00,576 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,576 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,577 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,578 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,578 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,578 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-28 11:58:00,578 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 11:58:00,578 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 11:58:00,578 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 11:58:00,578 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 11:58:00,578 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 11:58:00,578 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-28 11:58:00,578 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-28 11:58:00,578 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-28 11:58:00,579 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-28 11:58:00,579 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,579 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,579 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,579 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,579 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,579 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-28 11:58:00,579 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-28 11:58:00,579 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-28 11:58:00,579 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 11:58:00,579 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 11:58:00,579 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 11:58:00,580 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 11:58:00,580 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 11:58:00,580 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-28 11:58:00,580 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-28 11:58:00,580 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-28 11:58:00,580 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-28 11:58:00,580 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-28 11:58:00,580 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,580 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,580 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,581 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,581 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,581 INFO L270 CegarLoopResult]: At program point L183(line 183) the Hoare annotation is: (and (or (not (= 0 |old(~a10~0)|)) (not (= 10 |old(~a19~0)|))) (not (= 3 |old(~a10~0)|)) (not (= |old(~a10~0)| 1)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 2 |old(~a10~0)|)) (not (= 8 |old(~a19~0)|))) [2020-10-28 11:58:00,581 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 11:58:00,581 INFO L274 CegarLoopResult]: For program point L183-1(line 183) no Hoare annotation was computed. [2020-10-28 11:58:00,581 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 11:58:00,582 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 11:58:00,582 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 11:58:00,582 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,582 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,582 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-28 11:58:00,582 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-28 11:58:00,582 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-28 11:58:00,583 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-28 11:58:00,583 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,583 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,583 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,583 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,583 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,583 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-28 11:58:00,583 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-28 11:58:00,583 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-28 11:58:00,583 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-28 11:58:00,584 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-28 11:58:00,584 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 11:58:00,584 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 11:58:00,584 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 11:58:00,584 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 11:58:00,584 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-28 11:58:00,584 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-28 11:58:00,585 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-28 11:58:00,585 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-28 11:58:00,585 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,585 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,585 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,585 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,585 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 11:58:00,585 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,585 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,586 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-28 11:58:00,586 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-28 11:58:00,586 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-28 11:58:00,586 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 11:58:00,586 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 11:58:00,586 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 11:58:00,586 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 11:58:00,586 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 11:58:00,586 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 11:58:00,586 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-28 11:58:00,586 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-28 11:58:00,586 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-28 11:58:00,587 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-28 11:58:00,587 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,587 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,587 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,587 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,587 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,587 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,587 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-28 11:58:00,588 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or .cse0 (not (= 8 |old(~a19~0)|))) (or (not (= 9 |old(~a19~0)|)) .cse0) (or .cse0 (not (= 0 |old(~a10~0)|)) (not (= 10 |old(~a19~0)|))) (or .cse0 (not (= |old(~a10~0)| 1))) (or .cse0 (not (<= |old(~a1~0)| 23))) (or .cse0 (not (= 2 |old(~a10~0)|))) (or (not (= 3 |old(~a10~0)|)) .cse0))) [2020-10-28 11:58:00,588 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-28 11:58:00,588 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-28 11:58:00,588 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 11:58:00,588 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 11:58:00,588 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 11:58:00,588 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 11:58:00,588 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 11:58:00,589 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 11:58:00,589 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-28 11:58:00,589 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-28 11:58:00,589 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-28 11:58:00,589 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-28 11:58:00,589 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-28 11:58:00,589 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,589 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,589 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,590 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,590 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,590 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,590 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-28 11:58:00,590 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 11:58:00,590 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 11:58:00,590 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 11:58:00,590 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 11:58:00,590 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 11:58:00,590 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 11:58:00,590 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-28 11:58:00,591 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-28 11:58:00,591 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-28 11:58:00,591 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-28 11:58:00,591 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-28 11:58:00,591 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-28 11:58:00,591 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,591 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,591 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,591 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,591 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,591 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,592 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-28 11:58:00,592 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-28 11:58:00,592 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-28 11:58:00,592 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 11:58:00,592 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 11:58:00,592 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 11:58:00,592 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 11:58:00,592 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 11:58:00,592 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 11:58:00,592 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-28 11:58:00,592 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-28 11:58:00,593 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-28 11:58:00,593 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,593 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,593 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,593 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,593 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,593 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:00,593 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 11:58:00,593 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-10-28 11:58:00,593 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 11:58:00,594 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 11:58:00,594 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 0 |old(~a10~0)|))) [2020-10-28 11:58:00,594 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-28 11:58:00,594 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (or (= ~a19~0 8) (= ~a10~0 1) (= ~a10~0 3) (= ~a10~0 2) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 0) (= ~a19~0 10)) (<= ~a1~0 23)) [2020-10-28 11:58:00,594 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-28 11:58:00,594 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-28 11:58:00,594 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (or (= ~a19~0 8) (= ~a10~0 1) (= ~a10~0 3) (= ~a10~0 2) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 0) (= ~a19~0 10)) (<= ~a1~0 23)) [2020-10-28 11:58:00,594 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-28 11:58:00,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:58:00 BoogieIcfgContainer [2020-10-28 11:58:00,629 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 11:58:00,633 INFO L168 Benchmark]: Toolchain (without parser) took 62000.95 ms. Allocated memory was 125.8 MB in the beginning and 1.1 GB in the end (delta: 966.8 MB). Free memory was 99.5 MB in the beginning and 439.4 MB in the end (delta: -339.8 MB). Peak memory consumption was 627.3 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:00,636 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory is still 89.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 11:58:00,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.38 ms. Allocated memory was 125.8 MB in the beginning and 165.7 MB in the end (delta: 39.8 MB). Free memory was 98.8 MB in the beginning and 145.1 MB in the end (delta: -46.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:00,638 INFO L168 Benchmark]: Boogie Preprocessor took 160.40 ms. Allocated memory is still 165.7 MB. Free memory was 145.1 MB in the beginning and 140.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:00,641 INFO L168 Benchmark]: RCFGBuilder took 1721.72 ms. Allocated memory is still 165.7 MB. Free memory was 140.4 MB in the beginning and 133.3 MB in the end (delta: 7.1 MB). Peak memory consumption was 51.2 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:00,644 INFO L168 Benchmark]: TraceAbstraction took 59390.31 ms. Allocated memory was 165.7 MB in the beginning and 1.1 GB in the end (delta: 926.9 MB). Free memory was 132.8 MB in the beginning and 439.4 MB in the end (delta: -306.5 MB). Peak memory consumption was 620.4 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:00,649 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory is still 89.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 716.38 ms. Allocated memory was 125.8 MB in the beginning and 165.7 MB in the end (delta: 39.8 MB). Free memory was 98.8 MB in the beginning and 145.1 MB in the end (delta: -46.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 160.40 ms. Allocated memory is still 165.7 MB. Free memory was 145.1 MB in the beginning and 140.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1721.72 ms. Allocated memory is still 165.7 MB. Free memory was 140.4 MB in the beginning and 133.3 MB in the end (delta: 7.1 MB). Peak memory consumption was 51.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 59390.31 ms. Allocated memory was 165.7 MB in the beginning and 1.1 GB in the end (delta: 926.9 MB). Free memory was 132.8 MB in the beginning and 439.4 MB in the end (delta: -306.5 MB). Peak memory consumption was 620.4 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: 584]: Loop Invariant Derived loop invariant: ((((((((a19 == 8 || a10 == 1) || a10 == 3) || a10 == 2) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || a19 == 9) || !(0 == \old(a10))) || (a10 == 0 && a19 == 10)) || a1 <= 23 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 57.1s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 22.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 331 SDtfs, 4284 SDslu, 422 SDs, 0 SdLazy, 10721 SolverSat, 1457 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2675occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 808 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 302 PreInvPairs, 348 NumberOfFragments, 316 HoareAnnotationTreeSize, 302 FomulaSimplifications, 39874 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 3368 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 31.9s InterpolantComputationTime, 2990 NumberOfCodeBlocks, 2990 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2978 ConstructedInterpolants, 0 QuantifiedInterpolants, 2093165 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 2632/2807 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...