/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 06:37:20,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 06:37:20,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 06:37:20,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 06:37:20,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 06:37:20,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 06:37:20,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 06:37:20,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 06:37:20,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 06:37:20,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 06:37:20,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 06:37:20,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 06:37:20,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 06:37:20,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 06:37:20,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 06:37:20,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 06:37:20,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 06:37:20,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 06:37:20,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 06:37:20,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 06:37:20,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 06:37:20,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 06:37:20,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 06:37:20,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 06:37:20,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 06:37:20,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 06:37:20,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 06:37:20,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 06:37:20,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 06:37:20,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 06:37:20,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 06:37:20,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 06:37:20,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 06:37:20,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 06:37:20,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 06:37:20,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 06:37:20,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 06:37:20,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 06:37:20,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 06:37:20,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 06:37:20,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 06:37:20,127 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 06:37:20,187 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 06:37:20,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 06:37:20,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 06:37:20,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 06:37:20,194 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 06:37:20,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 06:37:20,195 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 06:37:20,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 06:37:20,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 06:37:20,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 06:37:20,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 06:37:20,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 06:37:20,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 06:37:20,197 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 06:37:20,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 06:37:20,197 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 06:37:20,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 06:37:20,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 06:37:20,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 06:37:20,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 06:37:20,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 06:37:20,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 06:37:20,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 06:37:20,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 06:37:20,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 06:37:20,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 06:37:20,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 06:37:20,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 06:37:20,201 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 06:37:20,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 06:37:20,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 06:37:20,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 06:37:20,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 06:37:20,607 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 06:37:20,608 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 06:37:20,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label06.c [2020-10-29 06:37:20,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/613bff256/726eb405f7d0418bbc233513a7098197/FLAGc4212ecfd [2020-10-29 06:37:21,346 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 06:37:21,347 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label06.c [2020-10-29 06:37:21,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/613bff256/726eb405f7d0418bbc233513a7098197/FLAGc4212ecfd [2020-10-29 06:37:21,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/613bff256/726eb405f7d0418bbc233513a7098197 [2020-10-29 06:37:21,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 06:37:21,586 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 06:37:21,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 06:37:21,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 06:37:21,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 06:37:21,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:37:21" (1/1) ... [2020-10-29 06:37:21,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38b19e4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:21, skipping insertion in model container [2020-10-29 06:37:21,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:37:21" (1/1) ... [2020-10-29 06:37:21,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 06:37:21,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 06:37:22,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:37:22,078 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 06:37:22,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:37:22,311 INFO L208 MainTranslator]: Completed translation [2020-10-29 06:37:22,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:22 WrapperNode [2020-10-29 06:37:22,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 06:37:22,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 06:37:22,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 06:37:22,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 06:37:22,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:22" (1/1) ... [2020-10-29 06:37:22,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:22" (1/1) ... [2020-10-29 06:37:22,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:22" (1/1) ... [2020-10-29 06:37:22,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:22" (1/1) ... [2020-10-29 06:37:22,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:22" (1/1) ... [2020-10-29 06:37:22,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:22" (1/1) ... [2020-10-29 06:37:22,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:22" (1/1) ... [2020-10-29 06:37:22,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 06:37:22,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 06:37:22,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 06:37:22,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 06:37:22,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:22" (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 [2020-10-29 06:37:22,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 06:37:22,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 06:37:22,596 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 06:37:22,596 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 06:37:22,596 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 06:37:22,597 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 06:37:22,597 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 06:37:22,597 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 06:37:22,597 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 06:37:22,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 06:37:22,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 06:37:22,599 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 06:37:22,599 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 06:37:22,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 06:37:22,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 06:37:22,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 06:37:22,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 06:37:22,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 06:37:22,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 06:37:24,097 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 06:37:24,098 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 06:37:24,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:37:24 BoogieIcfgContainer [2020-10-29 06:37:24,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 06:37:24,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 06:37:24,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 06:37:24,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 06:37:24,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:37:21" (1/3) ... [2020-10-29 06:37:24,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165d191f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:37:24, skipping insertion in model container [2020-10-29 06:37:24,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:22" (2/3) ... [2020-10-29 06:37:24,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165d191f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:37:24, skipping insertion in model container [2020-10-29 06:37:24,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:37:24" (3/3) ... [2020-10-29 06:37:24,110 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label06.c [2020-10-29 06:37:24,123 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 06:37:24,128 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 06:37:24,142 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 06:37:24,172 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 06:37:24,172 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 06:37:24,172 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 06:37:24,172 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 06:37:24,172 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 06:37:24,173 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 06:37:24,173 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 06:37:24,173 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 06:37:24,196 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-29 06:37:24,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-29 06:37:24,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:24,205 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] [2020-10-29 06:37:24,205 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:24,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:24,211 INFO L82 PathProgramCache]: Analyzing trace with hash -26140774, now seen corresponding path program 1 times [2020-10-29 06:37:24,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:24,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454589362] [2020-10-29 06:37:24,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:24,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:24,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:24,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 06:37:24,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:24,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-10-29 06:37:24,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:24,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:24,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:37:24,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:37:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-29 06:37:24,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 06:37:25,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:25,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:25,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:25,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:25,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:25,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 06:37:25,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:25,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:25,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:25,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:25,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:37:25,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:25,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:37:25,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454589362] [2020-10-29 06:37:25,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:37:25,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 06:37:25,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678969511] [2020-10-29 06:37:25,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 06:37:25,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:25,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 06:37:25,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 06:37:25,107 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-29 06:37:26,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:26,870 INFO L93 Difference]: Finished difference Result 586 states and 1013 transitions. [2020-10-29 06:37:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:37:26,873 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-29 06:37:26,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:26,888 INFO L225 Difference]: With dead ends: 586 [2020-10-29 06:37:26,889 INFO L226 Difference]: Without dead ends: 303 [2020-10-29 06:37:26,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:37:26,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-29 06:37:26,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2020-10-29 06:37:26,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-29 06:37:26,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 424 transitions. [2020-10-29 06:37:26,969 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 424 transitions. Word has length 31 [2020-10-29 06:37:26,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:26,970 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 424 transitions. [2020-10-29 06:37:26,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 06:37:26,970 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 424 transitions. [2020-10-29 06:37:26,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-29 06:37:26,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:26,976 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:37:26,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 06:37:26,977 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:26,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:26,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1471292837, now seen corresponding path program 1 times [2020-10-29 06:37:26,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:26,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278368457] [2020-10-29 06:37:26,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:27,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:27,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:28,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:28,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:28,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-29 06:37:28,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:37:28,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1200 [2020-10-29 06:37:28,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:28,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:28,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:37:28,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:37:28,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-29 06:37:28,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:28,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:28,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:28,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:28,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:28,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:28,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 06:37:28,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:28,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:28,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:28,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:28,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:37:28,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:28,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:28,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:28,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:28,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:37:28,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-29 06:37:28,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:28,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:37:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 06:37:28,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:28,602 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:37:28,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278368457] [2020-10-29 06:37:28,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:37:28,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 06:37:28,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902423209] [2020-10-29 06:37:28,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:37:28,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:28,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:37:28,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:37:28,610 INFO L87 Difference]: Start difference. First operand 297 states and 424 transitions. Second operand 7 states. [2020-10-29 06:37:30,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:30,403 INFO L93 Difference]: Finished difference Result 908 states and 1332 transitions. [2020-10-29 06:37:30,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:37:30,404 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 103 [2020-10-29 06:37:30,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:30,412 INFO L225 Difference]: With dead ends: 908 [2020-10-29 06:37:30,412 INFO L226 Difference]: Without dead ends: 617 [2020-10-29 06:37:30,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:37:30,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2020-10-29 06:37:30,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 597. [2020-10-29 06:37:30,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-29 06:37:30,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 768 transitions. [2020-10-29 06:37:30,469 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 768 transitions. Word has length 103 [2020-10-29 06:37:30,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:30,470 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 768 transitions. [2020-10-29 06:37:30,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:37:30,470 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 768 transitions. [2020-10-29 06:37:30,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-29 06:37:30,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:30,475 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:37:30,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 06:37:30,476 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:30,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:30,477 INFO L82 PathProgramCache]: Analyzing trace with hash -448060235, now seen corresponding path program 1 times [2020-10-29 06:37:30,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:30,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1453019814] [2020-10-29 06:37:30,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:30,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:30,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:31,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:31,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-29 06:37:31,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:37:31,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 780 [2020-10-29 06:37:31,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:31,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:31,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:31,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-29 06:37:31,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 06:37:31,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:31,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:31,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:31,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:31,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:31,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:31,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 06:37:31,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:31,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:31,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:31,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:31,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:31,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:31,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:31,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:31,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:31,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 06:37:31,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:31,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 06:37:31,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:31,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:31,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:31,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:31,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:37:31,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:31,676 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:37:31,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1453019814] [2020-10-29 06:37:31,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:31,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 06:37:31,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275272806] [2020-10-29 06:37:31,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 06:37:31,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:31,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 06:37:31,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:37:31,680 INFO L87 Difference]: Start difference. First operand 597 states and 768 transitions. Second operand 6 states. [2020-10-29 06:37:33,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:33,751 INFO L93 Difference]: Finished difference Result 1043 states and 1427 transitions. [2020-10-29 06:37:33,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 06:37:33,757 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2020-10-29 06:37:33,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:33,768 INFO L225 Difference]: With dead ends: 1043 [2020-10-29 06:37:33,768 INFO L226 Difference]: Without dead ends: 1040 [2020-10-29 06:37:33,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:37:33,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2020-10-29 06:37:33,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 891. [2020-10-29 06:37:33,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-10-29 06:37:33,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1241 transitions. [2020-10-29 06:37:33,858 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1241 transitions. Word has length 110 [2020-10-29 06:37:33,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:33,859 INFO L481 AbstractCegarLoop]: Abstraction has 891 states and 1241 transitions. [2020-10-29 06:37:33,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 06:37:33,860 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1241 transitions. [2020-10-29 06:37:33,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-29 06:37:33,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:33,877 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 06:37:33,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 06:37:33,878 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:33,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:33,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1209949288, now seen corresponding path program 1 times [2020-10-29 06:37:33,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:33,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821722697] [2020-10-29 06:37:33,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:33,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:34,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:35,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:35,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:35,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-29 06:37:35,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:37:35,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1879 [2020-10-29 06:37:35,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:35,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:35,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:35,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-29 06:37:35,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:37:35,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:35,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:35,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:35,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:35,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:35,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:35,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:37:35,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:35,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:35,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:35,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:35,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:35,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:35,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:35,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:35,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:35,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:37:35,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:35,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 06:37:35,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:35,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:35,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:35,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:35,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:37:35,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:36,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 06:37:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:36,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:36,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:36,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:37:36,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:36,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-29 06:37:36,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:36,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:36,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:36,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:37:36,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:37:36,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:36,456 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:37:36,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821722697] [2020-10-29 06:37:36,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:36,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:37:36,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847069350] [2020-10-29 06:37:36,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:37:36,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:36,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:37:36,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:37:36,459 INFO L87 Difference]: Start difference. First operand 891 states and 1241 transitions. Second operand 7 states. [2020-10-29 06:37:38,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:38,153 INFO L93 Difference]: Finished difference Result 2251 states and 3264 transitions. [2020-10-29 06:37:38,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:37:38,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 220 [2020-10-29 06:37:38,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:38,164 INFO L225 Difference]: With dead ends: 2251 [2020-10-29 06:37:38,164 INFO L226 Difference]: Without dead ends: 1366 [2020-10-29 06:37:38,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:37:38,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2020-10-29 06:37:38,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1052. [2020-10-29 06:37:38,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-10-29 06:37:38,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1441 transitions. [2020-10-29 06:37:38,218 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1441 transitions. Word has length 220 [2020-10-29 06:37:38,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:38,219 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1441 transitions. [2020-10-29 06:37:38,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:37:38,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1441 transitions. [2020-10-29 06:37:38,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-29 06:37:38,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:38,225 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:37:38,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 06:37:38,225 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:38,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:38,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1978939854, now seen corresponding path program 1 times [2020-10-29 06:37:38,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:38,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143033817] [2020-10-29 06:37:38,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:38,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:38,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:39,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:39,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:42,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:42,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-10-29 06:37:42,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:37:42,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4093 [2020-10-29 06:37:42,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:42,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-29 06:37:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:37:42,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:42,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:42,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:42,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:42,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:42,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:42,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:37:42,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:42,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:42,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:42,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:42,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:42,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:42,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 06:37:42,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:42,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 06:37:42,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:42,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:42,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:42,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:42,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 06:37:42,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:37:42,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 06:37:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:42,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:42,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:42,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:37:42,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:42,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-29 06:37:42,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:42,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:42,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:42,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:37:42,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:37:42,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:42,979 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:37:42,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143033817] [2020-10-29 06:37:42,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:42,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:37:42,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551359638] [2020-10-29 06:37:42,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:37:42,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:42,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:37:42,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:37:42,982 INFO L87 Difference]: Start difference. First operand 1052 states and 1441 transitions. Second operand 7 states. [2020-10-29 06:37:45,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:45,081 INFO L93 Difference]: Finished difference Result 2593 states and 3715 transitions. [2020-10-29 06:37:45,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:37:45,081 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-10-29 06:37:45,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:45,094 INFO L225 Difference]: With dead ends: 2593 [2020-10-29 06:37:45,095 INFO L226 Difference]: Without dead ends: 1547 [2020-10-29 06:37:45,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:37:45,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2020-10-29 06:37:45,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1495. [2020-10-29 06:37:45,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-10-29 06:37:45,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1969 transitions. [2020-10-29 06:37:45,172 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1969 transitions. Word has length 227 [2020-10-29 06:37:45,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:45,173 INFO L481 AbstractCegarLoop]: Abstraction has 1495 states and 1969 transitions. [2020-10-29 06:37:45,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:37:45,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1969 transitions. [2020-10-29 06:37:45,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-29 06:37:45,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:45,179 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 06:37:45,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 06:37:45,179 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:45,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:45,180 INFO L82 PathProgramCache]: Analyzing trace with hash -581696374, now seen corresponding path program 1 times [2020-10-29 06:37:45,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:45,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654080009] [2020-10-29 06:37:45,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:45,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:45,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:45,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:46,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:46,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:46,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-29 06:37:46,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:37:46,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1671 [2020-10-29 06:37:46,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:46,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:46,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:46,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-29 06:37:46,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:37:46,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:46,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:47,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:47,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:47,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:47,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:47,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:37:47,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:47,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:47,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:47,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:47,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:47,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:47,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:47,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:47,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:47,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 06:37:47,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:47,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 06:37:47,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:47,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:47,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:47,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:47,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:37:47,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:47,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 06:37:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:47,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:47,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:47,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:37:47,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:47,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-29 06:37:47,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:47,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:47,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:47,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:37:47,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:37:47,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:47,598 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:37:47,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654080009] [2020-10-29 06:37:47,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:47,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:37:47,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756828596] [2020-10-29 06:37:47,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:37:47,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:47,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:37:47,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:37:47,602 INFO L87 Difference]: Start difference. First operand 1495 states and 1969 transitions. Second operand 7 states. [2020-10-29 06:37:49,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:49,449 INFO L93 Difference]: Finished difference Result 3459 states and 4650 transitions. [2020-10-29 06:37:49,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:37:49,452 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 229 [2020-10-29 06:37:49,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:49,462 INFO L225 Difference]: With dead ends: 3459 [2020-10-29 06:37:49,462 INFO L226 Difference]: Without dead ends: 1529 [2020-10-29 06:37:49,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:37:49,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2020-10-29 06:37:49,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1350. [2020-10-29 06:37:49,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1350 states. [2020-10-29 06:37:49,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1672 transitions. [2020-10-29 06:37:49,533 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1672 transitions. Word has length 229 [2020-10-29 06:37:49,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:49,534 INFO L481 AbstractCegarLoop]: Abstraction has 1350 states and 1672 transitions. [2020-10-29 06:37:49,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:37:49,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1672 transitions. [2020-10-29 06:37:49,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-29 06:37:49,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:49,540 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 06:37:49,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 06:37:49,541 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:49,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:49,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1920298874, now seen corresponding path program 1 times [2020-10-29 06:37:49,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:49,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092145644] [2020-10-29 06:37:49,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:49,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:50,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:51,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:52,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:52,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 06:37:52,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:37:52,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2937 [2020-10-29 06:37:52,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:52,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:52,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:37:52,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:37:52,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 06:37:52,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:52,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:52,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:52,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:52,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:52,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:52,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 06:37:52,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:52,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:52,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:52,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:52,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:37:52,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:52,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:52,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:52,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:52,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:37:52,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:52,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-29 06:37:52,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:52,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:37:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 06:37:52,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:52,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 06:37:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:52,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:52,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:52,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:37:52,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:52,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 06:37:52,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:52,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:52,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:52,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-29 06:37:52,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:52,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:53,114 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 46 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 06:37:53,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092145644] [2020-10-29 06:37:53,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:53,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:37:53,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808997832] [2020-10-29 06:37:53,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:37:53,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:53,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:37:53,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:37:53,117 INFO L87 Difference]: Start difference. First operand 1350 states and 1672 transitions. Second operand 7 states. [2020-10-29 06:37:54,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:54,511 INFO L93 Difference]: Finished difference Result 2851 states and 3517 transitions. [2020-10-29 06:37:54,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:37:54,512 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-10-29 06:37:54,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:54,520 INFO L225 Difference]: With dead ends: 2851 [2020-10-29 06:37:54,521 INFO L226 Difference]: Without dead ends: 1507 [2020-10-29 06:37:54,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:37:54,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2020-10-29 06:37:54,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1493. [2020-10-29 06:37:54,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1493 states. [2020-10-29 06:37:54,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1822 transitions. [2020-10-29 06:37:54,575 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1822 transitions. Word has length 237 [2020-10-29 06:37:54,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:54,575 INFO L481 AbstractCegarLoop]: Abstraction has 1493 states and 1822 transitions. [2020-10-29 06:37:54,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:37:54,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1822 transitions. [2020-10-29 06:37:54,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-29 06:37:54,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:54,582 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 06:37:54,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 06:37:54,582 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:54,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:54,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1105386046, now seen corresponding path program 1 times [2020-10-29 06:37:54,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:54,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426585069] [2020-10-29 06:37:54,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:54,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:54,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:55,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:56,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:56,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-29 06:37:56,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:37:56,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1693 [2020-10-29 06:37:56,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:56,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:37:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:37:56,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:56,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:56,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:56,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:56,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:56,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:56,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:37:56,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:56,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:56,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:56,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:56,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:56,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:37:56,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:56,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-29 06:37:56,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:56,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:56,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:56,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:56,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:37:56,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:56,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:37:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:56,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:56,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:56,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:37:56,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:56,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-29 06:37:56,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:56,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:56,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:56,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:37:56,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:37:56,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:57,080 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:37:57,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426585069] [2020-10-29 06:37:57,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:57,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:37:57,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689533920] [2020-10-29 06:37:57,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:37:57,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:57,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:37:57,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:37:57,083 INFO L87 Difference]: Start difference. First operand 1493 states and 1822 transitions. Second operand 7 states. [2020-10-29 06:37:58,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:58,729 INFO L93 Difference]: Finished difference Result 3008 states and 3745 transitions. [2020-10-29 06:37:58,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:37:58,735 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 265 [2020-10-29 06:37:58,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:58,744 INFO L225 Difference]: With dead ends: 3008 [2020-10-29 06:37:58,744 INFO L226 Difference]: Without dead ends: 1664 [2020-10-29 06:37:58,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:37:58,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2020-10-29 06:37:58,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1648. [2020-10-29 06:37:58,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1648 states. [2020-10-29 06:37:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 1977 transitions. [2020-10-29 06:37:58,801 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 1977 transitions. Word has length 265 [2020-10-29 06:37:58,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:58,801 INFO L481 AbstractCegarLoop]: Abstraction has 1648 states and 1977 transitions. [2020-10-29 06:37:58,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:37:58,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 1977 transitions. [2020-10-29 06:37:58,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-29 06:37:58,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:58,810 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 06:37:58,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 06:37:58,811 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:58,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:58,811 INFO L82 PathProgramCache]: Analyzing trace with hash -513360339, now seen corresponding path program 1 times [2020-10-29 06:37:58,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:58,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029296059] [2020-10-29 06:37:58,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:58,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:59,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:59,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:00,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:02,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:02,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 359 [2020-10-29 06:38:02,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:38:02,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3759 [2020-10-29 06:38:02,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:02,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:02,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:38:02,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:38:02,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-29 06:38:02,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:02,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:02,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:02,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:02,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:02,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:02,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 06:38:02,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:02,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:02,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:02,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:02,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:02,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:02,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:02,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:02,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:02,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:38:02,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:02,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 06:38:02,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:02,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:02,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:02,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:02,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:38:02,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:02,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:38:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:02,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:03,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:03,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:38:03,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:03,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 06:38:03,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:03,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:03,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:03,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:38:03,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 06:38:03,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:03,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-29 06:38:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:03,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:03,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:03,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 06:38:03,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:03,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-29 06:38:03,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:03,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:03,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:03,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:38:03,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-29 06:38:03,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:03,554 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 315 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 06:38:03,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1029296059] [2020-10-29 06:38:03,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:03,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 06:38:03,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038831319] [2020-10-29 06:38:03,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 06:38:03,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:03,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 06:38:03,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:38:03,569 INFO L87 Difference]: Start difference. First operand 1648 states and 1977 transitions. Second operand 8 states. [2020-10-29 06:38:05,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:05,566 INFO L93 Difference]: Finished difference Result 3751 states and 4588 transitions. [2020-10-29 06:38:05,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:38:05,571 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 343 [2020-10-29 06:38:05,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:05,584 INFO L225 Difference]: With dead ends: 3751 [2020-10-29 06:38:05,584 INFO L226 Difference]: Without dead ends: 2252 [2020-10-29 06:38:05,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-10-29 06:38:05,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2020-10-29 06:38:05,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 2246. [2020-10-29 06:38:05,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2246 states. [2020-10-29 06:38:05,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 2668 transitions. [2020-10-29 06:38:05,657 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 2668 transitions. Word has length 343 [2020-10-29 06:38:05,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:05,658 INFO L481 AbstractCegarLoop]: Abstraction has 2246 states and 2668 transitions. [2020-10-29 06:38:05,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 06:38:05,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 2668 transitions. [2020-10-29 06:38:05,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2020-10-29 06:38:05,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:05,669 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:05,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 06:38:05,670 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:05,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:05,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1983340259, now seen corresponding path program 1 times [2020-10-29 06:38:05,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:05,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453442888] [2020-10-29 06:38:05,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:05,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:05,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:07,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:08,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:08,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 368 [2020-10-29 06:38:08,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:38:08,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2638 [2020-10-29 06:38:08,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:08,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:08,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:08,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:38:08,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 06:38:08,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:08,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:08,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:08,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:08,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:08,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:08,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:38:08,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:08,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:08,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:08,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:08,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:08,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:08,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:08,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:08,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:08,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:38:08,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:08,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 06:38:08,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:08,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:08,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:08,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:08,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:38:08,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:08,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:38:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:08,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:08,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:08,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:38:08,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:08,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-29 06:38:08,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:08,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:08,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:08,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:38:08,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 06:38:08,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:08,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-29 06:38:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:08,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:08,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:08,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:38:08,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:08,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 06:38:08,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:08,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:08,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:08,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-29 06:38:08,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:08,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:09,185 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 157 proven. 86 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-29 06:38:09,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453442888] [2020-10-29 06:38:09,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:09,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:38:09,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580869962] [2020-10-29 06:38:09,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:38:09,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:09,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:38:09,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:38:09,190 INFO L87 Difference]: Start difference. First operand 2246 states and 2668 transitions. Second operand 7 states. [2020-10-29 06:38:10,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:10,961 INFO L93 Difference]: Finished difference Result 4347 states and 5184 transitions. [2020-10-29 06:38:10,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:38:10,962 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 352 [2020-10-29 06:38:10,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:10,978 INFO L225 Difference]: With dead ends: 4347 [2020-10-29 06:38:10,979 INFO L226 Difference]: Without dead ends: 2250 [2020-10-29 06:38:10,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:38:10,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250 states. [2020-10-29 06:38:11,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250 to 2246. [2020-10-29 06:38:11,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2246 states. [2020-10-29 06:38:11,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 2645 transitions. [2020-10-29 06:38:11,057 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 2645 transitions. Word has length 352 [2020-10-29 06:38:11,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:11,058 INFO L481 AbstractCegarLoop]: Abstraction has 2246 states and 2645 transitions. [2020-10-29 06:38:11,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:38:11,058 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 2645 transitions. [2020-10-29 06:38:11,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-10-29 06:38:11,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:11,069 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:11,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 06:38:11,069 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:11,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:11,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1690744941, now seen corresponding path program 1 times [2020-10-29 06:38:11,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:11,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125615702] [2020-10-29 06:38:11,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:11,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:11,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:11,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:11,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-29 06:38:11,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:38:11,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 854 [2020-10-29 06:38:11,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:11,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 339 [2020-10-29 06:38:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 06:38:11,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:12,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:12,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:12,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:12,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:12,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:12,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:38:12,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:12,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:12,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:12,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:12,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:12,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:12,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:12,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:12,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:12,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:38:12,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:12,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 06:38:12,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:12,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:12,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:12,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:12,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:12,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:12,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:38:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:12,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:12,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:12,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 06:38:12,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:12,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 06:38:12,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:12,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:12,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:12,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:12,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:12,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-29 06:38:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:12,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:12,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:12,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 06:38:12,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:12,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 06:38:12,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:12,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:38:12,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:12,421 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 72 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-29 06:38:12,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125615702] [2020-10-29 06:38:12,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:12,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:38:12,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616459667] [2020-10-29 06:38:12,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:38:12,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:12,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:38:12,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:38:12,423 INFO L87 Difference]: Start difference. First operand 2246 states and 2645 transitions. Second operand 5 states. [2020-10-29 06:38:13,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:13,813 INFO L93 Difference]: Finished difference Result 4780 states and 5798 transitions. [2020-10-29 06:38:13,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:38:13,813 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 356 [2020-10-29 06:38:13,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:13,827 INFO L225 Difference]: With dead ends: 4780 [2020-10-29 06:38:13,827 INFO L226 Difference]: Without dead ends: 2683 [2020-10-29 06:38:13,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:38:13,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2020-10-29 06:38:13,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2536. [2020-10-29 06:38:13,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2536 states. [2020-10-29 06:38:13,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 2985 transitions. [2020-10-29 06:38:13,939 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 2985 transitions. Word has length 356 [2020-10-29 06:38:13,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:13,940 INFO L481 AbstractCegarLoop]: Abstraction has 2536 states and 2985 transitions. [2020-10-29 06:38:13,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:38:13,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 2985 transitions. [2020-10-29 06:38:13,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-10-29 06:38:13,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:13,954 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:13,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 06:38:13,955 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:13,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:13,956 INFO L82 PathProgramCache]: Analyzing trace with hash -633923529, now seen corresponding path program 1 times [2020-10-29 06:38:13,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:13,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107901844] [2020-10-29 06:38:13,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:14,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:14,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:15,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:15,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 387 [2020-10-29 06:38:15,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:38:15,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1319 [2020-10-29 06:38:15,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:15,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:15,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:15,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-29 06:38:15,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 06:38:15,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:15,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:15,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:15,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:15,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:15,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:15,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:38:15,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:15,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:15,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:15,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:15,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:15,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:15,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:15,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:15,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:15,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-29 06:38:15,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:15,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 06:38:15,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:15,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:15,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:15,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:15,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 06:38:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:15,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:15,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:15,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:38:15,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:15,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 06:38:15,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:15,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:15,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:15,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:15,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:15,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:15,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-29 06:38:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:15,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:15,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:15,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:38:15,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:15,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-29 06:38:15,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:15,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:15,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:15,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:15,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 06:38:15,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:15,969 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 72 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-29 06:38:15,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107901844] [2020-10-29 06:38:15,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:15,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:38:15,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500170639] [2020-10-29 06:38:15,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:38:15,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:15,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:38:15,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:38:15,972 INFO L87 Difference]: Start difference. First operand 2536 states and 2985 transitions. Second operand 5 states. [2020-10-29 06:38:17,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:17,409 INFO L93 Difference]: Finished difference Result 4777 states and 5656 transitions. [2020-10-29 06:38:17,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:38:17,410 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 371 [2020-10-29 06:38:17,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:17,411 INFO L225 Difference]: With dead ends: 4777 [2020-10-29 06:38:17,411 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 06:38:17,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:38:17,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 06:38:17,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 06:38:17,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 06:38:17,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 06:38:17,424 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 371 [2020-10-29 06:38:17,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:17,424 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 06:38:17,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:38:17,424 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 06:38:17,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 06:38:17,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 06:38:17,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 06:38:17,859 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 157 [2020-10-29 06:38:18,601 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 157 [2020-10-29 06:38:19,119 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 23 [2020-10-29 06:38:19,533 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 27 [2020-10-29 06:38:19,696 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 14 [2020-10-29 06:38:20,153 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 23 [2020-10-29 06:38:20,157 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 06:38:20,157 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 06:38:20,157 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 06:38:20,157 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 06:38:20,157 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:38:20,158 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-29 06:38:20,158 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:38:20,158 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-29 06:38:20,158 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-29 06:38:20,158 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-29 06:38:20,158 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-29 06:38:20,158 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-29 06:38:20,158 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-29 06:38:20,159 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-29 06:38:20,159 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-29 06:38:20,159 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-29 06:38:20,159 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-29 06:38:20,159 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-29 06:38:20,159 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-29 06:38:20,159 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-29 06:38:20,159 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,159 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,160 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,160 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,160 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,160 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,160 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-29 06:38:20,160 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-29 06:38:20,160 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-29 06:38:20,160 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-29 06:38:20,160 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-29 06:38:20,161 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-29 06:38:20,161 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-29 06:38:20,161 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-29 06:38:20,161 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-29 06:38:20,161 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-29 06:38:20,161 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-29 06:38:20,161 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,161 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,161 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,161 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,162 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,162 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-29 06:38:20,162 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-29 06:38:20,162 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-29 06:38:20,162 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-29 06:38:20,162 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-29 06:38:20,162 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-29 06:38:20,162 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-29 06:38:20,162 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-29 06:38:20,162 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-29 06:38:20,163 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-29 06:38:20,163 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-29 06:38:20,163 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-29 06:38:20,163 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-29 06:38:20,163 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-29 06:38:20,163 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,163 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,163 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,163 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,163 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,164 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-29 06:38:20,164 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-29 06:38:20,164 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-29 06:38:20,164 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-29 06:38:20,164 INFO L270 CegarLoopResult]: At program point L78(line 78) the Hoare annotation is: (and (not (= 3 |old(~a10~0)|)) (not (<= 4 |old(~a10~0)|)) (= 6 |old(~a19~0)|) (not (= 0 |old(~a10~0)|))) [2020-10-29 06:38:20,164 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-29 06:38:20,164 INFO L274 CegarLoopResult]: For program point L78-1(line 78) no Hoare annotation was computed. [2020-10-29 06:38:20,164 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-29 06:38:20,164 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-29 06:38:20,165 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-29 06:38:20,165 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-29 06:38:20,165 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,165 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,165 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,165 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,165 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,165 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-29 06:38:20,165 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-29 06:38:20,165 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-29 06:38:20,166 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-29 06:38:20,166 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-29 06:38:20,166 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-29 06:38:20,166 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-29 06:38:20,166 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-29 06:38:20,166 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-29 06:38:20,166 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-29 06:38:20,166 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-29 06:38:20,166 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-29 06:38:20,167 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-29 06:38:20,167 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,167 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,167 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,167 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,167 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,167 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-29 06:38:20,167 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-29 06:38:20,167 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-29 06:38:20,168 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-29 06:38:20,168 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-29 06:38:20,168 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,168 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,168 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-29 06:38:20,168 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-29 06:38:20,168 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-29 06:38:20,168 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-29 06:38:20,168 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,169 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,169 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,169 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,169 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,169 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-29 06:38:20,169 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-29 06:38:20,169 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-29 06:38:20,169 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-29 06:38:20,169 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-29 06:38:20,169 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-29 06:38:20,170 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-29 06:38:20,170 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-29 06:38:20,170 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-29 06:38:20,170 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-29 06:38:20,170 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-29 06:38:20,170 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-29 06:38:20,170 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-29 06:38:20,170 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,170 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,170 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,171 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,171 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-29 06:38:20,171 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,171 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,171 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-29 06:38:20,171 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-29 06:38:20,171 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-29 06:38:20,171 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-29 06:38:20,171 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-29 06:38:20,171 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-29 06:38:20,171 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-29 06:38:20,172 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-29 06:38:20,172 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-29 06:38:20,172 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-29 06:38:20,172 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-29 06:38:20,172 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-29 06:38:20,172 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-29 06:38:20,172 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,172 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,172 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,172 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,172 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,172 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,173 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-29 06:38:20,173 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or (not (<= 4 |old(~a10~0)|)) .cse0) (or .cse0 (not (= 0 |old(~a10~0)|))) (or (= 6 |old(~a19~0)|) .cse0) (or (not (= 3 |old(~a10~0)|)) .cse0))) [2020-10-29 06:38:20,173 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-29 06:38:20,173 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-29 06:38:20,173 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-29 06:38:20,173 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-29 06:38:20,173 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-29 06:38:20,174 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-29 06:38:20,174 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-29 06:38:20,174 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-29 06:38:20,174 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-29 06:38:20,174 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-29 06:38:20,174 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-29 06:38:20,174 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-29 06:38:20,174 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-29 06:38:20,174 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,175 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,175 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,175 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,175 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,175 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,175 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-29 06:38:20,175 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-29 06:38:20,175 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-29 06:38:20,175 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-29 06:38:20,175 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-29 06:38:20,176 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-29 06:38:20,176 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-29 06:38:20,176 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-29 06:38:20,176 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-29 06:38:20,176 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-29 06:38:20,176 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-29 06:38:20,176 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-29 06:38:20,176 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-29 06:38:20,176 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,176 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,177 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,177 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,177 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,177 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,177 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-29 06:38:20,177 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-29 06:38:20,177 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-29 06:38:20,177 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-29 06:38:20,177 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-29 06:38:20,177 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-29 06:38:20,177 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-29 06:38:20,177 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-29 06:38:20,178 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-29 06:38:20,178 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-29 06:38:20,178 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-29 06:38:20,178 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-29 06:38:20,178 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,178 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,178 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,178 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,178 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,178 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:20,178 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:38:20,179 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-29 06:38:20,179 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 06:38:20,179 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:38:20,179 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-29 06:38:20,179 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:38:20,179 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (or (= ~a10~0 3) (<= 4 ~a10~0) (= ~a10~0 0) (not (= 9 |old(~a19~0)|)) (not (= ~a19~0 6)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|))) [2020-10-29 06:38:20,179 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-29 06:38:20,180 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-29 06:38:20,180 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (or (= ~a10~0 3) (<= 4 ~a10~0) (= ~a10~0 0) (not (= 9 |old(~a19~0)|)) (not (= ~a19~0 6)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|))) [2020-10-29 06:38:20,180 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:38:20,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 06:38:20 BoogieIcfgContainer [2020-10-29 06:38:20,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 06:38:20,202 INFO L168 Benchmark]: Toolchain (without parser) took 58620.87 ms. Allocated memory was 169.9 MB in the beginning and 920.6 MB in the end (delta: 750.8 MB). Free memory was 123.4 MB in the beginning and 531.9 MB in the end (delta: -408.5 MB). Peak memory consumption was 531.7 MB. Max. memory is 8.0 GB. [2020-10-29 06:38:20,203 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 169.9 MB. Free memory was 142.0 MB in the beginning and 141.9 MB in the end (delta: 107.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 06:38:20,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.73 ms. Allocated memory is still 169.9 MB. Free memory was 122.8 MB in the beginning and 141.4 MB in the end (delta: -18.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 8.0 GB. [2020-10-29 06:38:20,204 INFO L168 Benchmark]: Boogie Preprocessor took 175.22 ms. Allocated memory is still 169.9 MB. Free memory was 141.4 MB in the beginning and 136.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-29 06:38:20,204 INFO L168 Benchmark]: RCFGBuilder took 1608.65 ms. Allocated memory was 169.9 MB in the beginning and 208.7 MB in the end (delta: 38.8 MB). Free memory was 136.6 MB in the beginning and 173.7 MB in the end (delta: -37.1 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. [2020-10-29 06:38:20,205 INFO L168 Benchmark]: TraceAbstraction took 56097.97 ms. Allocated memory was 208.7 MB in the beginning and 920.6 MB in the end (delta: 712.0 MB). Free memory was 173.2 MB in the beginning and 531.9 MB in the end (delta: -358.7 MB). Peak memory consumption was 541.5 MB. Max. memory is 8.0 GB. [2020-10-29 06:38:20,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 169.9 MB. Free memory was 142.0 MB in the beginning and 141.9 MB in the end (delta: 107.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 723.73 ms. Allocated memory is still 169.9 MB. Free memory was 122.8 MB in the beginning and 141.4 MB in the end (delta: -18.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 175.22 ms. Allocated memory is still 169.9 MB. Free memory was 141.4 MB in the beginning and 136.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1608.65 ms. Allocated memory was 169.9 MB in the beginning and 208.7 MB in the end (delta: 38.8 MB). Free memory was 136.6 MB in the beginning and 173.7 MB in the end (delta: -37.1 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 56097.97 ms. Allocated memory was 208.7 MB in the beginning and 920.6 MB in the end (delta: 712.0 MB). Free memory was 173.2 MB in the beginning and 531.9 MB in the end (delta: -358.7 MB). Peak memory consumption was 541.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((a10 == 3 || 4 <= a10) || a10 == 0) || !(9 == \old(a19))) || !(a19 == 6)) || !(0 == \old(a10))) || !(23 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 53.2s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 21.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 345 SDtfs, 4665 SDslu, 423 SDs, 0 SdLazy, 10918 SolverSat, 1711 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 189 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2536occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 907 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 252 PreInvPairs, 290 NumberOfFragments, 224 HoareAnnotationTreeSize, 252 FomulaSimplifications, 161155 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 28410 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 29.3s InterpolantComputationTime, 2844 NumberOfCodeBlocks, 2844 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2832 ConstructedInterpolants, 0 QuantifiedInterpolants, 1878279 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 1917/2106 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...