/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 10:17:19,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 10:17:19,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 10:17:20,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 10:17:20,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 10:17:20,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 10:17:20,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 10:17:20,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 10:17:20,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 10:17:20,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 10:17:20,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 10:17:20,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 10:17:20,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 10:17:20,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 10:17:20,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 10:17:20,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 10:17:20,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 10:17:20,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 10:17:20,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 10:17:20,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 10:17:20,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 10:17:20,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 10:17:20,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 10:17:20,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 10:17:20,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 10:17:20,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 10:17:20,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 10:17:20,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 10:17:20,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 10:17:20,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 10:17:20,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 10:17:20,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 10:17:20,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 10:17:20,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 10:17:20,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 10:17:20,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 10:17:20,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 10:17:20,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 10:17:20,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 10:17:20,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 10:17:20,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 10:17:20,105 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 10:17:20,159 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 10:17:20,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 10:17:20,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 10:17:20,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 10:17:20,165 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 10:17:20,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 10:17:20,166 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 10:17:20,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 10:17:20,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 10:17:20,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 10:17:20,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 10:17:20,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 10:17:20,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 10:17:20,168 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 10:17:20,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 10:17:20,168 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 10:17:20,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 10:17:20,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 10:17:20,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 10:17:20,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 10:17:20,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 10:17:20,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:17:20,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 10:17:20,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 10:17:20,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 10:17:20,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 10:17:20,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 10:17:20,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 10:17:20,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 10:17:20,171 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 10:17:20,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 10:17:20,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 10:17:20,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 10:17:20,647 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 10:17:20,647 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 10:17:20,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label32.c [2020-10-28 10:17:20,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25746755f/8e7f7fed6fe345d7aaeaa6fb8ed544c3/FLAG51a05ae9a [2020-10-28 10:17:21,621 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 10:17:21,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem03_label32.c [2020-10-28 10:17:21,649 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25746755f/8e7f7fed6fe345d7aaeaa6fb8ed544c3/FLAG51a05ae9a [2020-10-28 10:17:21,753 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25746755f/8e7f7fed6fe345d7aaeaa6fb8ed544c3 [2020-10-28 10:17:21,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 10:17:21,764 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 10:17:21,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 10:17:21,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 10:17:21,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 10:17:21,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:17:21" (1/1) ... [2020-10-28 10:17:21,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@254b6398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:17:21, skipping insertion in model container [2020-10-28 10:17:21,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:17:21" (1/1) ... [2020-10-28 10:17:21,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 10:17:21,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 10:17:22,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:17:22,634 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 10:17:22,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:17:22,945 INFO L208 MainTranslator]: Completed translation [2020-10-28 10:17:22,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:17:22 WrapperNode [2020-10-28 10:17:22,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 10:17:22,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 10:17:22,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 10:17:22,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 10:17:22,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:17:22" (1/1) ... [2020-10-28 10:17:22,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:17:22" (1/1) ... [2020-10-28 10:17:23,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:17:22" (1/1) ... [2020-10-28 10:17:23,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:17:22" (1/1) ... [2020-10-28 10:17:23,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:17:22" (1/1) ... [2020-10-28 10:17:23,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:17:22" (1/1) ... [2020-10-28 10:17:23,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:17:22" (1/1) ... [2020-10-28 10:17:23,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 10:17:23,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 10:17:23,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 10:17:23,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 10:17:23,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:17:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:17:23,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 10:17:23,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 10:17:23,254 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 10:17:23,255 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 10:17:23,255 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 10:17:23,255 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 10:17:23,255 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 10:17:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 10:17:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 10:17:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 10:17:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 10:17:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 10:17:23,257 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 10:17:23,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 10:17:23,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 10:17:23,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 10:17:23,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 10:17:23,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 10:17:23,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 10:17:25,337 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 10:17:25,337 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 10:17:25,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:17:25 BoogieIcfgContainer [2020-10-28 10:17:25,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 10:17:25,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 10:17:25,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 10:17:25,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 10:17:25,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:17:21" (1/3) ... [2020-10-28 10:17:25,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30309768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:17:25, skipping insertion in model container [2020-10-28 10:17:25,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:17:22" (2/3) ... [2020-10-28 10:17:25,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30309768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:17:25, skipping insertion in model container [2020-10-28 10:17:25,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:17:25" (3/3) ... [2020-10-28 10:17:25,349 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label32.c [2020-10-28 10:17:25,361 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 10:17:25,367 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 10:17:25,381 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 10:17:25,412 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 10:17:25,412 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 10:17:25,412 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 10:17:25,412 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 10:17:25,412 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 10:17:25,413 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 10:17:25,413 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 10:17:25,413 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 10:17:25,442 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-10-28 10:17:25,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-28 10:17:25,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:17:25,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:17:25,462 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:17:25,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:17:25,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1637693792, now seen corresponding path program 1 times [2020-10-28 10:17:25,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:17:25,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [768652684] [2020-10-28 10:17:25,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:17:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:17:26,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:27,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:29,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:17:29,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-28 10:17:29,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:17:29,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4029 [2020-10-28 10:17:29,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:17:29,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:17:29,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:17:29,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:17:29,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 197 [2020-10-28 10:17:29,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 10:17:30,422 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-28 10:17:30,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:17:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:17:30,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:30,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:17:30,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:17:30,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:17:30,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 10:17:30,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:17:30,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:17:30,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:17:30,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:17:30,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:17:30,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:17:30,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:17:30,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [768652684] [2020-10-28 10:17:30,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 10:17:30,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 10:17:30,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173385370] [2020-10-28 10:17:30,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 10:17:30,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:17:30,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 10:17:30,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 10:17:30,691 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 4 states. [2020-10-28 10:17:30,988 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-28 10:17:34,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:17:34,640 INFO L93 Difference]: Finished difference Result 889 states and 1542 transitions. [2020-10-28 10:17:34,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:17:34,643 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 196 [2020-10-28 10:17:34,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:17:34,663 INFO L225 Difference]: With dead ends: 889 [2020-10-28 10:17:34,663 INFO L226 Difference]: Without dead ends: 481 [2020-10-28 10:17:34,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:17:34,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-28 10:17:34,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 476. [2020-10-28 10:17:34,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2020-10-28 10:17:34,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 729 transitions. [2020-10-28 10:17:34,770 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 729 transitions. Word has length 196 [2020-10-28 10:17:34,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:17:34,771 INFO L481 AbstractCegarLoop]: Abstraction has 476 states and 729 transitions. [2020-10-28 10:17:34,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 10:17:34,772 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 729 transitions. [2020-10-28 10:17:34,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-28 10:17:34,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:17:34,780 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:17:34,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 10:17:34,780 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:17:34,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:17:34,781 INFO L82 PathProgramCache]: Analyzing trace with hash 442196753, now seen corresponding path program 1 times [2020-10-28 10:17:34,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:17:34,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180912127] [2020-10-28 10:17:34,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:17:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:17:34,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:35,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:35,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:37,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:38,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:17:38,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-28 10:17:38,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:17:38,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3965 [2020-10-28 10:17:38,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:17:38,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:17:38,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:17:38,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 10:17:38,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 194 [2020-10-28 10:17:38,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 10:17:39,344 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-28 10:17:39,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:17:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:17:39,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:39,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:17:39,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:17:39,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:17:39,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 10:17:39,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:17:39,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:17:39,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:17:39,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:17:39,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:17:39,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-28 10:17:39,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:17:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:17:39,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:39,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:17:39,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:17:39,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:17:39,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 10:17:39,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:17:39,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:17:39,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:17:39,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:17:39,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 10:17:39,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:17:39,692 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:17:39,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180912127] [2020-10-28 10:17:39,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:17:39,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:17:39,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236917475] [2020-10-28 10:17:39,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:17:39,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:17:39,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:17:39,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:17:39,704 INFO L87 Difference]: Start difference. First operand 476 states and 729 transitions. Second operand 5 states. [2020-10-28 10:17:40,087 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-28 10:17:43,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:17:43,597 INFO L93 Difference]: Finished difference Result 1396 states and 2172 transitions. [2020-10-28 10:17:43,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:17:43,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 205 [2020-10-28 10:17:43,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:17:43,611 INFO L225 Difference]: With dead ends: 1396 [2020-10-28 10:17:43,612 INFO L226 Difference]: Without dead ends: 926 [2020-10-28 10:17:43,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:17:43,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2020-10-28 10:17:43,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 904. [2020-10-28 10:17:43,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2020-10-28 10:17:43,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1372 transitions. [2020-10-28 10:17:43,677 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1372 transitions. Word has length 205 [2020-10-28 10:17:43,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:17:43,681 INFO L481 AbstractCegarLoop]: Abstraction has 904 states and 1372 transitions. [2020-10-28 10:17:43,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:17:43,682 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1372 transitions. [2020-10-28 10:17:43,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-28 10:17:43,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:17:43,689 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:17:43,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 10:17:43,689 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:17:43,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:17:43,690 INFO L82 PathProgramCache]: Analyzing trace with hash -990772161, now seen corresponding path program 1 times [2020-10-28 10:17:43,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:17:43,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356397794] [2020-10-28 10:17:43,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:17:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:17:43,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:44,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:44,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:46,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:17:46,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-28 10:17:46,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:17:46,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2660 [2020-10-28 10:17:46,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:17:46,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:17:46,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:17:46,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 10:17:46,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 194 [2020-10-28 10:17:46,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:17:46,780 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-28 10:17:46,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:17:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:17:46,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:46,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:17:46,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:17:46,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:17:46,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:17:46,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:17:46,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:17:46,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:17:46,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:17:46,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:17:46,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:17:46,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:17:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:17:46,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:46,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:17:46,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 10:17:46,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:17:46,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 10:17:46,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:17:46,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:17:46,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:17:46,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:17:46,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 10:17:46,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:17:47,029 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:17:47,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356397794] [2020-10-28 10:17:47,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:17:47,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:17:47,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811194844] [2020-10-28 10:17:47,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:17:47,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:17:47,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:17:47,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:17:47,033 INFO L87 Difference]: Start difference. First operand 904 states and 1372 transitions. Second operand 5 states. [2020-10-28 10:17:47,401 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-28 10:17:50,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:17:50,811 INFO L93 Difference]: Finished difference Result 2645 states and 4087 transitions. [2020-10-28 10:17:50,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:17:50,812 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2020-10-28 10:17:50,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:17:50,824 INFO L225 Difference]: With dead ends: 2645 [2020-10-28 10:17:50,825 INFO L226 Difference]: Without dead ends: 1747 [2020-10-28 10:17:50,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:17:50,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2020-10-28 10:17:50,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1740. [2020-10-28 10:17:50,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1740 states. [2020-10-28 10:17:50,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 2376 transitions. [2020-10-28 10:17:50,933 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 2376 transitions. Word has length 208 [2020-10-28 10:17:50,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:17:50,934 INFO L481 AbstractCegarLoop]: Abstraction has 1740 states and 2376 transitions. [2020-10-28 10:17:50,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:17:50,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 2376 transitions. [2020-10-28 10:17:50,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-28 10:17:50,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:17:50,944 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:17:50,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 10:17:50,947 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:17:50,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:17:50,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1214229693, now seen corresponding path program 1 times [2020-10-28 10:17:50,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:17:50,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178984387] [2020-10-28 10:17:50,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:17:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:17:51,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:51,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:52,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:53,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:17:53,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-28 10:17:53,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:17:53,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2340 [2020-10-28 10:17:53,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:17:53,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:17:53,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:17:53,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-28 10:17:53,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 194 [2020-10-28 10:17:53,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:17:53,719 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-28 10:17:53,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:17:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:17:53,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:53,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:17:53,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:17:53,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:17:53,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 10:17:53,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:17:53,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:17:53,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:17:53,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:17:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:17:53,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:17:53,890 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 10:17:53,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:17:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:17:53,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:53,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:17:53,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 10:17:53,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:17:53,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 10:17:53,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:17:53,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:17:53,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:17:53,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:17:53,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 10:17:53,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:17:54,060 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:17:54,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178984387] [2020-10-28 10:17:54,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:17:54,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:17:54,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441372640] [2020-10-28 10:17:54,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:17:54,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:17:54,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:17:54,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:17:54,073 INFO L87 Difference]: Start difference. First operand 1740 states and 2376 transitions. Second operand 5 states. [2020-10-28 10:17:54,336 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-28 10:17:57,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:17:57,378 INFO L93 Difference]: Finished difference Result 5162 states and 7217 transitions. [2020-10-28 10:17:57,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:17:57,379 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 215 [2020-10-28 10:17:57,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:17:57,404 INFO L225 Difference]: With dead ends: 5162 [2020-10-28 10:17:57,404 INFO L226 Difference]: Without dead ends: 3428 [2020-10-28 10:17:57,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:17:57,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3428 states. [2020-10-28 10:17:57,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3428 to 3417. [2020-10-28 10:17:57,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3417 states. [2020-10-28 10:17:57,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3417 states to 3417 states and 4596 transitions. [2020-10-28 10:17:57,545 INFO L78 Accepts]: Start accepts. Automaton has 3417 states and 4596 transitions. Word has length 215 [2020-10-28 10:17:57,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:17:57,546 INFO L481 AbstractCegarLoop]: Abstraction has 3417 states and 4596 transitions. [2020-10-28 10:17:57,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:17:57,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3417 states and 4596 transitions. [2020-10-28 10:17:57,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-28 10:17:57,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:17:57,559 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:17:57,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 10:17:57,560 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:17:57,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:17:57,560 INFO L82 PathProgramCache]: Analyzing trace with hash -2029764474, now seen corresponding path program 1 times [2020-10-28 10:17:57,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:17:57,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609628314] [2020-10-28 10:17:57,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:17:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:17:57,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:57,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:59,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:17:59,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:02,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:02,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-28 10:18:02,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:18:02,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 10:18:02,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:02,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:02,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:18:02,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-28 10:18:02,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-28 10:18:02,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:18:03,068 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-28 10:18:03,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:18:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:03,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:03,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:03,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:18:03,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:18:03,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 10:18:03,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:03,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:03,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:18:03,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:18:03,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:18:03,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:18:03,245 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 10:18:03,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:18:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:03,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:03,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:03,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 10:18:03,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:18:03,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 10:18:03,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:03,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:03,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:18:03,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:18:03,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:18:03,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:18:03,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 10:18:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:03,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:03,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:03,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 10:18:03,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:18:03,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 10:18:03,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:03,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:03,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:18:03,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:18:03,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 10:18:03,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:18:03,449 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-28 10:18:03,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609628314] [2020-10-28 10:18:03,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:18:03,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:18:03,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830905086] [2020-10-28 10:18:03,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:18:03,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:18:03,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:18:03,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:18:03,453 INFO L87 Difference]: Start difference. First operand 3417 states and 4596 transitions. Second operand 5 states. [2020-10-28 10:18:03,826 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-28 10:18:07,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:18:07,392 INFO L93 Difference]: Finished difference Result 8507 states and 11897 transitions. [2020-10-28 10:18:07,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:18:07,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 232 [2020-10-28 10:18:07,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:18:07,430 INFO L225 Difference]: With dead ends: 8507 [2020-10-28 10:18:07,430 INFO L226 Difference]: Without dead ends: 5096 [2020-10-28 10:18:07,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:18:07,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5096 states. [2020-10-28 10:18:07,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5096 to 5089. [2020-10-28 10:18:07,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5089 states. [2020-10-28 10:18:07,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 7040 transitions. [2020-10-28 10:18:07,642 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 7040 transitions. Word has length 232 [2020-10-28 10:18:07,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:18:07,643 INFO L481 AbstractCegarLoop]: Abstraction has 5089 states and 7040 transitions. [2020-10-28 10:18:07,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:18:07,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 7040 transitions. [2020-10-28 10:18:07,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-28 10:18:07,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:18:07,661 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:18:07,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 10:18:07,662 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:18:07,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:18:07,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1143803863, now seen corresponding path program 1 times [2020-10-28 10:18:07,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:18:07,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481886047] [2020-10-28 10:18:07,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:18:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:07,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:07,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:08,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:08,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:12,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:12,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-28 10:18:12,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:18:12,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-28 10:18:12,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:12,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:12,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:18:12,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-28 10:18:12,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-28 10:18:12,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:18:13,210 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-28 10:18:13,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:18:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:13,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:13,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:13,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:18:13,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:18:13,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 10:18:13,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:13,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:13,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:18:13,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:18:13,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:18:13,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:18:13,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:18:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:13,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:13,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:13,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 10:18:13,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:18:13,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 10:18:13,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:13,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:13,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:18:13,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:18:13,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:18:13,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:18:13,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 10:18:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:13,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:13,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:13,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 10:18:13,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:18:13,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-28 10:18:13,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:13,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:13,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:18:13,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:18:13,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 10:18:13,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:18:13,962 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-28 10:18:13,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481886047] [2020-10-28 10:18:13,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:18:13,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 10:18:13,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321576008] [2020-10-28 10:18:13,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 10:18:13,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:18:13,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 10:18:13,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:18:13,972 INFO L87 Difference]: Start difference. First operand 5089 states and 7040 transitions. Second operand 6 states. [2020-10-28 10:18:15,092 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-28 10:18:17,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:18:17,769 INFO L93 Difference]: Finished difference Result 10325 states and 14417 transitions. [2020-10-28 10:18:17,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:18:17,770 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 249 [2020-10-28 10:18:17,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:18:17,800 INFO L225 Difference]: With dead ends: 10325 [2020-10-28 10:18:17,800 INFO L226 Difference]: Without dead ends: 5157 [2020-10-28 10:18:17,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:18:17,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5157 states. [2020-10-28 10:18:17,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5157 to 5153. [2020-10-28 10:18:17,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5153 states. [2020-10-28 10:18:17,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 7117 transitions. [2020-10-28 10:18:17,996 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 7117 transitions. Word has length 249 [2020-10-28 10:18:17,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:18:17,997 INFO L481 AbstractCegarLoop]: Abstraction has 5153 states and 7117 transitions. [2020-10-28 10:18:17,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 10:18:17,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 7117 transitions. [2020-10-28 10:18:18,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-28 10:18:18,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:18:18,018 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:18:18,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 10:18:18,019 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:18:18,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:18:18,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1610365039, now seen corresponding path program 1 times [2020-10-28 10:18:18,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:18:18,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198611538] [2020-10-28 10:18:18,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:18:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:18,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:18,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:19,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:22,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:23,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:23,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-28 10:18:23,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:18:23,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-28 10:18:23,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:23,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:23,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:18:23,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-28 10:18:23,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-28 10:18:23,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:18:23,805 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-28 10:18:23,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:18:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:23,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:23,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:23,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:18:23,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:18:23,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:18:23,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:23,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:18:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:18:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:18:23,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:18:23,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:18:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:23,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:23,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:23,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 10:18:23,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:18:23,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 10:18:23,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:23,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:23,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:18:23,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:18:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:18:23,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 10:18:23,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 10:18:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:24,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:24,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:24,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 10:18:24,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:18:24,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-28 10:18:24,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:24,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:18:24,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:18:24,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-28 10:18:24,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:18:24,740 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-28 10:18:24,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198611538] [2020-10-28 10:18:24,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:18:24,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:18:24,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757580769] [2020-10-28 10:18:24,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:18:24,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:18:24,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:18:24,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:18:24,745 INFO L87 Difference]: Start difference. First operand 5153 states and 7117 transitions. Second operand 5 states. [2020-10-28 10:18:26,814 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-28 10:18:28,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:18:28,387 INFO L93 Difference]: Finished difference Result 10457 states and 14569 transitions. [2020-10-28 10:18:28,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:18:28,388 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 326 [2020-10-28 10:18:28,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:18:28,420 INFO L225 Difference]: With dead ends: 10457 [2020-10-28 10:18:28,420 INFO L226 Difference]: Without dead ends: 5212 [2020-10-28 10:18:28,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:18:28,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5212 states. [2020-10-28 10:18:28,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5212 to 5208. [2020-10-28 10:18:28,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5208 states. [2020-10-28 10:18:28,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 5208 states and 7175 transitions. [2020-10-28 10:18:28,612 INFO L78 Accepts]: Start accepts. Automaton has 5208 states and 7175 transitions. Word has length 326 [2020-10-28 10:18:28,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:18:28,613 INFO L481 AbstractCegarLoop]: Abstraction has 5208 states and 7175 transitions. [2020-10-28 10:18:28,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:18:28,613 INFO L276 IsEmpty]: Start isEmpty. Operand 5208 states and 7175 transitions. [2020-10-28 10:18:28,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-10-28 10:18:28,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:18:28,635 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:18:28,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 10:18:28,636 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:18:28,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:18:28,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1688349855, now seen corresponding path program 1 times [2020-10-28 10:18:28,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:18:28,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886154860] [2020-10-28 10:18:28,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:18:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:28,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:28,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:29,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:29,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:33,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:33,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-10-28 10:18:33,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:18:33,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 10:18:33,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:33,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:18:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-28 10:18:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 10:18:33,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:18:34,034 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-28 10:18:34,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:18:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:34,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:34,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:34,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:18:34,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:18:34,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 10:18:34,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:34,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:34,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:18:34,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:18:34,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:18:34,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:18:34,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:18:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:34,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:34,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:34,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 10:18:34,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:18:34,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 10:18:34,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:34,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:34,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:18:34,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:18:34,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 10:18:34,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:18:34,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 10:18:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:34,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:34,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:34,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:34,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 10:18:34,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:18:34,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-28 10:18:34,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:34,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:34,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:18:34,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:18:34,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 10:18:34,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:18:34,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 10:18:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:18:34,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:18:34,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:18:34,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-28 10:18:34,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:18:34,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-28 10:18:34,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:18:34,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:18:34,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:18:34,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:18:34,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-28 10:18:34,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:18:34,857 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 166 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-28 10:18:34,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886154860] [2020-10-28 10:18:34,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:18:34,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:18:34,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360153357] [2020-10-28 10:18:34,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:18:34,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:18:34,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:18:34,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:18:34,860 INFO L87 Difference]: Start difference. First operand 5208 states and 7175 transitions. Second operand 7 states. [2020-10-28 10:18:35,116 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-28 10:18:37,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:18:37,231 INFO L93 Difference]: Finished difference Result 10175 states and 14064 transitions. [2020-10-28 10:18:37,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 10:18:37,237 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 335 [2020-10-28 10:18:37,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:18:37,238 INFO L225 Difference]: With dead ends: 10175 [2020-10-28 10:18:37,238 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 10:18:37,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-28 10:18:37,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 10:18:37,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 10:18:37,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 10:18:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 10:18:37,265 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 335 [2020-10-28 10:18:37,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:18:37,265 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 10:18:37,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:18:37,266 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 10:18:37,266 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 10:18:37,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 10:18:37,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 10:18:38,161 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 48 [2020-10-28 10:18:38,359 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 48 [2020-10-28 10:18:38,744 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 96 [2020-10-28 10:18:41,711 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 265 DAG size of output: 135 [2020-10-28 10:18:41,867 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-10-28 10:18:42,083 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-28 10:18:42,238 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-10-28 10:18:42,496 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 49 [2020-10-28 10:18:42,500 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 10:18:42,501 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 10:18:42,501 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 10:18:42,501 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 10:18:42,501 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 10:18:42,502 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)|) (= |old(#valid)| |#valid|) (= ~a0~0 |old(~a0~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a5~0 |old(~a5~0)|) (= ~e~0 |old(~e~0)|) (= ~a2~0 |old(~a2~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~a14~0 |old(~a14~0)|) (= ~c~0 |old(~c~0)|) (= ~a23~0 |old(~a23~0)|) (= ~z~0 |old(~z~0)|) (= ~a15~0 |old(~a15~0)|) (= ~x~0 |old(~x~0)|) (= ~a22~0 |old(~a22~0)|) (= ~d~0 |old(~d~0)|) (= ~a10~0 |old(~a10~0)|) (= ~a27~0 |old(~a27~0)|) (= ~a26~0 |old(~a26~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a18~0 |old(~a18~0)|) (= ~a6~0 |old(~a6~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a29~0 |old(~a29~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a3~0 |old(~a3~0)|) (= ~a9~0 |old(~a9~0)|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a13~0 |old(~a13~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-28 10:18:42,502 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 10:18:42,502 INFO L274 CegarLoopResult]: For program point L1621-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,502 INFO L274 CegarLoopResult]: For program point L1555-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,502 INFO L274 CegarLoopResult]: For program point L1489-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,502 INFO L274 CegarLoopResult]: For program point L763(lines 763 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,502 INFO L274 CegarLoopResult]: For program point L1622(line 1622) no Hoare annotation was computed. [2020-10-28 10:18:42,502 INFO L274 CegarLoopResult]: For program point L1556(line 1556) no Hoare annotation was computed. [2020-10-28 10:18:42,503 INFO L274 CegarLoopResult]: For program point L499(lines 499 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,503 INFO L274 CegarLoopResult]: For program point L1490(line 1490) no Hoare annotation was computed. [2020-10-28 10:18:42,503 INFO L274 CegarLoopResult]: For program point L235(lines 235 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,503 INFO L274 CegarLoopResult]: For program point L500(lines 500 513) no Hoare annotation was computed. [2020-10-28 10:18:42,503 INFO L274 CegarLoopResult]: For program point L500-2(lines 500 513) no Hoare annotation was computed. [2020-10-28 10:18:42,503 INFO L274 CegarLoopResult]: For program point L1425(lines 1425 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,503 INFO L274 CegarLoopResult]: For program point L368(lines 368 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,503 INFO L274 CegarLoopResult]: For program point L1624-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,503 INFO L274 CegarLoopResult]: For program point L1558-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,504 INFO L274 CegarLoopResult]: For program point L1492-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,504 INFO L274 CegarLoopResult]: For program point L303(lines 303 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,504 INFO L274 CegarLoopResult]: For program point L1228(lines 1228 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,504 INFO L274 CegarLoopResult]: For program point L1625(line 1625) no Hoare annotation was computed. [2020-10-28 10:18:42,504 INFO L274 CegarLoopResult]: For program point L568(lines 568 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,504 INFO L274 CegarLoopResult]: For program point L1559(line 1559) no Hoare annotation was computed. [2020-10-28 10:18:42,504 INFO L274 CegarLoopResult]: For program point L1493(line 1493) no Hoare annotation was computed. [2020-10-28 10:18:42,504 INFO L274 CegarLoopResult]: For program point L436(lines 436 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,504 INFO L274 CegarLoopResult]: For program point L1361(lines 1361 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,505 INFO L274 CegarLoopResult]: For program point L1097(lines 1097 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,505 INFO L274 CegarLoopResult]: For program point L635(lines 635 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,505 INFO L274 CegarLoopResult]: For program point L1362(lines 1362 1381) no Hoare annotation was computed. [2020-10-28 10:18:42,505 INFO L274 CegarLoopResult]: For program point L1362-2(lines 1362 1381) no Hoare annotation was computed. [2020-10-28 10:18:42,505 INFO L274 CegarLoopResult]: For program point L1164(lines 1164 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,505 INFO L274 CegarLoopResult]: For program point L107(lines 107 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,505 INFO L274 CegarLoopResult]: For program point L1627-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,505 INFO L274 CegarLoopResult]: For program point L1561-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,506 INFO L274 CegarLoopResult]: For program point L1495-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,506 INFO L274 CegarLoopResult]: For program point L240(lines 240 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,506 INFO L274 CegarLoopResult]: For program point L174(lines 174 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,506 INFO L274 CegarLoopResult]: For program point L1033(lines 1033 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,506 INFO L274 CegarLoopResult]: For program point L901(lines 901 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,506 INFO L274 CegarLoopResult]: For program point L703(lines 703 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,506 INFO L274 CegarLoopResult]: For program point L1628(line 1628) no Hoare annotation was computed. [2020-10-28 10:18:42,506 INFO L274 CegarLoopResult]: For program point L1562(line 1562) no Hoare annotation was computed. [2020-10-28 10:18:42,506 INFO L274 CegarLoopResult]: For program point L1496(line 1496) no Hoare annotation was computed. [2020-10-28 10:18:42,507 INFO L274 CegarLoopResult]: For program point L968(lines 968 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,507 INFO L274 CegarLoopResult]: For program point L771(lines 771 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,507 INFO L274 CegarLoopResult]: For program point L1630-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,507 INFO L274 CegarLoopResult]: For program point L1564-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,507 INFO L274 CegarLoopResult]: For program point L1498-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,507 INFO L274 CegarLoopResult]: For program point L838(lines 838 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,507 INFO L274 CegarLoopResult]: For program point L1631(line 1631) no Hoare annotation was computed. [2020-10-28 10:18:42,507 INFO L274 CegarLoopResult]: For program point L1565(line 1565) no Hoare annotation was computed. [2020-10-28 10:18:42,508 INFO L274 CegarLoopResult]: For program point L1499(line 1499) no Hoare annotation was computed. [2020-10-28 10:18:42,508 INFO L274 CegarLoopResult]: For program point L443(lines 443 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,508 INFO L274 CegarLoopResult]: For program point L1434(lines 1434 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,508 INFO L274 CegarLoopResult]: For program point L576(lines 576 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,508 INFO L274 CegarLoopResult]: For program point L1633-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,508 INFO L274 CegarLoopResult]: For program point L1567-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,508 INFO L274 CegarLoopResult]: For program point L1501-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,508 INFO L274 CegarLoopResult]: For program point L1634(line 1634) no Hoare annotation was computed. [2020-10-28 10:18:42,509 INFO L274 CegarLoopResult]: For program point L1568(line 1568) no Hoare annotation was computed. [2020-10-28 10:18:42,509 INFO L274 CegarLoopResult]: For program point L1502(line 1502) no Hoare annotation was computed. [2020-10-28 10:18:42,509 INFO L274 CegarLoopResult]: For program point L379(lines 379 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,509 INFO L274 CegarLoopResult]: For program point L1106(lines 1106 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,509 INFO L274 CegarLoopResult]: For program point L1040(lines 1040 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,509 INFO L274 CegarLoopResult]: For program point L380(lines 380 397) no Hoare annotation was computed. [2020-10-28 10:18:42,509 INFO L274 CegarLoopResult]: For program point L314(lines 314 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,509 INFO L274 CegarLoopResult]: For program point L380-2(lines 380 397) no Hoare annotation was computed. [2020-10-28 10:18:42,509 INFO L274 CegarLoopResult]: For program point L1239(lines 1239 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,510 INFO L274 CegarLoopResult]: For program point L116(lines 116 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,510 INFO L274 CegarLoopResult]: For program point L1041(lines 1041 1061) no Hoare annotation was computed. [2020-10-28 10:18:42,510 INFO L274 CegarLoopResult]: For program point L1041-2(lines 1041 1061) no Hoare annotation was computed. [2020-10-28 10:18:42,510 INFO L274 CegarLoopResult]: For program point L909(lines 909 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,510 INFO L274 CegarLoopResult]: For program point L711(lines 711 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,510 INFO L274 CegarLoopResult]: For program point L645(lines 645 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,510 INFO L274 CegarLoopResult]: For program point L1636-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,510 INFO L274 CegarLoopResult]: For program point L1570-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,510 INFO L274 CegarLoopResult]: For program point L1504-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,510 INFO L274 CegarLoopResult]: For program point L183(lines 183 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,511 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,511 INFO L274 CegarLoopResult]: For program point L712(lines 712 733) no Hoare annotation was computed. [2020-10-28 10:18:42,511 INFO L274 CegarLoopResult]: For program point L712-2(lines 712 733) no Hoare annotation was computed. [2020-10-28 10:18:42,511 INFO L274 CegarLoopResult]: For program point L1637(line 1637) no Hoare annotation was computed. [2020-10-28 10:18:42,511 INFO L274 CegarLoopResult]: For program point L1571(line 1571) no Hoare annotation was computed. [2020-10-28 10:18:42,511 INFO L274 CegarLoopResult]: For program point L1505(line 1505) no Hoare annotation was computed. [2020-10-28 10:18:42,511 INFO L274 CegarLoopResult]: For program point L1307(lines 1307 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,511 INFO L274 CegarLoopResult]: For program point L250(lines 250 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,511 INFO L274 CegarLoopResult]: For program point L1175(lines 1175 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,512 INFO L274 CegarLoopResult]: For program point L977(lines 977 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,512 INFO L274 CegarLoopResult]: For program point L779(lines 779 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,512 INFO L274 CegarLoopResult]: For program point L515(lines 515 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,512 INFO L274 CegarLoopResult]: For program point L846(lines 846 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,512 INFO L274 CegarLoopResult]: For program point L1639-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,512 INFO L274 CegarLoopResult]: For program point L1573-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,512 INFO L274 CegarLoopResult]: For program point L1507-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,512 INFO L274 CegarLoopResult]: For program point L1640(line 1640) no Hoare annotation was computed. [2020-10-28 10:18:42,512 INFO L274 CegarLoopResult]: For program point L1574(line 1574) no Hoare annotation was computed. [2020-10-28 10:18:42,512 INFO L274 CegarLoopResult]: For program point L1508(line 1508) no Hoare annotation was computed. [2020-10-28 10:18:42,513 INFO L274 CegarLoopResult]: For program point L452(lines 452 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,513 INFO L274 CegarLoopResult]: For program point L585(lines 585 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,513 INFO L274 CegarLoopResult]: For program point L1642-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,513 INFO L274 CegarLoopResult]: For program point L1576-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,513 INFO L274 CegarLoopResult]: For program point L1510-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,513 INFO L274 CegarLoopResult]: For program point L1444(lines 1444 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,513 INFO L274 CegarLoopResult]: For program point L321(lines 321 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,513 INFO L274 CegarLoopResult]: For program point L1114(lines 1114 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,513 INFO L274 CegarLoopResult]: For program point L57(lines 57 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,514 INFO L274 CegarLoopResult]: For program point L1643(line 1643) no Hoare annotation was computed. [2020-10-28 10:18:42,514 INFO L274 CegarLoopResult]: For program point L1577(line 1577) no Hoare annotation was computed. [2020-10-28 10:18:42,514 INFO L274 CegarLoopResult]: For program point L1511(line 1511) no Hoare annotation was computed. [2020-10-28 10:18:42,514 INFO L274 CegarLoopResult]: For program point L58(lines 58 73) no Hoare annotation was computed. [2020-10-28 10:18:42,514 INFO L274 CegarLoopResult]: For program point L58-2(lines 58 73) no Hoare annotation was computed. [2020-10-28 10:18:42,514 INFO L274 CegarLoopResult]: For program point L786(lines 786 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,514 INFO L274 CegarLoopResult]: For program point L1645-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,514 INFO L274 CegarLoopResult]: For program point L1579-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,515 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 56 1652) the Hoare annotation is: (let ((.cse0 (= ~a28~0 |old(~a28~0)|)) (.cse1 (= ~a26~0 |old(~a26~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a6~0 |old(~a6~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|)) (.cse5 (= ~a29~0 |old(~a29~0)|)) (.cse6 (= ~a1~0 |old(~a1~0)|)) (.cse7 (= ~a19~0 |old(~a19~0)|)) (.cse8 (= ~a0~0 |old(~a0~0)|)) (.cse9 (= ~a3~0 |old(~a3~0)|)) (.cse10 (= ~a9~0 |old(~a9~0)|)) (.cse11 (= ~a7~0 |old(~a7~0)|)) (.cse12 (= ~a11~0 |old(~a11~0)|)) (.cse13 (= ~a5~0 |old(~a5~0)|)) (.cse14 (= ~a16~0 |old(~a16~0)|)) (.cse15 (= ~a4~0 |old(~a4~0)|)) (.cse16 (= ~a2~0 |old(~a2~0)|)) (.cse17 (= ~a17~0 |old(~a17~0)|)) (.cse18 (= ~a14~0 |old(~a14~0)|)) (.cse19 (= ~a25~0 |old(~a25~0)|)) (.cse20 (= ~a23~0 |old(~a23~0)|)) (.cse21 (= ~a12~0 |old(~a12~0)|)) (.cse22 (= ~a15~0 |old(~a15~0)|)) (.cse23 (= ~a13~0 |old(~a13~0)|)) (.cse24 (= ~a24~0 |old(~a24~0)|)) (.cse25 (= ~a20~0 |old(~a20~0)|)) (.cse26 (= ~a22~0 |old(~a22~0)|)) (.cse27 (= ~a10~0 |old(~a10~0)|))) (let ((.cse28 (not (= |old(~a5~0)| 1))) (.cse29 (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 (= ~a27~0 |old(~a27~0)|)))) (and (or (not (<= |old(~a11~0)| 1)) (not (<= 1 |old(~a27~0)|)) (not (<= |old(~a5~0)| 1)) (not (<= 1 |old(~a3~0)|)) (not (<= 1 |old(~a11~0)|)) (not (<= |old(~a26~0)| 1)) (not (<= 1 |old(~a5~0)|)) (not (= ~a18~0 1)) (not (<= |old(~a6~0)| 1)) (not (<= |old(~a27~0)| 1)) (and .cse0 .cse1 .cse2 (<= 1 ~a27~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 (<= ~a27~0 1)) (not (<= 1 |old(~a26~0)|))) (or .cse28 .cse29 (not (= 0 |old(~a11~0)|))) (or .cse28 .cse29 (not (<= 2 |old(~a3~0)|))) (or .cse28 .cse29 (not (<= |old(~a27~0)| 0))) (or (= |old(~a12~0)| 1) .cse28 .cse29) (or .cse28 .cse29 (not (= |old(~a3~0)| 0)))))) [2020-10-28 10:18:42,515 INFO L274 CegarLoopResult]: For program point L1513-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,515 INFO L274 CegarLoopResult]: For program point L1315(lines 1315 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,515 INFO L274 CegarLoopResult]: For program point L985(lines 985 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,515 INFO L274 CegarLoopResult]: For program point L919(lines 919 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,516 INFO L274 CegarLoopResult]: For program point L655(lines 655 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,516 INFO L274 CegarLoopResult]: For program point L1646(line 1646) no Hoare annotation was computed. [2020-10-28 10:18:42,516 INFO L274 CegarLoopResult]: For program point L1580(line 1580) no Hoare annotation was computed. [2020-10-28 10:18:42,516 INFO L274 CegarLoopResult]: For program point L1514(line 1514) no Hoare annotation was computed. [2020-10-28 10:18:42,516 INFO L274 CegarLoopResult]: For program point L259(lines 259 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,516 INFO L274 CegarLoopResult]: For program point L193(lines 193 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,516 INFO L274 CegarLoopResult]: For program point L1184(lines 1184 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,516 INFO L274 CegarLoopResult]: For program point L920(lines 920 937) no Hoare annotation was computed. [2020-10-28 10:18:42,516 INFO L274 CegarLoopResult]: For program point L920-2(lines 920 937) no Hoare annotation was computed. [2020-10-28 10:18:42,516 INFO L274 CegarLoopResult]: For program point L524(lines 524 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,517 INFO L274 CegarLoopResult]: For program point L1383(lines 1383 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,517 INFO L274 CegarLoopResult]: For program point L1251(lines 1251 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,517 INFO L274 CegarLoopResult]: For program point L194(lines 194 213) no Hoare annotation was computed. [2020-10-28 10:18:42,517 INFO L274 CegarLoopResult]: For program point L128(lines 128 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,517 INFO L274 CegarLoopResult]: For program point L194-2(lines 194 213) no Hoare annotation was computed. [2020-10-28 10:18:42,517 INFO L274 CegarLoopResult]: For program point L855(lines 855 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,517 INFO L274 CegarLoopResult]: For program point L1648-1(lines 1648 1650) no Hoare annotation was computed. [2020-10-28 10:18:42,517 INFO L274 CegarLoopResult]: For program point L1582-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,517 INFO L274 CegarLoopResult]: For program point L1516-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,518 INFO L274 CegarLoopResult]: For program point L1384(lines 1384 1402) no Hoare annotation was computed. [2020-10-28 10:18:42,518 INFO L274 CegarLoopResult]: For program point L1384-2(lines 1384 1402) no Hoare annotation was computed. [2020-10-28 10:18:42,518 INFO L274 CegarLoopResult]: For program point L1252(lines 1252 1274) no Hoare annotation was computed. [2020-10-28 10:18:42,518 INFO L274 CegarLoopResult]: For program point L1252-2(lines 1252 1274) no Hoare annotation was computed. [2020-10-28 10:18:42,518 INFO L274 CegarLoopResult]: For program point L1649(line 1649) no Hoare annotation was computed. [2020-10-28 10:18:42,518 INFO L274 CegarLoopResult]: For program point L1583(line 1583) no Hoare annotation was computed. [2020-10-28 10:18:42,518 INFO L274 CegarLoopResult]: For program point L1517(line 1517) no Hoare annotation was computed. [2020-10-28 10:18:42,518 INFO L274 CegarLoopResult]: For program point L460(lines 460 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,518 INFO L274 CegarLoopResult]: For program point L1122(lines 1122 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,518 INFO L274 CegarLoopResult]: For program point L660(lines 660 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,519 INFO L274 CegarLoopResult]: For program point L594(lines 594 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,519 INFO L274 CegarLoopResult]: For program point L1585-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,519 INFO L274 CegarLoopResult]: For program point L1519-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,519 INFO L274 CegarLoopResult]: For program point L1586(line 1586) no Hoare annotation was computed. [2020-10-28 10:18:42,519 INFO L274 CegarLoopResult]: For program point L1520(line 1520) no Hoare annotation was computed. [2020-10-28 10:18:42,519 INFO L274 CegarLoopResult]: For program point L1454(lines 1454 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,519 INFO L274 CegarLoopResult]: For program point L331(lines 331 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,519 INFO L274 CegarLoopResult]: For program point L1323(lines 1323 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,519 INFO L274 CegarLoopResult]: For program point L531(lines 531 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,519 INFO L274 CegarLoopResult]: For program point L1588-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,520 INFO L274 CegarLoopResult]: For program point L1522-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,520 INFO L274 CegarLoopResult]: For program point L399(lines 399 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,520 INFO L274 CegarLoopResult]: For program point L267(lines 267 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,520 INFO L274 CegarLoopResult]: For program point L1192(lines 1192 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,520 INFO L274 CegarLoopResult]: For program point L1589(line 1589) no Hoare annotation was computed. [2020-10-28 10:18:42,520 INFO L274 CegarLoopResult]: For program point L1523(line 1523) no Hoare annotation was computed. [2020-10-28 10:18:42,520 INFO L274 CegarLoopResult]: For program point L797(lines 797 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,520 INFO L274 CegarLoopResult]: For program point L137(lines 137 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,520 INFO L274 CegarLoopResult]: For program point L996(lines 996 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,520 INFO L274 CegarLoopResult]: For program point L1591-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,521 INFO L274 CegarLoopResult]: For program point L1525-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,521 INFO L274 CegarLoopResult]: For program point L1129(lines 1129 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,521 INFO L274 CegarLoopResult]: For program point L1063(lines 1063 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,521 INFO L274 CegarLoopResult]: For program point L865(lines 865 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,521 INFO L274 CegarLoopResult]: For program point L667(lines 667 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,521 INFO L274 CegarLoopResult]: For program point L1592(line 1592) no Hoare annotation was computed. [2020-10-28 10:18:42,521 INFO L274 CegarLoopResult]: For program point L1526(line 1526) no Hoare annotation was computed. [2020-10-28 10:18:42,521 INFO L274 CegarLoopResult]: For program point L469(lines 469 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,521 INFO L274 CegarLoopResult]: For program point L1328(lines 1328 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,521 INFO L274 CegarLoopResult]: For program point L470(lines 470 480) no Hoare annotation was computed. [2020-10-28 10:18:42,522 INFO L274 CegarLoopResult]: For program point L470-2(lines 470 480) no Hoare annotation was computed. [2020-10-28 10:18:42,522 INFO L274 CegarLoopResult]: For program point L735(lines 735 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,522 INFO L274 CegarLoopResult]: For program point L1594-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,522 INFO L274 CegarLoopResult]: For program point L1528-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,522 INFO L274 CegarLoopResult]: For program point L1462(lines 1462 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,522 INFO L274 CegarLoopResult]: For program point L75(lines 75 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,522 INFO L274 CegarLoopResult]: For program point L1595(line 1595) no Hoare annotation was computed. [2020-10-28 10:18:42,522 INFO L274 CegarLoopResult]: For program point L1529(line 1529) no Hoare annotation was computed. [2020-10-28 10:18:42,522 INFO L274 CegarLoopResult]: For program point L605(lines 605 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,522 INFO L274 CegarLoopResult]: For program point L407(lines 407 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,522 INFO L274 CegarLoopResult]: For program point L341(lines 341 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,523 INFO L274 CegarLoopResult]: For program point L1134(lines 1134 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,523 INFO L274 CegarLoopResult]: For program point L1068(lines 1068 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,523 INFO L274 CegarLoopResult]: For program point L870(lines 870 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,523 INFO L274 CegarLoopResult]: For program point L1597-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,523 INFO L274 CegarLoopResult]: For program point L1531-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,523 INFO L274 CegarLoopResult]: For program point L871(lines 871 889) no Hoare annotation was computed. [2020-10-28 10:18:42,523 INFO L274 CegarLoopResult]: For program point L871-2(lines 871 889) no Hoare annotation was computed. [2020-10-28 10:18:42,523 INFO L274 CegarLoopResult]: For program point L1598(line 1598) no Hoare annotation was computed. [2020-10-28 10:18:42,523 INFO L274 CegarLoopResult]: For program point L541(lines 541 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,523 INFO L274 CegarLoopResult]: For program point L1532(line 1532) no Hoare annotation was computed. [2020-10-28 10:18:42,523 INFO L274 CegarLoopResult]: For program point L1202(lines 1202 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,523 INFO L274 CegarLoopResult]: For program point L806(lines 806 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,524 INFO L274 CegarLoopResult]: For program point L278(lines 278 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,524 INFO L274 CegarLoopResult]: For program point L1005(lines 1005 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,524 INFO L274 CegarLoopResult]: For program point L939(lines 939 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,524 INFO L274 CegarLoopResult]: For program point L1600-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,524 INFO L274 CegarLoopResult]: For program point L1534-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,524 INFO L274 CegarLoopResult]: For program point L1468(lines 1468 1470) no Hoare annotation was computed. [2020-10-28 10:18:42,524 INFO L274 CegarLoopResult]: For program point L1468-2(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,524 INFO L274 CegarLoopResult]: For program point L1601(line 1601) no Hoare annotation was computed. [2020-10-28 10:18:42,524 INFO L274 CegarLoopResult]: For program point L1535(line 1535) no Hoare annotation was computed. [2020-10-28 10:18:42,524 INFO L274 CegarLoopResult]: For program point L1469(line 1469) no Hoare annotation was computed. [2020-10-28 10:18:42,524 INFO L274 CegarLoopResult]: For program point L148(lines 148 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,525 INFO L274 CegarLoopResult]: For program point L677(lines 677 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,525 INFO L274 CegarLoopResult]: For program point L1404(lines 1404 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,525 INFO L274 CegarLoopResult]: For program point L1338(lines 1338 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,525 INFO L274 CegarLoopResult]: For program point L215(lines 215 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,525 INFO L274 CegarLoopResult]: For program point L1603-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,525 INFO L274 CegarLoopResult]: For program point L1537-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,525 INFO L274 CegarLoopResult]: For program point L1471-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,525 INFO L274 CegarLoopResult]: For program point L1405(lines 1405 1423) no Hoare annotation was computed. [2020-10-28 10:18:42,525 INFO L274 CegarLoopResult]: For program point L1405-2(lines 1405 1423) no Hoare annotation was computed. [2020-10-28 10:18:42,525 INFO L274 CegarLoopResult]: For program point L84(lines 84 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,525 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,525 INFO L274 CegarLoopResult]: For program point L745(lines 745 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,526 INFO L270 CegarLoopResult]: At program point L1604(line 1604) the Hoare annotation is: (let ((.cse0 (not (= |old(~a5~0)| 1)))) (and (or (= |old(~a12~0)| 1) .cse0) (or .cse0 (not (= 0 |old(~a11~0)|))) (or (not (<= |old(~a11~0)| 1)) (not (<= |old(~a5~0)| 1)) (not (<= 1 |old(~a3~0)|)) (not (<= 1 |old(~a11~0)|)) (not (<= |old(~a26~0)| 1)) (not (<= 1 |old(~a5~0)|)) (not (= ~a18~0 1)) (not (<= |old(~a6~0)| 1)) (not (<= |old(~a27~0)| 1)) (not (<= 1 |old(~a26~0)|))) (or .cse0 (not (= |old(~a3~0)| 0))) (or .cse0 (not (<= |old(~a27~0)| 0))) (or .cse0 (not (<= 2 |old(~a3~0)|))))) [2020-10-28 10:18:42,526 INFO L274 CegarLoopResult]: For program point L1604-1(line 1604) no Hoare annotation was computed. [2020-10-28 10:18:42,526 INFO L274 CegarLoopResult]: For program point L1538(line 1538) no Hoare annotation was computed. [2020-10-28 10:18:42,526 INFO L274 CegarLoopResult]: For program point L1472(line 1472) no Hoare annotation was computed. [2020-10-28 10:18:42,526 INFO L274 CegarLoopResult]: For program point L1076(lines 1076 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,526 INFO L274 CegarLoopResult]: For program point L548(lines 548 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,526 INFO L274 CegarLoopResult]: For program point L482(lines 482 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,526 INFO L274 CegarLoopResult]: For program point L416(lines 416 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,527 INFO L274 CegarLoopResult]: For program point L350(lines 350 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,527 INFO L274 CegarLoopResult]: For program point L1606-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,527 INFO L274 CegarLoopResult]: For program point L1540-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,527 INFO L274 CegarLoopResult]: For program point L1474-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,527 INFO L274 CegarLoopResult]: For program point L1276(lines 1276 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,527 INFO L274 CegarLoopResult]: For program point L1144(lines 1144 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,527 INFO L274 CegarLoopResult]: For program point L616(lines 616 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,527 INFO L274 CegarLoopResult]: For program point L1607(line 1607) no Hoare annotation was computed. [2020-10-28 10:18:42,527 INFO L274 CegarLoopResult]: For program point L1541(line 1541) no Hoare annotation was computed. [2020-10-28 10:18:42,527 INFO L274 CegarLoopResult]: For program point L1475(line 1475) no Hoare annotation was computed. [2020-10-28 10:18:42,527 INFO L274 CegarLoopResult]: For program point L286(lines 286 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,528 INFO L274 CegarLoopResult]: For program point L1013(lines 1013 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,528 INFO L274 CegarLoopResult]: For program point L815(lines 815 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,528 INFO L274 CegarLoopResult]: For program point L1212(lines 1212 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,528 INFO L274 CegarLoopResult]: For program point L1609-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,528 INFO L274 CegarLoopResult]: For program point L1543-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,528 INFO L274 CegarLoopResult]: For program point L1477-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,528 INFO L274 CegarLoopResult]: For program point L1213(lines 1213 1226) no Hoare annotation was computed. [2020-10-28 10:18:42,528 INFO L274 CegarLoopResult]: For program point L1213-2(lines 1213 1226) no Hoare annotation was computed. [2020-10-28 10:18:42,528 INFO L274 CegarLoopResult]: For program point L949(lines 949 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,528 INFO L274 CegarLoopResult]: For program point L1610(line 1610) no Hoare annotation was computed. [2020-10-28 10:18:42,529 INFO L274 CegarLoopResult]: For program point L1544(line 1544) no Hoare annotation was computed. [2020-10-28 10:18:42,529 INFO L274 CegarLoopResult]: For program point L1478(line 1478) no Hoare annotation was computed. [2020-10-28 10:18:42,529 INFO L274 CegarLoopResult]: For program point L1346(lines 1346 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,529 INFO L274 CegarLoopResult]: For program point L157(lines 157 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,529 INFO L274 CegarLoopResult]: For program point L91(lines 91 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,529 INFO L274 CegarLoopResult]: For program point L686(lines 686 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,529 INFO L274 CegarLoopResult]: For program point L224(lines 224 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,529 INFO L274 CegarLoopResult]: For program point L687(lines 687 701) no Hoare annotation was computed. [2020-10-28 10:18:42,529 INFO L274 CegarLoopResult]: For program point L687-2(lines 687 701) no Hoare annotation was computed. [2020-10-28 10:18:42,530 INFO L274 CegarLoopResult]: For program point L1612-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,530 INFO L274 CegarLoopResult]: For program point L1546-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,530 INFO L274 CegarLoopResult]: For program point L1480-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,530 INFO L274 CegarLoopResult]: For program point L1613(line 1613) no Hoare annotation was computed. [2020-10-28 10:18:42,530 INFO L274 CegarLoopResult]: For program point L1547(line 1547) no Hoare annotation was computed. [2020-10-28 10:18:42,530 INFO L274 CegarLoopResult]: For program point L490(lines 490 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,530 INFO L274 CegarLoopResult]: For program point L1481(line 1481) no Hoare annotation was computed. [2020-10-28 10:18:42,530 INFO L274 CegarLoopResult]: For program point L424(lines 424 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,530 INFO L274 CegarLoopResult]: For program point L358(lines 358 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,530 INFO L274 CegarLoopResult]: For program point L755(lines 755 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,531 INFO L274 CegarLoopResult]: For program point L624(lines 624 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,531 INFO L274 CegarLoopResult]: For program point L558(lines 558 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,531 INFO L274 CegarLoopResult]: For program point L1615-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,531 INFO L274 CegarLoopResult]: For program point L1549-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,531 INFO L274 CegarLoopResult]: For program point L1483-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,531 INFO L274 CegarLoopResult]: For program point L294(lines 294 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,531 INFO L274 CegarLoopResult]: For program point L1285(lines 1285 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,531 INFO L274 CegarLoopResult]: For program point L1616(line 1616) no Hoare annotation was computed. [2020-10-28 10:18:42,531 INFO L274 CegarLoopResult]: For program point L1550(line 1550) no Hoare annotation was computed. [2020-10-28 10:18:42,531 INFO L274 CegarLoopResult]: For program point L1484(line 1484) no Hoare annotation was computed. [2020-10-28 10:18:42,531 INFO L274 CegarLoopResult]: For program point L1352(lines 1352 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,532 INFO L274 CegarLoopResult]: For program point L1286(lines 1286 1305) no Hoare annotation was computed. [2020-10-28 10:18:42,532 INFO L274 CegarLoopResult]: For program point L1286-2(lines 1286 1305) no Hoare annotation was computed. [2020-10-28 10:18:42,532 INFO L274 CegarLoopResult]: For program point L1154(lines 1154 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,532 INFO L274 CegarLoopResult]: For program point L97(lines 97 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,532 INFO L274 CegarLoopResult]: For program point L1088(lines 1088 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,532 INFO L274 CegarLoopResult]: For program point L1023(lines 1023 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,532 INFO L274 CegarLoopResult]: For program point L957(lines 957 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,532 INFO L274 CegarLoopResult]: For program point L891(lines 891 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,532 INFO L274 CegarLoopResult]: For program point L1618-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,532 INFO L274 CegarLoopResult]: For program point L1552-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,533 INFO L274 CegarLoopResult]: For program point L1486-1(lines 56 1652) no Hoare annotation was computed. [2020-10-28 10:18:42,533 INFO L274 CegarLoopResult]: For program point L1619(line 1619) no Hoare annotation was computed. [2020-10-28 10:18:42,533 INFO L274 CegarLoopResult]: For program point L1553(line 1553) no Hoare annotation was computed. [2020-10-28 10:18:42,533 INFO L274 CegarLoopResult]: For program point L1487(line 1487) no Hoare annotation was computed. [2020-10-28 10:18:42,533 INFO L274 CegarLoopResult]: For program point L166(lines 166 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,533 INFO L274 CegarLoopResult]: For program point L827(lines 827 1467) no Hoare annotation was computed. [2020-10-28 10:18:42,533 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 10:18:42,533 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a5~0 1) (not (= ~a12~0 1)) (= ~a11~0 0)) [2020-10-28 10:18:42,533 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 10:18:42,533 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 10:18:42,534 INFO L274 CegarLoopResult]: For program point L1665(line 1665) no Hoare annotation was computed. [2020-10-28 10:18:42,534 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 1654 1671) the Hoare annotation is: (or (= |old(~a12~0)| 1) (not (= |old(~a5~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a26~0 |old(~a26~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a6~0 |old(~a6~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a29~0 |old(~a29~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a0~0 |old(~a0~0)|) (= ~a3~0 |old(~a3~0)|) (= ~a9~0 |old(~a9~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a5~0 |old(~a5~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a2~0 |old(~a2~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a14~0 |old(~a14~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a23~0 |old(~a23~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a15~0 |old(~a15~0)|) (= ~a13~0 |old(~a13~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a22~0 |old(~a22~0)|) (= ~a10~0 |old(~a10~0)|) (= ~a27~0 |old(~a27~0)|)) (not (= 0 |old(~a11~0)|))) [2020-10-28 10:18:42,534 INFO L270 CegarLoopResult]: At program point L1660-2(lines 1660 1670) the Hoare annotation is: (let ((.cse0 (= ~a5~0 |old(~a5~0)|))) (or (= |old(~a12~0)| 1) (not (= |old(~a5~0)| 1)) (not (= 0 |old(~a11~0)|)) (and (<= 2 ~a3~0) .cse0) (and (<= 1 ~a11~0) (<= ~a6~0 1) .cse0 (<= 1 ~a3~0) (<= ~a11~0 1) (= ~a18~0 1) (<= 1 ~a26~0) (<= ~a26~0 1) (<= ~a27~0 1)) (and .cse0 (= ~a11~0 0)) (and .cse0 (= ~a3~0 0)) (and .cse0 (<= ~a27~0 0)) (and .cse0 (not (= ~a12~0 1))))) [2020-10-28 10:18:42,534 INFO L274 CegarLoopResult]: For program point L1660-3(lines 1654 1671) no Hoare annotation was computed. [2020-10-28 10:18:42,534 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 1654 1671) no Hoare annotation was computed. [2020-10-28 10:18:42,534 INFO L270 CegarLoopResult]: At program point L1668(line 1668) the Hoare annotation is: (let ((.cse0 (= ~a5~0 |old(~a5~0)|))) (or (= |old(~a12~0)| 1) (not (= |old(~a5~0)| 1)) (not (= 0 |old(~a11~0)|)) (and (<= 2 ~a3~0) .cse0) (and (<= 1 ~a11~0) (<= ~a6~0 1) .cse0 (<= 1 ~a3~0) (<= ~a11~0 1) (= ~a18~0 1) (<= 1 ~a26~0) (<= ~a26~0 1) (<= ~a27~0 1)) (and .cse0 (= ~a11~0 0)) (and .cse0 (= ~a3~0 0)) (and .cse0 (<= ~a27~0 0)) (and .cse0 (not (= ~a12~0 1))))) [2020-10-28 10:18:42,535 INFO L274 CegarLoopResult]: For program point L1668-1(line 1668) no Hoare annotation was computed. [2020-10-28 10:18:42,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:18:42 BoogieIcfgContainer [2020-10-28 10:18:42,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 10:18:42,562 INFO L168 Benchmark]: Toolchain (without parser) took 80802.68 ms. Allocated memory was 162.5 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 133.0 MB in the beginning and 1.0 GB in the end (delta: -911.0 MB). Peak memory consumption was 895.3 MB. Max. memory is 8.0 GB. [2020-10-28 10:18:42,562 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 162.5 MB. Free memory is still 134.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 10:18:42,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1181.03 ms. Allocated memory is still 162.5 MB. Free memory was 132.3 MB in the beginning and 105.1 MB in the end (delta: 27.2 MB). Peak memory consumption was 29.7 MB. Max. memory is 8.0 GB. [2020-10-28 10:18:42,564 INFO L168 Benchmark]: Boogie Preprocessor took 217.06 ms. Allocated memory is still 162.5 MB. Free memory was 104.6 MB in the beginning and 93.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-28 10:18:42,571 INFO L168 Benchmark]: RCFGBuilder took 2173.60 ms. Allocated memory was 162.5 MB in the beginning and 209.7 MB in the end (delta: 47.2 MB). Free memory was 93.4 MB in the beginning and 162.8 MB in the end (delta: -69.4 MB). Peak memory consumption was 73.5 MB. Max. memory is 8.0 GB. [2020-10-28 10:18:42,575 INFO L168 Benchmark]: TraceAbstraction took 77218.41 ms. Allocated memory was 209.7 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 162.3 MB in the beginning and 1.0 GB in the end (delta: -881.7 MB). Peak memory consumption was 877.2 MB. Max. memory is 8.0 GB. [2020-10-28 10:18:42,581 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 162.5 MB. Free memory is still 134.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1181.03 ms. Allocated memory is still 162.5 MB. Free memory was 132.3 MB in the beginning and 105.1 MB in the end (delta: 27.2 MB). Peak memory consumption was 29.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 217.06 ms. Allocated memory is still 162.5 MB. Free memory was 104.6 MB in the beginning and 93.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2173.60 ms. Allocated memory was 162.5 MB in the beginning and 209.7 MB in the end (delta: 47.2 MB). Free memory was 93.4 MB in the beginning and 162.8 MB in the end (delta: -69.4 MB). Peak memory consumption was 73.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 77218.41 ms. Allocated memory was 209.7 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 162.3 MB in the beginning and 1.0 GB in the end (delta: -881.7 MB). Peak memory consumption was 877.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1660]: Loop Invariant Derived loop invariant: (((((((\old(a12) == 1 || !(\old(a5) == 1)) || !(0 == \old(a11))) || (2 <= a3 && a5 == \old(a5))) || ((((((((1 <= a11 && a6 <= 1) && a5 == \old(a5)) && 1 <= a3) && a11 <= 1) && a18 == 1) && 1 <= a26) && a26 <= 1) && a27 <= 1)) || (a5 == \old(a5) && a11 == 0)) || (a5 == \old(a5) && a3 == 0)) || (a5 == \old(a5) && a27 <= 0)) || (a5 == \old(a5) && !(a12 == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 315 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 71.8s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 28.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 329 SDtfs, 2920 SDslu, 377 SDs, 0 SdLazy, 10395 SolverSat, 1286 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5208occurred 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: 0.9s AutomataMinimizationTime, 8 MinimizatonAttempts, 60 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 278 PreInvPairs, 330 NumberOfFragments, 1129 HoareAnnotationTreeSize, 278 FomulaSimplifications, 95920 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 4554 FormulaSimplificationTreeSizeReductionInter, 4.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 39.1s InterpolantComputationTime, 1966 NumberOfCodeBlocks, 1966 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1958 ConstructedInterpolants, 0 QuantifiedInterpolants, 4761502 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 454/467 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...