/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/Problem02_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:50:11,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:50:11,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:50:11,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:50:11,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:50:11,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:50:11,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:50:11,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:50:11,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:50:11,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:50:11,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:50:11,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:50:11,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:50:11,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:50:11,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:50:11,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:50:11,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:50:11,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:50:11,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:50:11,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:50:11,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:50:11,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:50:11,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:50:11,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:50:11,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:50:11,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:50:11,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:50:11,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:50:11,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:50:11,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:50:11,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:50:11,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:50:11,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:50:11,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:50:11,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:50:11,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:50:11,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:50:11,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:50:11,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:50:11,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:50:11,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:50:11,855 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 04:50:11,916 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:50:11,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:50:11,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:50:11,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:50:11,921 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:50:11,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:50:11,922 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:50:11,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:50:11,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:50:11,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:50:11,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:50:11,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:50:11,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:50:11,927 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:50:11,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:50:11,927 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:50:11,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:50:11,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:50:11,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:50:11,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:50:11,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:50:11,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:50:11,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:50:11,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:50:11,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:50:11,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:50:11,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:50:11,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:50:11,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:50:11,932 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:50:12,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:50:12,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:50:12,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:50:12,469 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:50:12,470 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:50:12,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-10-29 04:50:12,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4361c68ae/390e8eee61db4f688402110e65a8de5f/FLAG05b95045a [2020-10-29 04:50:13,312 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:50:13,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-10-29 04:50:13,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4361c68ae/390e8eee61db4f688402110e65a8de5f/FLAG05b95045a [2020-10-29 04:50:13,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4361c68ae/390e8eee61db4f688402110e65a8de5f [2020-10-29 04:50:13,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:50:13,502 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:50:13,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:50:13,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:50:13,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:50:13,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:50:13" (1/1) ... [2020-10-29 04:50:13,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2675cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:50:13, skipping insertion in model container [2020-10-29 04:50:13,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:50:13" (1/1) ... [2020-10-29 04:50:13,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:50:13,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:50:14,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:50:14,184 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:50:14,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:50:14,343 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:50:14,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:50:14 WrapperNode [2020-10-29 04:50:14,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:50:14,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:50:14,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:50:14,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:50:14,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:50:14" (1/1) ... [2020-10-29 04:50:14,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:50:14" (1/1) ... [2020-10-29 04:50:14,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:50:14" (1/1) ... [2020-10-29 04:50:14,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:50:14" (1/1) ... [2020-10-29 04:50:14,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:50:14" (1/1) ... [2020-10-29 04:50:14,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:50:14" (1/1) ... [2020-10-29 04:50:14,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:50:14" (1/1) ... [2020-10-29 04:50:14,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:50:14,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:50:14,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:50:14,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:50:14,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:50:14" (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 04:50:14,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:50:14,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:50:14,558 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:50:14,558 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 04:50:14,558 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:50:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 04:50:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:50:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:50:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:50:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:50:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:50:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 04:50:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:50:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:50:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:50:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:50:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:50:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:50:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:50:15,974 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:50:15,974 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 04:50:15,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:50:15 BoogieIcfgContainer [2020-10-29 04:50:15,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:50:15,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:50:15,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:50:15,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:50:15,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:50:13" (1/3) ... [2020-10-29 04:50:15,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b103ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:50:15, skipping insertion in model container [2020-10-29 04:50:15,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:50:14" (2/3) ... [2020-10-29 04:50:15,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b103ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:50:15, skipping insertion in model container [2020-10-29 04:50:15,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:50:15" (3/3) ... [2020-10-29 04:50:15,987 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label42.c [2020-10-29 04:50:15,999 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:50:16,006 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:50:16,021 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:50:16,052 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:50:16,053 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:50:16,053 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:50:16,053 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:50:16,053 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:50:16,053 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:50:16,054 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:50:16,054 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:50:16,079 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-29 04:50:16,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-29 04:50:16,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:50:16,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:50:16,093 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:50:16,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:50:16,101 INFO L82 PathProgramCache]: Analyzing trace with hash -661183459, now seen corresponding path program 1 times [2020-10-29 04:50:16,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:50:16,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257794280] [2020-10-29 04:50:16,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:50:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:16,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:16,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:18,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:18,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 04:50:18,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:50:18,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2021 [2020-10-29 04:50:18,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:18,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:50:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:50:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-29 04:50:18,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 04:50:18,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:50:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:18,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:18,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:18,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:50:18,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:18,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 04:50:18,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:18,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:18,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:50:18,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:18,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:50:18,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:18,804 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 04:50:18,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257794280] [2020-10-29 04:50:18,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:50:18,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 04:50:18,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838350372] [2020-10-29 04:50:18,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:50:18,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:50:18,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:50:18,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:50:18,843 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-29 04:50:21,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:50:21,045 INFO L93 Difference]: Finished difference Result 636 states and 1085 transitions. [2020-10-29 04:50:21,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:50:21,047 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2020-10-29 04:50:21,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:50:21,070 INFO L225 Difference]: With dead ends: 636 [2020-10-29 04:50:21,070 INFO L226 Difference]: Without dead ends: 332 [2020-10-29 04:50:21,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:50:21,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-10-29 04:50:21,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 326. [2020-10-29 04:50:21,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-10-29 04:50:21,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 428 transitions. [2020-10-29 04:50:21,171 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 428 transitions. Word has length 107 [2020-10-29 04:50:21,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:50:21,172 INFO L481 AbstractCegarLoop]: Abstraction has 326 states and 428 transitions. [2020-10-29 04:50:21,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:50:21,172 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 428 transitions. [2020-10-29 04:50:21,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 04:50:21,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:50:21,190 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:50:21,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:50:21,191 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:50:21,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:50:21,192 INFO L82 PathProgramCache]: Analyzing trace with hash -2010167650, now seen corresponding path program 1 times [2020-10-29 04:50:21,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:50:21,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [217462234] [2020-10-29 04:50:21,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:50:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:21,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:21,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:21,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:22,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:22,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 04:50:22,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:50:22,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1566 [2020-10-29 04:50:22,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:22,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:22,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:50:22,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 04:50:22,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 04:50:22,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:22,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:50:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:23,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:23,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:23,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:50:23,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:23,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 04:50:23,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:23,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:23,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:50:23,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:23,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:50:23,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:23,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:50:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:23,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:23,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:23,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 04:50:23,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:23,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 04:50:23,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:23,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:50:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 04:50:23,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:23,107 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:50:23,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [217462234] [2020-10-29 04:50:23,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:50:23,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:50:23,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130704904] [2020-10-29 04:50:23,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:50:23,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:50:23,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:50:23,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:50:23,112 INFO L87 Difference]: Start difference. First operand 326 states and 428 transitions. Second operand 5 states. [2020-10-29 04:50:23,354 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 04:50:25,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:50:25,058 INFO L93 Difference]: Finished difference Result 800 states and 1092 transitions. [2020-10-29 04:50:25,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:50:25,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-10-29 04:50:25,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:50:25,070 INFO L225 Difference]: With dead ends: 800 [2020-10-29 04:50:25,071 INFO L226 Difference]: Without dead ends: 480 [2020-10-29 04:50:25,073 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:50:25,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-10-29 04:50:25,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 476. [2020-10-29 04:50:25,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2020-10-29 04:50:25,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 608 transitions. [2020-10-29 04:50:25,128 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 608 transitions. Word has length 116 [2020-10-29 04:50:25,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:50:25,129 INFO L481 AbstractCegarLoop]: Abstraction has 476 states and 608 transitions. [2020-10-29 04:50:25,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:50:25,129 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 608 transitions. [2020-10-29 04:50:25,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-29 04:50:25,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:50:25,133 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:50:25,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:50:25,133 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:50:25,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:50:25,134 INFO L82 PathProgramCache]: Analyzing trace with hash 971246068, now seen corresponding path program 1 times [2020-10-29 04:50:25,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:50:25,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118915838] [2020-10-29 04:50:25,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:50:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:25,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:25,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:26,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:28,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:29,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:30,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:30,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-29 04:50:30,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:50:30,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 04:50:30,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:30,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:30,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:50:30,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-29 04:50:30,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 04:50:30,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 04:50:30,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:50:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:30,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:30,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:30,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:50:30,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:30,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:50:30,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:30,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:30,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:50:30,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:30,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:50:30,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:30,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:50:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:30,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:30,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:30,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 04:50:30,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:30,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 04:50:30,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:30,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:30,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:50:30,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:30,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 04:50:30,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:30,545 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:50:30,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118915838] [2020-10-29 04:50:30,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:50:30,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:50:30,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719296158] [2020-10-29 04:50:30,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:50:30,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:50:30,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:50:30,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:50:30,549 INFO L87 Difference]: Start difference. First operand 476 states and 608 transitions. Second operand 5 states. [2020-10-29 04:50:30,798 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 04:50:32,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:50:32,332 INFO L93 Difference]: Finished difference Result 1389 states and 1813 transitions. [2020-10-29 04:50:32,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:50:32,334 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-10-29 04:50:32,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:50:32,348 INFO L225 Difference]: With dead ends: 1389 [2020-10-29 04:50:32,348 INFO L226 Difference]: Without dead ends: 919 [2020-10-29 04:50:32,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:50:32,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2020-10-29 04:50:32,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 915. [2020-10-29 04:50:32,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2020-10-29 04:50:32,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1110 transitions. [2020-10-29 04:50:32,399 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1110 transitions. Word has length 128 [2020-10-29 04:50:32,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:50:32,399 INFO L481 AbstractCegarLoop]: Abstraction has 915 states and 1110 transitions. [2020-10-29 04:50:32,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:50:32,400 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1110 transitions. [2020-10-29 04:50:32,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-29 04:50:32,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:50:32,404 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:50:32,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:50:32,405 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:50:32,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:50:32,405 INFO L82 PathProgramCache]: Analyzing trace with hash 2005448576, now seen corresponding path program 1 times [2020-10-29 04:50:32,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:50:32,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025219565] [2020-10-29 04:50:32,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:50:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:32,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:32,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:33,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:33,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:33,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:35,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:36,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:36,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:37,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:37,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 04:50:37,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 04:50:37,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 04:50:37,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:37,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:37,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:50:37,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-29 04:50:37,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 04:50:37,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:50:37,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:50:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:37,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:37,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:37,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:50:37,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:37,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:50:37,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:37,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:37,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:50:37,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:37,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:50:37,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:37,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:50:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:37,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:37,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:37,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 04:50:37,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:37,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:50:37,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:37,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:37,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:50:37,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:37,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:50:37,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:37,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 04:50:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:37,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:37,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:37,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-29 04:50:37,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:37,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 04:50:37,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:37,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:37,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:50:37,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:37,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 04:50:37,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:37,703 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-29 04:50:37,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025219565] [2020-10-29 04:50:37,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:50:37,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:50:37,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293456266] [2020-10-29 04:50:37,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:50:37,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:50:37,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:50:37,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:50:37,706 INFO L87 Difference]: Start difference. First operand 915 states and 1110 transitions. Second operand 5 states. [2020-10-29 04:50:39,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:50:39,560 INFO L93 Difference]: Finished difference Result 2714 states and 3363 transitions. [2020-10-29 04:50:39,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:50:39,561 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 136 [2020-10-29 04:50:39,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:50:39,574 INFO L225 Difference]: With dead ends: 2714 [2020-10-29 04:50:39,574 INFO L226 Difference]: Without dead ends: 1805 [2020-10-29 04:50:39,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:50:39,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2020-10-29 04:50:39,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1651. [2020-10-29 04:50:39,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1651 states. [2020-10-29 04:50:39,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2017 transitions. [2020-10-29 04:50:39,650 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2017 transitions. Word has length 136 [2020-10-29 04:50:39,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:50:39,651 INFO L481 AbstractCegarLoop]: Abstraction has 1651 states and 2017 transitions. [2020-10-29 04:50:39,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:50:39,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2017 transitions. [2020-10-29 04:50:39,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-29 04:50:39,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:50:39,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:50:39,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:50:39,659 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:50:39,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:50:39,659 INFO L82 PathProgramCache]: Analyzing trace with hash 169623481, now seen corresponding path program 1 times [2020-10-29 04:50:39,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:50:39,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050921148] [2020-10-29 04:50:39,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:50:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:39,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:39,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:40,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:41,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:41,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-29 04:50:41,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:50:41,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1436 [2020-10-29 04:50:41,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:41,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:41,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 04:50:41,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:50:41,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-29 04:50:41,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:41,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:50:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:41,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:41,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:41,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:50:41,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:41,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 04:50:41,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:41,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:41,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:50:41,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:41,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:50:41,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 04:50:41,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:50:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:41,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:41,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:41,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-29 04:50:41,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:41,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-29 04:50:41,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:41,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:41,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:50:41,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:50:41,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 04:50:41,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 04:50:41,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050921148] [2020-10-29 04:50:41,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:50:41,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:50:41,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280173386] [2020-10-29 04:50:41,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:50:41,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:50:41,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:50:41,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:50:41,519 INFO L87 Difference]: Start difference. First operand 1651 states and 2017 transitions. Second operand 6 states. [2020-10-29 04:50:43,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:50:43,419 INFO L93 Difference]: Finished difference Result 4528 states and 5790 transitions. [2020-10-29 04:50:43,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:50:43,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2020-10-29 04:50:43,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:50:43,440 INFO L225 Difference]: With dead ends: 4528 [2020-10-29 04:50:43,440 INFO L226 Difference]: Without dead ends: 2883 [2020-10-29 04:50:43,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:50:43,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2020-10-29 04:50:43,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 2557. [2020-10-29 04:50:43,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2557 states. [2020-10-29 04:50:43,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 3166 transitions. [2020-10-29 04:50:43,570 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 3166 transitions. Word has length 158 [2020-10-29 04:50:43,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:50:43,571 INFO L481 AbstractCegarLoop]: Abstraction has 2557 states and 3166 transitions. [2020-10-29 04:50:43,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:50:43,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 3166 transitions. [2020-10-29 04:50:43,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-29 04:50:43,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:50:43,582 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:50:43,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:50:43,582 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:50:43,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:50:43,583 INFO L82 PathProgramCache]: Analyzing trace with hash 766879743, now seen corresponding path program 1 times [2020-10-29 04:50:43,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:50:43,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [817078894] [2020-10-29 04:50:43,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:50:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:43,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:43,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:43,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:44,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:44,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:45,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:45,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:47,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:47,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:48,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:48,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-29 04:50:48,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 04:50:48,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 04:50:48,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:48,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:50:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-29 04:50:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 04:50:48,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:48,918 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 04:50:48,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:50:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:48,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:48,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:48,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:50:48,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:48,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 04:50:48,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:48,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:50:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:50:48,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:50:48,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:50:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:48,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:48,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:48,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 04:50:48,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:48,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 04:50:48,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:48,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:48,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:50:48,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:50:48,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:50:48,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 04:50:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:48,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:48,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:48,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 04:50:48,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:48,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:50:49,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:49,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:49,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:50:49,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:49,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:50:49,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:50:49,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 04:50:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:49,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:49,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:49,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 04:50:49,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:49,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 04:50:49,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:49,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:49,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:50:49,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:49,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 04:50:49,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:49,379 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 53 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-29 04:50:49,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [817078894] [2020-10-29 04:50:49,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:50:49,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:50:49,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826684115] [2020-10-29 04:50:49,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:50:49,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:50:49,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:50:49,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:50:49,384 INFO L87 Difference]: Start difference. First operand 2557 states and 3166 transitions. Second operand 5 states. [2020-10-29 04:50:50,086 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-29 04:50:51,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:50:51,151 INFO L93 Difference]: Finished difference Result 5204 states and 6545 transitions. [2020-10-29 04:50:51,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:50:51,152 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-10-29 04:50:51,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:50:51,168 INFO L225 Difference]: With dead ends: 5204 [2020-10-29 04:50:51,168 INFO L226 Difference]: Without dead ends: 2563 [2020-10-29 04:50:51,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:50:51,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2020-10-29 04:50:51,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2557. [2020-10-29 04:50:51,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2557 states. [2020-10-29 04:50:51,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 3158 transitions. [2020-10-29 04:50:51,278 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 3158 transitions. Word has length 168 [2020-10-29 04:50:51,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:50:51,279 INFO L481 AbstractCegarLoop]: Abstraction has 2557 states and 3158 transitions. [2020-10-29 04:50:51,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:50:51,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 3158 transitions. [2020-10-29 04:50:51,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-29 04:50:51,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:50:51,290 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:50:51,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:50:51,290 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:50:51,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:50:51,291 INFO L82 PathProgramCache]: Analyzing trace with hash -277392146, now seen corresponding path program 1 times [2020-10-29 04:50:51,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:50:51,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622952295] [2020-10-29 04:50:51,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:50:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:51,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:51,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:51,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:54,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:54,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:54,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:56,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:56,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-29 04:50:56,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:50:56,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 04:50:56,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:56,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:56,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:50:56,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 04:50:56,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-29 04:50:56,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 04:50:56,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:50:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:56,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:56,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:56,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:50:56,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:56,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:50:56,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:56,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:56,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:50:56,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:56,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:50:56,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:56,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:50:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:56,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:56,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:56,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 04:50:56,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:50:56,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:50:56,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:56,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:56,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:50:56,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:56,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 04:50:56,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:50:56,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 04:50:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:56,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:56,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:56,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:50:56,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-29 04:50:56,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:50:56,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 04:50:56,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:50:56,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:50:56,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:50:56,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:50:56,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 04:50:56,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:50:56,764 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-29 04:50:56,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622952295] [2020-10-29 04:50:56,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:50:56,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:50:56,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733537058] [2020-10-29 04:50:56,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:50:56,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:50:56,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:50:56,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:50:56,767 INFO L87 Difference]: Start difference. First operand 2557 states and 3158 transitions. Second operand 5 states. [2020-10-29 04:50:58,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:50:58,448 INFO L93 Difference]: Finished difference Result 5691 states and 7123 transitions. [2020-10-29 04:50:58,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:50:58,448 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 176 [2020-10-29 04:50:58,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:50:58,468 INFO L225 Difference]: With dead ends: 5691 [2020-10-29 04:50:58,468 INFO L226 Difference]: Without dead ends: 3140 [2020-10-29 04:50:58,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:50:58,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2020-10-29 04:50:58,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 2840. [2020-10-29 04:50:58,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2840 states. [2020-10-29 04:50:58,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 3521 transitions. [2020-10-29 04:50:58,575 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 3521 transitions. Word has length 176 [2020-10-29 04:50:58,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:50:58,576 INFO L481 AbstractCegarLoop]: Abstraction has 2840 states and 3521 transitions. [2020-10-29 04:50:58,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:50:58,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 3521 transitions. [2020-10-29 04:50:58,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-29 04:50:58,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:50:58,587 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:50:58,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 04:50:58,588 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:50:58,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:50:58,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1104820519, now seen corresponding path program 1 times [2020-10-29 04:50:58,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:50:58,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516973956] [2020-10-29 04:50:58,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:50:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:50:58,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:58,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:58,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:58,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:58,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:50:59,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:00,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:01,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:02,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:02,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:03,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:03,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:03,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-29 04:51:03,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-29 04:51:03,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-29 04:51:03,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:03,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:03,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:51:03,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-29 04:51:03,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-29 04:51:03,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:03,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:51:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:03,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:03,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:03,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:51:03,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:03,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:51:03,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:03,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:03,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:51:03,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:03,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:51:03,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:03,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:51:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:03,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:03,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:03,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 04:51:03,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:03,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:51:03,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:03,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:03,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:51:03,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:03,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:51:03,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:03,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 04:51:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:03,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:03,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:03,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 04:51:03,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:03,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:51:03,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:03,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:03,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:51:03,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:03,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:51:03,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:03,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 04:51:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:03,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:03,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:03,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:03,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-29 04:51:03,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:51:03,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-29 04:51:03,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:03,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:03,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:51:03,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:03,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-29 04:51:03,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:04,063 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 90 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-29 04:51:04,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [516973956] [2020-10-29 04:51:04,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:51:04,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:51:04,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018619173] [2020-10-29 04:51:04,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:51:04,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:51:04,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:51:04,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:51:04,066 INFO L87 Difference]: Start difference. First operand 2840 states and 3521 transitions. Second operand 5 states. [2020-10-29 04:51:05,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:51:05,724 INFO L93 Difference]: Finished difference Result 6109 states and 7688 transitions. [2020-10-29 04:51:05,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:51:05,730 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2020-10-29 04:51:05,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:51:05,731 INFO L225 Difference]: With dead ends: 6109 [2020-10-29 04:51:05,731 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 04:51:05,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 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 04:51:05,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 04:51:05,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 04:51:05,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 04:51:05,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 04:51:05,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 204 [2020-10-29 04:51:05,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:51:05,746 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 04:51:05,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:51:05,747 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 04:51:05,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 04:51:05,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 04:51:05,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 04:51:06,346 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 122 [2020-10-29 04:51:06,537 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 122 [2020-10-29 04:51:07,607 WARN L193 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 53 [2020-10-29 04:51:07,803 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 31 [2020-10-29 04:51:07,919 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 31 [2020-10-29 04:51:08,075 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 29 [2020-10-29 04:51:08,079 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 04:51:08,080 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 04:51:08,080 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 04:51:08,080 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 04:51:08,080 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:51:08,080 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|)) [2020-10-29 04:51:08,081 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:51:08,081 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-29 04:51:08,081 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-29 04:51:08,081 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-29 04:51:08,081 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-29 04:51:08,081 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-29 04:51:08,081 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-29 04:51:08,081 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-29 04:51:08,081 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-29 04:51:08,082 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-29 04:51:08,082 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-29 04:51:08,082 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-29 04:51:08,082 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-29 04:51:08,082 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-29 04:51:08,082 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-29 04:51:08,082 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-29 04:51:08,082 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,082 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,082 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,083 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,083 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,083 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-29 04:51:08,083 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-29 04:51:08,083 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-29 04:51:08,083 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-29 04:51:08,083 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-29 04:51:08,083 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-29 04:51:08,083 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-29 04:51:08,083 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-29 04:51:08,084 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-29 04:51:08,084 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-29 04:51:08,084 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-29 04:51:08,084 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-29 04:51:08,084 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-29 04:51:08,084 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,084 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,084 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,084 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,085 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-29 04:51:08,085 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,085 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-29 04:51:08,085 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-29 04:51:08,085 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-29 04:51:08,085 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-29 04:51:08,085 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-29 04:51:08,085 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-29 04:51:08,085 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-29 04:51:08,085 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-29 04:51:08,085 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-29 04:51:08,086 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-29 04:51:08,086 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-29 04:51:08,086 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-29 04:51:08,086 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-29 04:51:08,086 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-29 04:51:08,086 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-29 04:51:08,086 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,086 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,086 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,086 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,087 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,087 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-29 04:51:08,087 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-29 04:51:08,087 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-29 04:51:08,087 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-29 04:51:08,087 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-29 04:51:08,087 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-29 04:51:08,087 INFO L270 CegarLoopResult]: At program point L474(line 474) the Hoare annotation is: (let ((.cse0 (and (not (< 1 |old(~a19~0)|)) (not (<= |old(~a19~0)| 0)))) (.cse1 (not (= 7 |old(~a28~0)|)))) (and (or .cse0 (= |old(~a11~0)| 1)) (not (= |old(~a25~0)| 1)) (or .cse0 .cse1) (or .cse1 (not (= |old(~a11~0)| |old(~a25~0)|))) (not (<= 10 |old(~a28~0)|)) (not (= 9 |old(~a28~0)|)))) [2020-10-29 04:51:08,088 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-29 04:51:08,088 INFO L274 CegarLoopResult]: For program point L474-1(line 474) no Hoare annotation was computed. [2020-10-29 04:51:08,088 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-29 04:51:08,088 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-29 04:51:08,088 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-29 04:51:08,088 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,088 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,088 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,089 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,089 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,089 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-29 04:51:08,089 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-29 04:51:08,089 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-29 04:51:08,089 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-29 04:51:08,089 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-29 04:51:08,089 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-29 04:51:08,089 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-29 04:51:08,090 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-29 04:51:08,090 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-29 04:51:08,090 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-29 04:51:08,090 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-29 04:51:08,090 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-29 04:51:08,090 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-29 04:51:08,090 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,090 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,090 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,090 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,091 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,091 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-29 04:51:08,091 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-29 04:51:08,091 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-29 04:51:08,091 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-29 04:51:08,091 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-29 04:51:08,091 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-29 04:51:08,091 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-29 04:51:08,091 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-29 04:51:08,091 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-29 04:51:08,091 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,092 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,092 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-29 04:51:08,092 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-29 04:51:08,092 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-29 04:51:08,092 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-29 04:51:08,092 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-29 04:51:08,092 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-29 04:51:08,092 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-29 04:51:08,092 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,092 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,093 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,093 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,093 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-29 04:51:08,093 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,093 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-29 04:51:08,093 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,093 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-29 04:51:08,093 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-29 04:51:08,093 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-29 04:51:08,093 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-29 04:51:08,094 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-29 04:51:08,094 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-29 04:51:08,094 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-29 04:51:08,094 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-29 04:51:08,094 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-29 04:51:08,094 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-29 04:51:08,094 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-29 04:51:08,094 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-29 04:51:08,094 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-29 04:51:08,094 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-29 04:51:08,094 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,094 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,095 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,095 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,095 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,095 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,095 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-29 04:51:08,095 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-29 04:51:08,095 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-29 04:51:08,095 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-29 04:51:08,095 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-29 04:51:08,095 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-29 04:51:08,096 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-29 04:51:08,096 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-29 04:51:08,096 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-29 04:51:08,096 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-29 04:51:08,096 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-29 04:51:08,096 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,096 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,096 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,096 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,096 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,097 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,097 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-29 04:51:08,097 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-29 04:51:08,097 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-29 04:51:08,097 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-29 04:51:08,097 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-29 04:51:08,097 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-29 04:51:08,097 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-29 04:51:08,098 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse6 (= ~a28~0 |old(~a28~0)|)) (.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse1 (= ~a25~0 |old(~a25~0)|)) (.cse3 (= ~a19~0 |old(~a19~0)|))) (let ((.cse2 (= 7 ~a28~0)) (.cse4 (not (= 7 |old(~a28~0)|))) (.cse7 (and (not (< 1 |old(~a19~0)|)) (not (<= |old(~a19~0)| 0)))) (.cse8 (and .cse6 .cse0 .cse5 .cse1 .cse3))) (and (or (and (= ~a25~0 ~a11~0) .cse0 .cse1 .cse2 .cse3) .cse4 (not (= |old(~a11~0)| |old(~a25~0)|))) (or (and .cse0 .cse5 .cse1 (= ~a28~0 9) .cse3) (not (= 9 |old(~a28~0)|))) (or (not (= |old(~a25~0)| 1)) (and .cse6 .cse0 .cse5 (= ~a25~0 1) .cse3)) (or .cse7 (and .cse0 .cse5 .cse1 .cse2 .cse3) .cse4) (or .cse8 (not (<= 10 |old(~a28~0)|))) (or .cse7 .cse8 (= |old(~a11~0)| 1))))) [2020-10-29 04:51:08,098 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-29 04:51:08,098 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-29 04:51:08,098 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-29 04:51:08,098 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-29 04:51:08,098 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-29 04:51:08,098 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-29 04:51:08,098 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-29 04:51:08,098 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,099 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,099 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,099 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,099 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,099 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,099 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-29 04:51:08,099 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-29 04:51:08,099 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-29 04:51:08,099 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-29 04:51:08,099 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-29 04:51:08,099 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-29 04:51:08,099 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-29 04:51:08,100 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-29 04:51:08,100 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-29 04:51:08,100 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-29 04:51:08,100 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-29 04:51:08,100 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-29 04:51:08,100 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-29 04:51:08,100 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,100 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,100 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,100 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,100 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,100 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,101 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-29 04:51:08,101 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-29 04:51:08,101 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-29 04:51:08,101 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-29 04:51:08,101 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-29 04:51:08,101 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-29 04:51:08,101 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-29 04:51:08,101 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-29 04:51:08,101 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-29 04:51:08,101 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-29 04:51:08,101 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-29 04:51:08,101 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-29 04:51:08,102 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-29 04:51:08,102 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-29 04:51:08,102 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-29 04:51:08,102 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-29 04:51:08,102 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,102 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,102 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,102 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,102 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-29 04:51:08,102 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-29 04:51:08,102 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-29 04:51:08,102 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-29 04:51:08,102 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-29 04:51:08,103 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:51:08,103 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= 7 ~a28~0) (not (= ~a11~0 1))) [2020-10-29 04:51:08,103 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 04:51:08,103 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:51:08,103 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse0 (or (<= ~a19~0 0) (< 1 ~a19~0))) (.cse1 (= 7 ~a28~0))) (or (<= 10 ~a28~0) (and (not (= ~a11~0 1)) .cse0) (and .cse1 .cse0) (and (= ~a25~0 ~a11~0) .cse1) (= ~a25~0 1) (= |old(~a11~0)| 1) (= ~a28~0 9) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-29 04:51:08,103 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (and (= ~a25~0 ~a11~0) (= ~a17~0 |old(~a17~0)|) (= ~a25~0 |old(~a25~0)|) (= 7 ~a28~0) (= ~a19~0 |old(~a19~0)|)) (= |old(~a11~0)| 1) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-29 04:51:08,103 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-29 04:51:08,103 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-29 04:51:08,104 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse0 (or (<= ~a19~0 0) (< 1 ~a19~0))) (.cse1 (= 7 ~a28~0))) (or (<= 10 ~a28~0) (and (not (= ~a11~0 1)) .cse0) (and .cse1 .cse0) (and (= ~a25~0 ~a11~0) .cse1) (= ~a25~0 1) (= |old(~a11~0)| 1) (= ~a28~0 9) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-29 04:51:08,104 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-29 04:51:08,104 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-29 04:51:08,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:51:08 BoogieIcfgContainer [2020-10-29 04:51:08,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 04:51:08,128 INFO L168 Benchmark]: Toolchain (without parser) took 54631.54 ms. Allocated memory was 151.0 MB in the beginning and 931.1 MB in the end (delta: 780.1 MB). Free memory was 124.6 MB in the beginning and 362.2 MB in the end (delta: -237.6 MB). Peak memory consumption was 543.5 MB. Max. memory is 8.0 GB. [2020-10-29 04:51:08,128 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 123.5 MB in the end (delta: 430.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:51:08,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 837.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 131.1 MB in the end (delta: -7.2 MB). Peak memory consumption was 29.5 MB. Max. memory is 8.0 GB. [2020-10-29 04:51:08,130 INFO L168 Benchmark]: Boogie Preprocessor took 118.63 ms. Allocated memory is still 151.0 MB. Free memory was 131.1 MB in the beginning and 126.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:51:08,131 INFO L168 Benchmark]: RCFGBuilder took 1512.70 ms. Allocated memory was 151.0 MB in the beginning and 206.6 MB in the end (delta: 55.6 MB). Free memory was 126.4 MB in the beginning and 161.0 MB in the end (delta: -34.5 MB). Peak memory consumption was 80.3 MB. Max. memory is 8.0 GB. [2020-10-29 04:51:08,132 INFO L168 Benchmark]: TraceAbstraction took 52146.89 ms. Allocated memory was 206.6 MB in the beginning and 931.1 MB in the end (delta: 724.6 MB). Free memory was 160.4 MB in the beginning and 362.2 MB in the end (delta: -201.7 MB). Peak memory consumption was 522.8 MB. Max. memory is 8.0 GB. [2020-10-29 04:51:08,136 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 123.5 MB in the end (delta: 430.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 837.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 131.1 MB in the end (delta: -7.2 MB). Peak memory consumption was 29.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 118.63 ms. Allocated memory is still 151.0 MB. Free memory was 131.1 MB in the beginning and 126.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1512.70 ms. Allocated memory was 151.0 MB in the beginning and 206.6 MB in the end (delta: 55.6 MB). Free memory was 126.4 MB in the beginning and 161.0 MB in the end (delta: -34.5 MB). Peak memory consumption was 80.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 52146.89 ms. Allocated memory was 206.6 MB in the beginning and 931.1 MB in the end (delta: 724.6 MB). Free memory was 160.4 MB in the beginning and 362.2 MB in the end (delta: -201.7 MB). Peak memory consumption was 522.8 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: 608]: Loop Invariant Derived loop invariant: (((((((10 <= a28 || (!(a11 == 1) && (a19 <= 0 || 1 < a19))) || (7 == a28 && (a19 <= 0 || 1 < a19))) || (a25 == a11 && 7 == a28)) || a25 == 1) || \old(a11) == 1) || a28 == 9) || !(7 == \old(a28))) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 49.6s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 15.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 301 SDtfs, 2316 SDslu, 312 SDs, 0 SdLazy, 5924 SolverSat, 770 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 63 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2840occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 800 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 214 PreInvPairs, 262 NumberOfFragments, 422 HoareAnnotationTreeSize, 214 FomulaSimplifications, 59374 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 9 FomulaSimplificationsInter, 3520 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 32.7s InterpolantComputationTime, 1193 NumberOfCodeBlocks, 1193 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1185 ConstructedInterpolants, 0 QuantifiedInterpolants, 1092921 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 331/388 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...