/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_label27.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 06:39:26,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 06:39:26,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 06:39:26,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 06:39:26,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 06:39:26,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 06:39:26,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 06:39:26,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 06:39:26,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 06:39:26,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 06:39:26,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 06:39:26,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 06:39:26,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 06:39:26,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 06:39:26,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 06:39:26,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 06:39:26,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 06:39:26,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 06:39:26,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 06:39:26,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 06:39:26,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 06:39:26,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 06:39:26,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 06:39:26,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 06:39:26,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 06:39:26,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 06:39:26,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 06:39:26,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 06:39:26,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 06:39:26,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 06:39:26,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 06:39:26,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 06:39:26,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 06:39:26,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 06:39:26,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 06:39:26,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 06:39:26,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 06:39:26,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 06:39:26,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 06:39:26,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 06:39:26,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 06:39:26,504 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 [2020-10-29 06:39:26,553 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 06:39:26,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 06:39:26,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 06:39:26,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 06:39:26,559 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 06:39:26,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 06:39:26,559 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 06:39:26,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 06:39:26,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 06:39:26,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 06:39:26,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 06:39:26,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 06:39:26,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 06:39:26,562 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 06:39:26,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 06:39:26,562 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 06:39:26,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 06:39:26,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 06:39:26,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 06:39:26,563 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 06:39:26,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 06:39:26,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 06:39:26,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 06:39:26,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 06:39:26,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 06:39:26,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 06:39:26,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 06:39:26,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 06:39:26,565 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 06:39:26,565 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 06:39:27,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 06:39:27,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 06:39:27,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 06:39:27,098 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 06:39:27,099 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 06:39:27,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label27.c [2020-10-29 06:39:27,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82789f248/2cb70eefd52545cfa178adb1765d8cc5/FLAG482bbfd4c [2020-10-29 06:39:27,926 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 06:39:27,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label27.c [2020-10-29 06:39:27,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82789f248/2cb70eefd52545cfa178adb1765d8cc5/FLAG482bbfd4c [2020-10-29 06:39:28,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82789f248/2cb70eefd52545cfa178adb1765d8cc5 [2020-10-29 06:39:28,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 06:39:28,215 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 06:39:28,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 06:39:28,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 06:39:28,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 06:39:28,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:39:28" (1/1) ... [2020-10-29 06:39:28,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@132a9d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:39:28, skipping insertion in model container [2020-10-29 06:39:28,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:39:28" (1/1) ... [2020-10-29 06:39:28,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 06:39:28,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 06:39:28,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:39:28,868 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 06:39:29,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:39:29,058 INFO L208 MainTranslator]: Completed translation [2020-10-29 06:39:29,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:39:29 WrapperNode [2020-10-29 06:39:29,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 06:39:29,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 06:39:29,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 06:39:29,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 06:39:29,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:39:29" (1/1) ... [2020-10-29 06:39:29,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:39:29" (1/1) ... [2020-10-29 06:39:29,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:39:29" (1/1) ... [2020-10-29 06:39:29,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:39:29" (1/1) ... [2020-10-29 06:39:29,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:39:29" (1/1) ... [2020-10-29 06:39:29,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:39:29" (1/1) ... [2020-10-29 06:39:29,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:39:29" (1/1) ... [2020-10-29 06:39:29,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 06:39:29,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 06:39:29,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 06:39:29,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 06:39:29,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:39:29" (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 [2020-10-29 06:39:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 06:39:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 06:39:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 06:39:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 06:39:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 06:39:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 06:39:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 06:39:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 06:39:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 06:39:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 06:39:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 06:39:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 06:39:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 06:39:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 06:39:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 06:39:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 06:39:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 06:39:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 06:39:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 06:39:30,683 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 06:39:30,683 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 06:39:30,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:39:30 BoogieIcfgContainer [2020-10-29 06:39:30,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 06:39:30,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 06:39:30,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 06:39:30,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 06:39:30,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:39:28" (1/3) ... [2020-10-29 06:39:30,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff4921a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:39:30, skipping insertion in model container [2020-10-29 06:39:30,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:39:29" (2/3) ... [2020-10-29 06:39:30,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff4921a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:39:30, skipping insertion in model container [2020-10-29 06:39:30,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:39:30" (3/3) ... [2020-10-29 06:39:30,695 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label27.c [2020-10-29 06:39:30,708 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 06:39:30,714 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 06:39:30,728 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 06:39:30,761 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 06:39:30,761 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 06:39:30,761 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 06:39:30,762 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 06:39:30,762 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 06:39:30,762 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 06:39:30,762 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 06:39:30,762 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 06:39:30,788 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-29 06:39:30,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-29 06:39:30,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:30,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:39:30,800 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:30,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:30,807 INFO L82 PathProgramCache]: Analyzing trace with hash 544365738, now seen corresponding path program 1 times [2020-10-29 06:39:30,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:30,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1565419644] [2020-10-29 06:39:30,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:31,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:31,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:31,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 06:39:31,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:31,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 626 [2020-10-29 06:39:31,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:31,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:39:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:39:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 06:39:31,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 06:39:31,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:31,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:31,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:31,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:31,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:31,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 06:39:31,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:31,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:31,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:31,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:31,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:39:31,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:31,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:39:31,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1565419644] [2020-10-29 06:39:31,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:39:31,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 06:39:31,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399143972] [2020-10-29 06:39:31,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 06:39:31,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:31,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 06:39:31,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 06:39:31,940 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-29 06:39:33,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:33,821 INFO L93 Difference]: Finished difference Result 586 states and 1013 transitions. [2020-10-29 06:39:33,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:39:33,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-29 06:39:33,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:33,838 INFO L225 Difference]: With dead ends: 586 [2020-10-29 06:39:33,838 INFO L226 Difference]: Without dead ends: 303 [2020-10-29 06:39:33,846 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 [2020-10-29 06:39:33,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-29 06:39:33,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2020-10-29 06:39:33,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-29 06:39:33,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 424 transitions. [2020-10-29 06:39:33,929 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 424 transitions. Word has length 67 [2020-10-29 06:39:33,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:33,930 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 424 transitions. [2020-10-29 06:39:33,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 06:39:33,930 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 424 transitions. [2020-10-29 06:39:33,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-29 06:39:33,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:33,938 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:39:33,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 06:39:33,938 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:33,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:33,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1472539947, now seen corresponding path program 1 times [2020-10-29 06:39:33,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:33,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126371889] [2020-10-29 06:39:33,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:34,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:34,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:35,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:35,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:35,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-29 06:39:35,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:39:35,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1626 [2020-10-29 06:39:35,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:35,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:35,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 06:39:35,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:39:35,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-29 06:39:35,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:35,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:35,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:35,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:35,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:35,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:35,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 06:39:35,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:35,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:35,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:35,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:35,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:39:35,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:39:35,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:35,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:35,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:35,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:35,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:39:35,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:39:35,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-29 06:39:35,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:35,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:35,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:35,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:35,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 06:39:35,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:36,056 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 06:39:36,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126371889] [2020-10-29 06:39:36,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:36,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 06:39:36,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443782222] [2020-10-29 06:39:36,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 06:39:36,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:36,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 06:39:36,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:39:36,061 INFO L87 Difference]: Start difference. First operand 297 states and 424 transitions. Second operand 6 states. [2020-10-29 06:39:38,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:38,417 INFO L93 Difference]: Finished difference Result 1178 states and 1739 transitions. [2020-10-29 06:39:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 06:39:38,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2020-10-29 06:39:38,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:38,430 INFO L225 Difference]: With dead ends: 1178 [2020-10-29 06:39:38,430 INFO L226 Difference]: Without dead ends: 887 [2020-10-29 06:39:38,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:39:38,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-10-29 06:39:38,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 877. [2020-10-29 06:39:38,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2020-10-29 06:39:38,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1217 transitions. [2020-10-29 06:39:38,524 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1217 transitions. Word has length 139 [2020-10-29 06:39:38,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:38,525 INFO L481 AbstractCegarLoop]: Abstraction has 877 states and 1217 transitions. [2020-10-29 06:39:38,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 06:39:38,526 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1217 transitions. [2020-10-29 06:39:38,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-29 06:39:38,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:38,533 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:39:38,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 06:39:38,534 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:38,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:38,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1093741769, now seen corresponding path program 1 times [2020-10-29 06:39:38,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:38,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330201137] [2020-10-29 06:39:38,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:38,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:38,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:39,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:39,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 06:39:39,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:39:39,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1107 [2020-10-29 06:39:39,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:39,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:39,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:39,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-29 06:39:39,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:39:39,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:39,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:39,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:39,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:39,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:39,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:39,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 06:39:39,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:39,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:39,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:39,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:39,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:39,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:39,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:39,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:40,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:40,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 06:39:40,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:40,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 06:39:40,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:40,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:40,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:40,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:40,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 06:39:40,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:40,070 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:39:40,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330201137] [2020-10-29 06:39:40,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:40,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:39:40,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878841805] [2020-10-29 06:39:40,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:39:40,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:40,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:39:40,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:39:40,076 INFO L87 Difference]: Start difference. First operand 877 states and 1217 transitions. Second operand 5 states. [2020-10-29 06:39:41,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:41,535 INFO L93 Difference]: Finished difference Result 2618 states and 3703 transitions. [2020-10-29 06:39:41,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:39:41,536 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-10-29 06:39:41,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:41,553 INFO L225 Difference]: With dead ends: 2618 [2020-10-29 06:39:41,553 INFO L226 Difference]: Without dead ends: 1747 [2020-10-29 06:39:41,556 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 [2020-10-29 06:39:41,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2020-10-29 06:39:41,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1461. [2020-10-29 06:39:41,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1461 states. [2020-10-29 06:39:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 1888 transitions. [2020-10-29 06:39:41,617 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 1888 transitions. Word has length 148 [2020-10-29 06:39:41,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:41,617 INFO L481 AbstractCegarLoop]: Abstraction has 1461 states and 1888 transitions. [2020-10-29 06:39:41,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:39:41,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 1888 transitions. [2020-10-29 06:39:41,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-29 06:39:41,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:41,628 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:39:41,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 06:39:41,629 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:41,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:41,629 INFO L82 PathProgramCache]: Analyzing trace with hash -411900036, now seen corresponding path program 1 times [2020-10-29 06:39:41,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:41,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499431384] [2020-10-29 06:39:41,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:41,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:41,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:42,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:43,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:43,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-29 06:39:43,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:39:43,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1750 [2020-10-29 06:39:43,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:43,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:43,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:43,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-29 06:39:43,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-29 06:39:43,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:43,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:43,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:43,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:43,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:43,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:43,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:39:43,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:43,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:43,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:43,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:43,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:43,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:43,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:43,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:43,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:43,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:39:43,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:43,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 06:39:43,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:43,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:43,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:43,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:43,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:39:43,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:43,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 06:39:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:43,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:43,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:43,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-29 06:39:43,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:43,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-29 06:39:43,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:43,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:43,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:43,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:39:43,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-29 06:39:43,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:43,950 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:39:43,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499431384] [2020-10-29 06:39:43,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:43,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:39:43,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733581056] [2020-10-29 06:39:43,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:39:43,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:43,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:39:43,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:39:43,955 INFO L87 Difference]: Start difference. First operand 1461 states and 1888 transitions. Second operand 7 states. [2020-10-29 06:39:45,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:45,658 INFO L93 Difference]: Finished difference Result 3679 states and 4938 transitions. [2020-10-29 06:39:45,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:39:45,661 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 219 [2020-10-29 06:39:45,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:45,685 INFO L225 Difference]: With dead ends: 3679 [2020-10-29 06:39:45,685 INFO L226 Difference]: Without dead ends: 2224 [2020-10-29 06:39:45,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:39:45,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2020-10-29 06:39:45,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2063. [2020-10-29 06:39:45,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2063 states. [2020-10-29 06:39:45,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2063 states to 2063 states and 2585 transitions. [2020-10-29 06:39:45,794 INFO L78 Accepts]: Start accepts. Automaton has 2063 states and 2585 transitions. Word has length 219 [2020-10-29 06:39:45,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:45,796 INFO L481 AbstractCegarLoop]: Abstraction has 2063 states and 2585 transitions. [2020-10-29 06:39:45,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:39:45,796 INFO L276 IsEmpty]: Start isEmpty. Operand 2063 states and 2585 transitions. [2020-10-29 06:39:45,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-29 06:39:45,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:45,805 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, 3, 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] [2020-10-29 06:39:45,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 06:39:45,805 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:45,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:45,806 INFO L82 PathProgramCache]: Analyzing trace with hash -421636418, now seen corresponding path program 1 times [2020-10-29 06:39:45,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:45,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516186978] [2020-10-29 06:39:45,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:45,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:45,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:46,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:47,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:47,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:47,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-29 06:39:47,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:39:47,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1902 [2020-10-29 06:39:47,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:47,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:47,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:47,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-29 06:39:47,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 06:39:47,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:47,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:47,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:47,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:47,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:47,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:47,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:39:47,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:47,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:47,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:47,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:47,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:47,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:47,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:47,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:47,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:47,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 06:39:47,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:47,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 06:39:47,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:47,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:39:47,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:48,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 06:39:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:48,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:48,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:48,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 06:39:48,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:48,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-29 06:39:48,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:48,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:48,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:48,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:39:48,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:39:48,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:48,252 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:39:48,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [516186978] [2020-10-29 06:39:48,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:48,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:39:48,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649426014] [2020-10-29 06:39:48,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:39:48,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:48,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:39:48,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:39:48,256 INFO L87 Difference]: Start difference. First operand 2063 states and 2585 transitions. Second operand 7 states. [2020-10-29 06:39:50,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:50,115 INFO L93 Difference]: Finished difference Result 5038 states and 6508 transitions. [2020-10-29 06:39:50,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:39:50,116 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 219 [2020-10-29 06:39:50,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:50,130 INFO L225 Difference]: With dead ends: 5038 [2020-10-29 06:39:50,131 INFO L226 Difference]: Without dead ends: 1962 [2020-10-29 06:39:50,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:39:50,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-10-29 06:39:50,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1924. [2020-10-29 06:39:50,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1924 states. [2020-10-29 06:39:50,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1924 states to 1924 states and 2365 transitions. [2020-10-29 06:39:50,222 INFO L78 Accepts]: Start accepts. Automaton has 1924 states and 2365 transitions. Word has length 219 [2020-10-29 06:39:50,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:50,222 INFO L481 AbstractCegarLoop]: Abstraction has 1924 states and 2365 transitions. [2020-10-29 06:39:50,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:39:50,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states and 2365 transitions. [2020-10-29 06:39:50,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-29 06:39:50,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:50,228 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, 3, 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] [2020-10-29 06:39:50,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 06:39:50,229 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:50,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:50,229 INFO L82 PathProgramCache]: Analyzing trace with hash -775063338, now seen corresponding path program 1 times [2020-10-29 06:39:50,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:50,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320293242] [2020-10-29 06:39:50,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:50,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:50,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:50,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:53,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:55,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:55,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 06:39:55,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:39:55,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4780 [2020-10-29 06:39:55,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:55,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:55,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:55,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-29 06:39:55,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:39:55,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:55,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:55,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:55,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:55,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:55,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:55,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 06:39:55,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:55,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:55,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:55,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:55,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:55,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:55,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:55,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:55,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:55,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 06:39:55,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:55,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 06:39:55,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:55,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:55,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:55,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:55,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:55,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:55,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 06:39:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:55,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:55,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:55,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-29 06:39:55,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:55,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 06:39:55,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:55,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:55,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:55,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 06:39:55,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:55,549 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-29 06:39:55,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320293242] [2020-10-29 06:39:55,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:55,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:39:55,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625023641] [2020-10-29 06:39:55,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:39:55,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:55,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:39:55,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:39:55,553 INFO L87 Difference]: Start difference. First operand 1924 states and 2365 transitions. Second operand 5 states. [2020-10-29 06:39:56,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:56,950 INFO L93 Difference]: Finished difference Result 2660 states and 3357 transitions. [2020-10-29 06:39:56,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:39:56,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 226 [2020-10-29 06:39:56,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:56,967 INFO L225 Difference]: With dead ends: 2660 [2020-10-29 06:39:56,968 INFO L226 Difference]: Without dead ends: 2657 [2020-10-29 06:39:56,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:39:56,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2657 states. [2020-10-29 06:39:57,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2657 to 2220. [2020-10-29 06:39:57,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2220 states. [2020-10-29 06:39:57,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 2842 transitions. [2020-10-29 06:39:57,069 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 2842 transitions. Word has length 226 [2020-10-29 06:39:57,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:57,069 INFO L481 AbstractCegarLoop]: Abstraction has 2220 states and 2842 transitions. [2020-10-29 06:39:57,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:39:57,070 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 2842 transitions. [2020-10-29 06:39:57,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-29 06:39:57,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:57,078 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, 3, 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] [2020-10-29 06:39:57,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 06:39:57,078 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:57,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:57,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1190164734, now seen corresponding path program 1 times [2020-10-29 06:39:57,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:57,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269665509] [2020-10-29 06:39:57,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:57,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:57,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:58,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:00,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:00,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:00,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-10-29 06:40:00,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:40:00,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3807 [2020-10-29 06:40:00,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:00,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:00,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:40:00,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-29 06:40:00,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-29 06:40:00,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:01,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:40:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:01,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:01,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:01,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:40:01,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:01,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:40:01,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:01,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:40:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:01,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:40:01,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:40:01,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:40:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:01,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:01,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:01,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 06:40:01,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:01,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-29 06:40:01,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:01,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:01,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:40:01,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:01,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 06:40:01,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:01,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 06:40:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:01,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:01,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:01,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:01,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:01,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 06:40:01,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:40:01,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-29 06:40:01,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:01,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:01,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:40:01,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:01,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-29 06:40:01,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:01,700 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 116 proven. 8 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-29 06:40:01,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269665509] [2020-10-29 06:40:01,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:40:01,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:40:01,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544447505] [2020-10-29 06:40:01,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:40:01,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:40:01,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:40:01,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:40:01,704 INFO L87 Difference]: Start difference. First operand 2220 states and 2842 transitions. Second operand 7 states. [2020-10-29 06:40:03,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:40:03,848 INFO L93 Difference]: Finished difference Result 5162 states and 6828 transitions. [2020-10-29 06:40:03,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 06:40:03,848 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2020-10-29 06:40:03,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:40:03,849 INFO L225 Difference]: With dead ends: 5162 [2020-10-29 06:40:03,850 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 06:40:03,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-29 06:40:03,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 06:40:03,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 06:40:03,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 06:40:03,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 06:40:03,863 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 246 [2020-10-29 06:40:03,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:40:03,864 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 06:40:03,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:40:03,864 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 06:40:03,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 06:40:03,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 06:40:03,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 06:40:04,120 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 20 [2020-10-29 06:40:04,637 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 20 [2020-10-29 06:40:05,160 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 33 [2020-10-29 06:40:05,339 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 06:40:05,339 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 06:40:05,339 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 06:40:05,339 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 06:40:05,339 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:40:05,340 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)|)) [2020-10-29 06:40:05,341 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:40:05,341 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-29 06:40:05,341 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-29 06:40:05,341 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-29 06:40:05,341 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-29 06:40:05,341 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-29 06:40:05,341 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-29 06:40:05,341 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-29 06:40:05,342 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-29 06:40:05,342 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-29 06:40:05,342 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-29 06:40:05,342 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-29 06:40:05,342 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-29 06:40:05,342 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-29 06:40:05,342 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,342 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,342 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,343 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,343 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,343 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,344 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-29 06:40:05,344 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-29 06:40:05,345 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-29 06:40:05,345 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-29 06:40:05,345 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-29 06:40:05,345 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-29 06:40:05,345 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-29 06:40:05,345 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-29 06:40:05,345 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-29 06:40:05,345 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-29 06:40:05,345 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-29 06:40:05,346 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,346 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,346 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,346 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,346 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,346 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-29 06:40:05,346 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-29 06:40:05,346 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-29 06:40:05,346 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-29 06:40:05,347 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-29 06:40:05,347 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-29 06:40:05,347 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-29 06:40:05,347 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-29 06:40:05,347 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-29 06:40:05,348 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-29 06:40:05,348 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-29 06:40:05,348 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-29 06:40:05,348 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-29 06:40:05,348 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-29 06:40:05,348 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,349 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,350 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,350 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,350 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,350 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-29 06:40:05,350 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-29 06:40:05,351 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-29 06:40:05,351 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-29 06:40:05,351 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-29 06:40:05,351 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-29 06:40:05,351 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-29 06:40:05,351 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-29 06:40:05,351 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-29 06:40:05,351 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-29 06:40:05,351 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,352 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,352 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,352 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,352 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,352 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-29 06:40:05,352 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-29 06:40:05,352 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-29 06:40:05,352 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-29 06:40:05,352 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-29 06:40:05,353 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-29 06:40:05,353 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-29 06:40:05,354 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-29 06:40:05,354 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-29 06:40:05,354 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-29 06:40:05,354 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-29 06:40:05,354 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-29 06:40:05,354 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-29 06:40:05,355 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,355 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,355 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,355 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,355 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,355 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-29 06:40:05,355 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-29 06:40:05,355 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-29 06:40:05,355 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-29 06:40:05,356 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-29 06:40:05,357 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,357 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,357 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-29 06:40:05,357 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-29 06:40:05,357 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-29 06:40:05,357 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-29 06:40:05,357 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,357 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,358 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,358 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,358 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,358 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-29 06:40:05,358 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-29 06:40:05,358 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-29 06:40:05,358 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-29 06:40:05,360 INFO L270 CegarLoopResult]: At program point L186(line 186) the Hoare annotation is: (and (not (= 9 |old(~a19~0)|)) (not (<= 3 |old(~a10~0)|)) (not (= 8 |old(~a19~0)|)) (not (<= 0 (+ |old(~a1~0)| 12))) (not (<= |old(~a10~0)| 1))) [2020-10-29 06:40:05,360 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-29 06:40:05,360 INFO L274 CegarLoopResult]: For program point L186-1(line 186) no Hoare annotation was computed. [2020-10-29 06:40:05,360 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-29 06:40:05,360 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-29 06:40:05,360 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-29 06:40:05,360 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-29 06:40:05,360 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-29 06:40:05,361 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-29 06:40:05,361 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-29 06:40:05,361 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,361 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,362 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,362 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,362 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-29 06:40:05,362 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,362 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,362 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-29 06:40:05,362 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-29 06:40:05,362 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-29 06:40:05,362 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-29 06:40:05,362 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-29 06:40:05,363 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-29 06:40:05,363 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-29 06:40:05,363 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-29 06:40:05,363 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-29 06:40:05,363 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-29 06:40:05,363 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-29 06:40:05,363 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-29 06:40:05,363 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-29 06:40:05,363 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,363 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,364 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,364 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,364 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,364 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,364 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-29 06:40:05,364 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 .cse0 (not (<= |old(~a10~0)| 1))) (or .cse0 (not (= 9 |old(~a19~0)|))) (or .cse0 (not (<= 3 |old(~a10~0)|))) (or .cse0 (not (<= 0 (+ |old(~a1~0)| 12)))))) [2020-10-29 06:40:05,364 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-29 06:40:05,364 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-29 06:40:05,364 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-29 06:40:05,365 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-29 06:40:05,365 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-29 06:40:05,365 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-29 06:40:05,365 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-29 06:40:05,365 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-29 06:40:05,365 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-29 06:40:05,365 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-29 06:40:05,365 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-29 06:40:05,365 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-29 06:40:05,365 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-29 06:40:05,366 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,366 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,366 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,366 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,366 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,366 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,366 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-29 06:40:05,366 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-29 06:40:05,366 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-29 06:40:05,366 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-29 06:40:05,367 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-29 06:40:05,367 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-29 06:40:05,367 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-29 06:40:05,367 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-29 06:40:05,367 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-29 06:40:05,367 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-29 06:40:05,367 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-29 06:40:05,367 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-29 06:40:05,367 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-29 06:40:05,367 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,368 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,368 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,368 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,368 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,368 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,368 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-29 06:40:05,368 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-29 06:40:05,368 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-29 06:40:05,368 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-29 06:40:05,368 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-29 06:40:05,369 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-29 06:40:05,369 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-29 06:40:05,369 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-29 06:40:05,369 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-29 06:40:05,369 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-29 06:40:05,369 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-29 06:40:05,369 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-29 06:40:05,369 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,369 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,370 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,370 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,370 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,370 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:40:05,370 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:40:05,370 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 23 ~a1~0) (= ~a10~0 0) (= ~a19~0 9)) [2020-10-29 06:40:05,370 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 06:40:05,370 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:40:05,371 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|))) [2020-10-29 06:40:05,371 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:40:05,371 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (or (= ~a19~0 8) (not (<= 23 |old(~a1~0)|)) (<= 3 ~a10~0) (<= 0 (+ ~a1~0 12)) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (<= ~a10~0 1)) [2020-10-29 06:40:05,371 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-29 06:40:05,371 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-29 06:40:05,371 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (or (= ~a19~0 8) (not (<= 23 |old(~a1~0)|)) (<= 3 ~a10~0) (<= 0 (+ ~a1~0 12)) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (<= ~a10~0 1)) [2020-10-29 06:40:05,371 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:40:05,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 06:40:05 BoogieIcfgContainer [2020-10-29 06:40:05,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 06:40:05,399 INFO L168 Benchmark]: Toolchain (without parser) took 37189.07 ms. Allocated memory was 152.0 MB in the beginning and 704.6 MB in the end (delta: 552.6 MB). Free memory was 125.8 MB in the beginning and 470.3 MB in the end (delta: -344.6 MB). Peak memory consumption was 421.1 MB. Max. memory is 8.0 GB. [2020-10-29 06:40:05,406 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory was 100.4 MB in the beginning and 100.3 MB in the end (delta: 68.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 06:40:05,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 841.01 ms. Allocated memory is still 152.0 MB. Free memory was 125.2 MB in the beginning and 130.3 MB in the end (delta: -5.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 8.0 GB. [2020-10-29 06:40:05,407 INFO L168 Benchmark]: Boogie Preprocessor took 144.14 ms. Allocated memory is still 152.0 MB. Free memory was 130.3 MB in the beginning and 125.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-29 06:40:05,408 INFO L168 Benchmark]: RCFGBuilder took 1480.93 ms. Allocated memory is still 152.0 MB. Free memory was 125.5 MB in the beginning and 119.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 50.8 MB. Max. memory is 8.0 GB. [2020-10-29 06:40:05,409 INFO L168 Benchmark]: TraceAbstraction took 34708.38 ms. Allocated memory was 152.0 MB in the beginning and 704.6 MB in the end (delta: 552.6 MB). Free memory was 118.7 MB in the beginning and 470.3 MB in the end (delta: -351.7 MB). Peak memory consumption was 412.7 MB. Max. memory is 8.0 GB. [2020-10-29 06:40:05,422 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 was 100.4 MB in the beginning and 100.3 MB in the end (delta: 68.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 841.01 ms. Allocated memory is still 152.0 MB. Free memory was 125.2 MB in the beginning and 130.3 MB in the end (delta: -5.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 144.14 ms. Allocated memory is still 152.0 MB. Free memory was 130.3 MB in the beginning and 125.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1480.93 ms. Allocated memory is still 152.0 MB. Free memory was 125.5 MB in the beginning and 119.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 50.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 34708.38 ms. Allocated memory was 152.0 MB in the beginning and 704.6 MB in the end (delta: 552.6 MB). Free memory was 118.7 MB in the beginning and 470.3 MB in the end (delta: -351.7 MB). Peak memory consumption was 412.7 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 || !(23 <= \old(a1))) || 3 <= a10) || 0 <= a1 + 12) || !(9 == \old(a19))) || a19 == 9) || !(0 == \old(a10))) || a10 <= 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 33.1s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 197 SDtfs, 3340 SDslu, 208 SDs, 0 SdLazy, 5937 SolverSat, 916 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2220occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 938 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 165 PreInvPairs, 221 NumberOfFragments, 257 HoareAnnotationTreeSize, 165 FomulaSimplifications, 37890 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2833 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 18.4s InterpolantComputationTime, 1264 NumberOfCodeBlocks, 1264 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1257 ConstructedInterpolants, 0 QuantifiedInterpolants, 562860 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 871/887 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...